Коды ошибок lg vrf систем

00 Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. 01 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor 1 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor 02 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. 2 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. 03 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power 3 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power 04 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. 4 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. 05 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 5 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 06 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21 6 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21 07 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. 7 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. 08 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. 8 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. 09 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error — Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control. 9 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error — Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control. 10 RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8 11 Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly 12 RAC Product = EEPROM Sum Check Error, text 60 for help. 13 RAC Product = PSC (Reactor) Error, text 27 for help. 14 RAC Product = Compressor Phase Current Error 15 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 16 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 17 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 18 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 19 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 20 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 21 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current 22 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms . Check to earth 50 MOhm minimum, check run current 23 Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB 24 Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip. 25 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB 26 Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs 27 Inverter current irregularity. Check inverter PCB, check reactor connections and its resistance is less than 1 ohm. 28 Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB 29 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 30 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 31 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 32 Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge 33 Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge 34 Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework 35 Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open 36 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 37 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 38 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 39 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 40 Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs 41 Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. 42 Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 43 High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 44 Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C. If OK replace PCB, if not replace sensor 45 Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 46 Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 47 Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor 48 Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics 49 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB 50 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 51 Unit mismatch. Check model number of units do not exceed maximum. Multi V — also check Sub outdoor unit dipswitch settings 52 Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs . If OK either inverter or main PCB defective 53 Comms error indoor to outdoor unit. Check your wiring . Split and Multi — check voltage from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 54 Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 55 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 56 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 57 Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective 58 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 59 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 60 Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable. 61 Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables 62 Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V — check inverter cooling fan 63 Multi F(DX) — «Cond. Pipe Sensor Temp. Low» (opposite to Error Code 61). Check Temperature/Resistance reading and replace sensor if found to be faulty. If sensor okay, check for cause of low temperature and rectify. 64 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 65 Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C 67 Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and/or electrical failure, if okay replace pcb. 100 Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant 101 Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant 102 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 103 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 104 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 105 Communication error between outdoor main PCB and fan PCB. Check plug connections and LEDs. If OK, replace either main or fan PCB 106 Outdoor unit fan motor high current. Check fans rotate freely, and are connected correctly 107 Outdoor unit low voltage to fan PCB. Check 300 Vdc supply, check fuses and plug connections. If OK, replace fan PCB 108 Communication error between outdoor main PCB, and fan PCB. Check plug connections and LEDs. If OK replace either main or fan PCB 109 Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 110 Sub 1 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 111 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 113 Main outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 114 Main outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 115 Main outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 116 Sub 1 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 117 Sub 1 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 118 Sub 1 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor 120 Sub 1 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor 121 Sub 1 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor 122 Sub 1 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor 123 Sub 1 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 124 Sub 1 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 125 Sub 1 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 126 Sub 1 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 127 Sub 1 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 128 Sub 2 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 129 Sub 2 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 130 Sub 2 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor 132 Sub 2 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C.if not replace sensor 133 Sub 2 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C. if not replace sensor 134 Sub 2 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C.if not replace sensor 135 Sub 2 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 136 Sub 2 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 137 Sub 2 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 138 Sub 2 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 139 Sub 2 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 140 Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 141 Sub 2 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 142 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 143 Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 144 Sub 1 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 145 Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 146 Sub 2 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 147 Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%).check fuses, if fuses OK replace outdoor main PCB 148 Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 149 Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 150 Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 151 Faulty 4 way valve. Check solenoid coil and output from PCB. If OK, mechanical failure. 152 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 153 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 154 Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 155 Sub 3 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 156 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 157 Sub 3 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 158 Sub 3 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 159 Sub 3 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor 161 Sub 3 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor 162 Sub 3 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor 163 Sub 3 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C.if not replace sensor 164 Sub 3 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 165 Sub 3 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 166 Sub 3 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 167 Sub 3 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 168 Sub 3 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 169 Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 170 Sub 3 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 171 Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 172 Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 173 Main outdoor unit standard compressor not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 174 Sub 1 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 175 Sub 1 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 176 Sub 2 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 177 Sub 2 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 204 Comms Error between Outdoor Unit and HR Box No1. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB 208 Comms Error between Outdoor Unit and HR Box No2. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB 212 Comms Error between Outdoor Unit and HR Box No3. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB 240 Central controller wiring error. Check all comms wiring, including between controller and CNU, and IP addresses. If OK possible defective CNU 241 Central controller data sending error. Either defective CNU or Central controller initialisation failure 242 Central controller data receiving error. Either defective CNU or Central controller initialisation failure 243 Central controller. Comms cable too long or picking up external electrical noise. If OK, mismatching of controllers, or defective CNU 244 Central controller data receiving time out. Either defective CNU or Central controller initialisation failure 245 Central controller data sending time out. Either defective CNU or Central controller initialisation failure 246 Central controller data receiving time out. Either defective CNU or Central controller initialisation failure 250 Central controller data receiving error. Either comms cable picking up external electrical noise, or defective CNU 251 Central controller receiving no data. Either comms cable picking up external electrical noise, or defective CNU 252 Central controller incorrect address error. Check addresses match, if OK either comms cable picking up external electrical noise, or defective CNU 253 Central Controller Disconnection Error, No response from Air Conditioner. Check wiring, if OK either comms cable picking up external electrical noise, defective CNU, or Interface. C1 Indoor unit return air sensor fault, Open or Short. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor C2 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. C4 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. C5 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 C6 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current C7 Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. C8 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. C9 Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. CA Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. CC RAC Product = EEPROM Sum Check Error, text 60 for help. Cd RAC Product = PSC (Reactor) Error, text 27 for help. CE RAC Product = Compressor Phase Current Error CH00 Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. CH01 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor CH02 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. CH03 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power CH04 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. CH05 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 CH06 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21 CH07 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. CH08 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. CH09 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = indoor PCB failure. Replace PCB CH10 RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8 CH11 Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly CH12 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH13 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH14 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH15 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH16 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH17 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH18 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH19 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH20 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH21 Inverter compressor run current high. Check compressor windings all equal 1 to 4 OhmsCheck to earth 50 MOhm minimum, check run current CH22 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms . Check to earth 50 MOhm minimum, check run current CH23 Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB CH24 Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip. CH25 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB CH26 Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs CH27 Inverter current irregularity. Check inverter PCB and reactor CH28 Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB CH29 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH30 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH31 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH32 Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge CH33 Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge CH34 Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework CH35 Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open CH36 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH37 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH38 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH39 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH40 Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs CH41 Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20C and 168 kOhm at 30C. CH42 Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar CH43 High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar CH44 Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor CH45 Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor CH46 Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor CH47 Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor CH48 Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics CH49 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB CH50 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH51 Unit mismatch. Check model number of units do not exceed maximum. Multi V — also check Sub outdoor unit dipswitch settings CH52 Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs . If OK either inverter or main PCB defective CH53 Comms error indoor to outdoor unit. Check your wiring . Split and Multi — check voltage from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 CH54 Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault CH55 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH56 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH57 Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective CH58 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH59 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH60 Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable. CH61 Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables CH62 Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V — check inverter cooling fan CH63 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH64 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH65 Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C CH67 Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and electrical failure. CL CL = Child Lock. Press Timer & Min buttons simultaneously for 5 seconds to engage/disengage function. help Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. HL Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. Alternatively, Dry Contact Interface is in «OFF» condition. Check status and adjust as necessary. Po Po = Jet Cool Mode selected. To cancel press Jet Cool, Fan Speed or Set Temperature button.

Система кондиционирования воздуха в домах и квартирах уже давно стала привычным явлением. В летнюю жару приятно возвращаться домой, где благодаря сплит системе LG создана комфортная температура. Кондиционеры LG по праву занимают одни из лидирующих позиций во всем мире, предлагая своим покупателям передовые разработки в области технологий и изысканный дизайн. Компания производит множество моделей: от оконных кондиционеров до современных сплит систем. И, несмотря на то, что сплит системы LG являются одними из самых надежных на рынке, все-таки иногда возможны ситуации, когда кондиционер LG выходит из строя. В этом случае на дисплее кондиционера LG высвечиваются определенные коды ошибок. С их помощью можно понять, какая система кондиционера LG вышла из строя, и попытаться или устранить возникшую поломку самостоятельно, или, что правильнее, обратиться в сервисный центр LG.

Давайте рассмотрим коды ошибок кондиционеров LG:

• Ошибка кондиционеров LG CH 01 означает, что во внутреннем датчике температуры воздуха произошло короткое замыкание или обрыв цепи.
• Ошибка сплит системы LG CH 02 означает, что замкнуло датчик температуры испарителя или произошел обрыв в цепи.
• Ошибка сплит системы LG CH 03 означает, что кондиционер и нагревает, и охлаждает воздух в помещении одновременно.
• Ошибка сплит системы LG CH 04 показывает, что в температурном датчике конденсатора произошло короткое замыкание или обрыв цепи.
• CH 05 ошибка показывает, что нарушено соединение между внутренним и внешним блоком кондиционера. 05 ошибка возникает из-за обрыва линии или отсутствия контакта.
• Ошибка сплит системы LG CH 06 показывает, что превышен максимальный предел электропитания в цепи инверторного модуля.
• Ошибка сплит системы LG CH 07 показывает, что превышен максимальный предел электропитания компрессора.
• CH 08 ошибка показывает, что не вращается вентилятор внутреннего блока.
• Ошибка сплит системы LG СН 09 означает, что не вращается вентилятор внешнего блока.
• Ошибка сплит системы LG CH 10 кондиционера LG означает, что неисправен терморезистор контроля температуры корпуса компрессора сплит системы LG.

Все перечисленные коды ошибок LG кондиционера достаточно серьезны и за устранением причин возникших неполадок лучше обратиться к специалистам сервисного центра LG.

Если кода ошибки нет, а мигает один или все светодиодные индикаторы на панели советуем посмотреть в инструкции полную версию кодов ошибок кондиционера LG, чтобы уточнить причину.

Если на панели кондиционера мигает код Po, это означает, что система находится в энергосберегающем режиме, ошибки LG кондиционера в данном случае нет. Также об отсутствии ошибки LG кондиционера говорит тот факт, что на панели мигает код Lo, что означает, что система находится в режиме тестирования.

Варианты ошибок, которые отображаются на панели, различаются в зависимости от модели кондиционера, и все они требуют вашего пристального внимания и решения с привлечением профессионалов или своими силами. Так техника прослужит вам нет 1 год и не 5 лет, а гораздо дольше.

Дополнительный совет: регулярно мойте фильтры в кондиционерах. Во время работы кондиционер прогоняет через себя воздух, в котором содержится пыль, волосы или шерсть, если у вас есть домашний питомец. Все это оседает на фильтрах и внутренних частях прибора и кроме собственно загрязнения может послужить причиной прочих проблем:

• Из-за пыли воздух в кондиционере хуже циркулирует, и тем самым помещение медленнее охлаждается.
• Перегревается теплообменник, что может привести к быстрому износу компрессора.
• В пыли могут появляться вирусы, споры плесени и грибков, пылевые клещи, что может стать причиной аллергии и других проблем со здоровьем.

Обычно помыть фильтр бывает достаточно просто. Например, в случае с моделью LG DualCool решетка фильтра располагается по всей верхней поверхности, ее легко снимать и вставлять на место. Если модель вашего кондиционера LG устроена иначе — обратитесь в фирменный сервис LG, чтобы фильтры прочистил квалифицированный сотрудник. Это в любом случае доставит меньше неудобств, некомфортная температура дома или риски для здоровья.

LG is one of the leading multinational companies based in South Korea. What started as a small venture has now turned into a billion-dollar empire that focuses on a wide range of technology-based sectors. Offering customers all that they can need from air conditioning, TVs, washing machines, to state-of-the-art AI systems. Making sure you get a quality built and desirable appliance that enhances your everyday life.

LG VRF is said to be one of the most powerful and versatile air conditioners, offering you a cost-effective and easy-to-install a system that will help you eradicate all your issues. Offering both indoor and outdoor units, it can help you set up the right way. Their VRF system is designed to help you minimize efficiency losses while providing you sustainable energy benefits. Additionally, it aims to provide you with comfort, reliability, energy efficiency, and smart solutions for your space.

With such a huge system comes a chance of error in function. Fortunately, the system offers you with specific error codes you can use to regain effective working. Start by noting down the error code, and match it using the list below. Once you have the error code you can easily work your way to the fix. To help you out we have listed down some of the most common error codes for LG VRF.

Codes List

1. Indicate different types of unit failures, assist in self-diagnosis and to track the frequency of occurrence.
2. Error codes are shown on the LED of indoor units, wired remote controller, the outdoor unit control board, and on the main screen of the LG Monitoring View (LGMV) Diagnostic Software.
3. If two or more errors occur simultaneously, the lower error code number is displayed first.
4. After error is resolved, the error code does not display.

Error Display;

The first, second, and third number on the LED indicates error number; the fourth number on LED indicates outdoor unit number.

Examples: 211 = Error No. 21 on master unit, 213 = Error No. 21 on slave2 unit, Error No. 105 on master unit on compressor 1.

Error Code Nomenclature Definitions;

1. MICOM: Non-volatile memory chip where unit setup information is stored.
2. EPROM: Non-volatile memory chip where device identification, size, and factory defined default component operating parameters are stored.

Error Codes	Description
01	Indoor unit return air or optional remote wall temperature sensor communications error
02	Indoor unit inlet pipe temperature sensor communication error
03	Communication error between zone controller and indoor unit
04	Condensate float switch error
05	Communication error between outdoor unit and indoor unit
06	Indoor unit outlet pipe temperature sensor error
07	Indoor units are not operating in the same mode
09	Indoor unit EPROM error
10	Indoor unit BLDC fan motor communications error
211	Master outdoor unit inverter compressor PCB error
212	Slave1 outdoor unit inverter compressor PCB error
213	Slave2 outdoor unit inverter compressor PCB error
221	Master outdoor unit inverter board input overcurrent (RMS) error
222	Slave1 outdoor unit inverter board input overcurrent (RMS) error
223	Slave2 outdoor unit inverter board input overcurrent (RMS) error
231	Low DC voltage sensed at the master outdoor unit inverter compressor DC link
232	Low voltage to the slave1 outdoor unit inverter compressor DC link
233	Low voltage to the slave2 outdoor unit inverter compressor DC link
241	Master outdoor unit high pressure switch error
242	Slave1 outdoor unit high pressure switch error
243	Slave2 outdoor unit high pressure switch error
251	Input voltage to the master outdoor unit is too high or too low
252	Input voltage to the slave1 outdoor unit is too high or too low
253	Input voltage to the slave2 outdoor unit is too high or too low
261	Master outdoor unit inverter compressor operation error
262	Slave1 outdoor unit inverter compressor operation error
263	Slave2 outdoor unit inverter compressor operation error
281	Master outdoor unit inverter DC link high voltage error
282	Slave1 outdoor unit inverter DC link high voltage error

Other Codes:

• 283 Slave2 outdoor unit inverter DC link high voltage error
• 291 Master outdoor unit inverter compressor overcurrent error
• 292 Slave1 outdoor unit inverter compressor overcurrent error
• 293 Slave2 outdoor unit inverter compressor overcurrent error
• 321 Excessive increase in master outdoor unit inverter com- pressor1 gas discharge temperature
• 322 Excessive increase in slave1 outdoor unit inverter com- pressor1 gas discharge temperature
• 323 Excessive increase in slave2 outdoor unit inverter com- pressor1 gas discharge temperature
• 331 Excessive increase in master outdoor unit inverter com- pressor2 gas discharge temperature
• 332 Excessive increase in slave1 outdoor unit inverter com- pressor2 gas discharge temperature
• 333 Excessive increase in slave2 outdoor unit inverter com- pressor2 gas discharge temperature
• 341 Master outdoor unit compressor high pressure safety tripped
• 342 Slave1 outdoor unit compressor high pressure safety tripped
• 343 Slave2 outdoor unit compressor high pressure safety tripped
• 351 Master outdoor unit low side pressure transducer sens- es pressure below allowable limits
• 352 Slave1 outdoor unit low side pressure transducer sens- es pressure below allowable limits
• 353 Slave1 outdoor unit low side pressure transducer sens- es pressure below allowable limits
• 361 Master outdoor unit fell below low condenser (compression) ratio limit
• 362 Slave1 outdoor unit fell below low condenser (compression) ratio limit
• 363 Slave2 outdoor unit fell below low condenser (com- pression) ratio limit
• 401 Master outdoor unit inverter compressor current trans- ducer (CT) sensor error
• 402 Slave1 outdoor unit inverter compressor current trans- ducer (CT) sensor error
• 403 Slave2 outdoor unit inverter compressor current trans- ducer (CT) sensor error
• 411 Master outdoor unit inverter compressor1 discharge pipe temperature sensor error
• 412 Slave1 outdoor unit inverter compressor1 discharge pipe temperature sensor error
• 413 Slave2 outdoor unit inverter compressor1 discharge pipe temperature sensor error.
• 421 Master outdoor unit low pressure transducer error
• 422 Slave1 outdoor unit low pressure transducer error
• 423 Slave2 outdoor unit low pressure transducer error
• 431 Master outdoor unit high pressure transducer error
• 432 Slave1 outdoor unit high pressure transducer error
• 433 Slave2 outdoor unit high pressure transducer error
• 441 Master outdoor unit ambient temperature sensor error
• 442 Slave1 outdoor unit ambient temperature sensor error
• 443 Slave2 outdoor unit ambient temperature sensor error
• 451 Master outdoor unit heat exchanger pipe temperature sensor (front side, TH_HEX2) error
• 452 Slave1 outdoor unit heat exchanger pipe temperature sensor (front side, TH_HEX2) error
• 453 Slave2 outdoor unit heat exchanger pipe temperature sensor (front side, TH_HEX2) error
• 461 Master outdoor unit suction pipe temperature sensor error
• 462 Slave1 outdoor unit suction pipe temperature sensor error
• 463 Slave2 outdoor unit suction pipe temperature sensor error
• 471 Master outdoor unit inverter compressor2 discharge temperature sensor error
• 472 Slave1 outdoor unit inverter compressor2 discharge temperature sensor error
• 473 Slave2 outdoor unit inverter compressor2 discharge temperature sensor error
• 491 Master outdoor unit IPM temperature sensor error
• 492 Slave1 outdoor unit IPM temperature sensor error
• 493 Slave2 outdoor unit IPM temperature sensor error
• 501 Master outdoor unit three-phase power is not connected properly
• 502 Slave1 outdoor unit three-phase power is not connected properly
• 503 Slave2 outdoor unit three-phase power is not connected properly
• 511 Combination ratio is out of range
• 512 Total indoor unit capacity exceeds allowable heat recovery unit branch capacity
• 521 Communication error between master outdoor unit inverter PCB and main PCB
• 522 Communication error between slave1 outdoor unit inverter PCB and main PCB
• 523 Communication error between slave2 outdoor unit inverter PCB and main PCB
• 531 Communication error between outdoor unit main PCB and indoor unit(s) PCB
• 541 Master outdoor unit power error
• 542 Slave1 outdoor unit power error
• 543 Slave2 outdoor unit power error
• 571 Master outdoor unit main PCB and inverter PCB communication error
• 572 Slave1 outdoor unit main PCB and inverter PCB communication error
• 573 Slave2 outdoor unit main PCB and inverter PCB communication error
• 591 Outdoor unit series installation error
• 601 Master outdoor unit inverter PCB EPROM error
• 602 Slave1 outdoor unit inverter PCB EPROM error
• 603 Slave2 outdoor unit inverter PCB EPROM error
• 621 High temperature at the master outdoor unit inverter heatsink
• 622 High temperature at the slave1 outdoor unit inverter heatsink
• 623 High temperature at the slave2 outdoor unit inverter heatsink
• 651 Master outdoor unit inverter heatsink temperature sensor error
• 652 Slave1 outdoor unit inverter heatsink temperature sensor error
• 653 Slave2 outdoor unit inverter heatsink temperature sensor error
• 671 Master outdoor unit fan has locked up
• 672 Slave1 outdoor unit fan has locked up
• 673 Slave2 outdoor unit fan has locked up
• 711 Master outdoor unit converter CT sensor error
• 712 Slave1 outdoor unit converter CT sensor error
• 713 Slave2 outdoor unit converter CT sensor error
• 751 Master outdoor unit fan CT sensor error
• 752 Slave1 outdoor unit fan CT sensor error
• 753 Slave2 outdoor unit fan CT sensor error
• 761 Master outdoor unit fan DC link high voltage error
• 762 Slave1 outdoor unit fan DC link high voltage error
• 763 Slave2 outdoor unit fan DC link high voltage error
• 771 Master outdoor unit fan overcurrent error
• 772 Slave1 outdoor unit fan overcurrent error
• 773 Slave2 outdoor unit fan overcurrent error
• 791 Master outdoor unit fan operation failure error
• 792 Slave1 outdoor unit fan operation failure error
• 793 Slave2 outdoor unit fan operation failure error
• 861 Master outdoor unit main PCB onboard EPROM error
• 862 Slave1 outdoor unit main PCB onboard EPROM error
• 863 Slave2 outdoor unit main PCB onboard EPROM error
• 871 Master outdoor unit fan PCB EPROM error
• 872 Slave1 outdoor unit fan PCB EPROM error
• 873 Slave2 outdoor unit fan PCB EPROM error
• 1041 Communication error between master outdoor unit and slave outdoor units
• 1042 Communication error between slave1 outdoor unit and master and slave2 outdoor units
• 1043 Communication error between slave2 outdoor unit and master and slave1 outdoor units
• 1051 Master outdoor unit fan PCB to compressor PCB communication error
• 1052 Slave1 outdoor unit fan PCB to compressor PCB communication error
• 1053 Slave2 outdoor unit fan PCB to compressor PCB communication error
• 1061 Master outdoor unit fan IPM error
• 1062 Slave1 outdoor unit fan IPM error
• 1063 Slave2 outdoor unit fan IPM error
• 1071 Master outdoor unit fan DC link low voltage error
• 1072 Slave1 outdoor unit fan DC link low voltage error
• 1073 Slave2 outdoor unit fan DC link low voltage error
• 1131 Master outdoor unit liquid pipe temperature sensor error
• 1132 Slave1 outdoor unit liquid pipe temperature sensor error
• 1133 Slave2 outdoor unit liquid pipe temperature sensor error
• 1141 Master outdoor unit subcooling inlet temperature sensor error
• 1142 Slave1 outdoor unit subcooling inlet temperature sensor error
• 1143 Slave2 outdoor unit subcooling inlet temperature sensor error
• 1151 Master outdoor unit subcooling outlet temperature sensor error
• 1152 Slave1 outdoor unit subcooling outlet temperature sensor error
• 1153 Slave2 outdoor unit subcooling outlet temperature sensor error
• 1161 Master outdoor unit oil level sensor error
• 1162 Slave1 outdoor unit oil level sensor error
• 1163 Slave2 outdoor unit oil level sensor error
• 1451 Communication error between master outdoor unit main board and external board
• 1452 Communication error between slave1 outdoor unit main board and external board
• 1453 Communication error between slave2 outdoor unit main board and external board
• 1511 Master outdoor unit operation mode conversion error
• 1512 Slave1 outdoor unit operation mode conversion error
• 1513 Slave2 outdoor unit operation mode conversion error
• 1531 Master outdoor unit upper heat exchanger temperature sensor error
• 1532 Slave1 outdoor unit upper heat exchanger temperature sensor error
• 1533 Slave2 outdoor unit upper heat exchanger temperature sensor error
• 1541 Master outdoor unit lower heat exchanger temperature sensor error
• 1542 Slave1 outdoor unit lower heat exchanger temperature sensor error
• 1543 Slave2 outdoor unit lower heat exchanger tempera- ture sensor error
• 1821 Communication error between master outdoor unit external board main and sub MICOMs
• 1822 Communication error between slave1 outdoor unit external board main and sub MICOMs
• 1823 Communication error between slave2 outdoor unit external board main and sub MICOMs
• 1931 Excessive increase in master outdoor unit fan heatsink temperature
• 1932 Excessive increase in slave1 outdoor unit fan heat- sink temperature
• 1933 Excessive increase in slave2 outdoor unit fan heat- sink temperature
• 1941 Master outdoor unit fan heatsink temperature sensor error
• 1942 Slave1 outdoor unit fan heatsink temperature sensor error
• 1943 Slave2 outdoor unit fan heatsink temperature sensor error
• 2001 Valve addressing error
• 2011 Heat recovery unit liquid sensor error.
• 2021 Heat recovery unit subcooling pipe inlet sensor error
• 2031 Heat recovery unit subcooling pipe outlet sensor error
• 2041 Communication error between outdoor unit and heat recovery unit
• 2051 Communication error between heat recovery unit and the 485 modem
• 2061 Duplicate address error of the heat recovery unit
• 51 Capacity of indoor units connected to the heat recovery unit exceeds allowable limits

Note: To use open line 485 communication (9,600 bps communication), you need to use a product that is compatible with all of the “Generation 4” versions of the indoor units, heat recovery units, outdoor units, and accessories.

Q&A

CH50

Description: Outdoor unit three-phase power is not connected properly.

Details: One or more of R(L1), S(L2), T(L3) input power line connections is / are missing for the outdoor unit.

Causes:
1. Input voltage is not correct R(L1), S(L2), T(L3).
2. Power line connections may not be correct.
3. Main PCB may be damaged.
4. Inverter PCB input current sensor error.

Manuals Pdf

LG Multi V Service Manual PDF

LG Multi V 5 Service Manual – VRF (Variable Refrigerant Flow) Outdoor Units 6.0 to 42.0 Tons.pdf

LG Multi V 4 Service Manual – Heat Pump and Heat Recovery Variable Refrigerant Flow Outdoor Units 6.0 to 42.0 Tons.pdf

Lg AC Error Codes

Какая ошибка у вашего кондиционера?

Коды ошибок инверторных кондиционеров LG

Коды ошибок промышленных кондиционеров LG