Сервис 120 ошибка рациональ

The Rational Self Cooking Center not only makes cooking easy, but it also has some helpful features for technicians who service the equipment. Perhaps one of the best features is the machine’s ability to offer diagnostic codes. Each code will tell you what’s wrong with the oven, allowing you to tackle the issue quicker.

Below are lists that define certain Rational SCC service codes along with their potential causes and remedies.

Service Codes – SCC whitefficiency®

Service 10

• What’s the cause? SC pump has high water level
• Remedy? Drain SC pump hose

Service 11

• What’s the cause? CDS sensor sending too many pulses
• Remedy? See if there is leaking in the level electrode and water path to the steam generator

Service 12

• What’s the cause? CDS sensor without signal
• Remedy? Check if the CDS sensor’s signal is blocked of there is low water pressure

Service 13

• What’s the cause? Steam generator isn’t refilled during steam mode
• Remedy? Check the level electrode’s 0-1 signal to the PCB

Service 14

• What’s the cause? Level electrode isn’t recognizing water
• Remedy? Water conductivity is too low and needs reverse osmosis treatment

Service 16

• What’s the cause? Old software structure
• Remedy?

Service 17

• What’s the cause? SD card not initialized
• Remedy? Clean the existing SD card or use a new one

Service 18

• What’s the cause? Defective SD card
• Remedy? Use a new SD card

Service 19.1

• What’s the cause? SD card not inserted
• Remedy? Insert the SD card

Service 20.x

• What’s the cause? Defective thermocouple
• Probes (x):
  • 20.1: Cabinet B1 thermocouple
  • 20.2: Quenching B2 thermocouple
  • 20.4: Humidity B4 thermocouple
  • 20.8: Steam generator B5 thermocouple
  • COMBINATION OF FAULTY PROBES CAN DISPLAY (EXAMPLE: FAULTY B2 AND B4 THERMOCOUPLES WILL DISPLAY AS “20.6″)
• Remedy? Replace thermocouple

Service 23

• What’s the cause? SSR steam short circuit
• Remedy? Repair or replace

Service 24

• What’s the cause? SSR hot air short circuit
• Remedy? Repair or replace

Service 25

• What’s the cause? Improper water flow during CleanJet
• Remedy? Check the water pressure, water supply, moistening valve and nozzle and CDS sensor
• BONUS TIP: One of our members, Ectofix, provided a helpful Service 25 troubleshooting sheet to help resolve this issue even further

Service 26

• What’s the cause? Permanently closed drain valve
• Remedy? Replace the drain valve assembly

Service 27

• What’s the cause? Drain valve won’t close during initialization
• Remedy? Start the rinse/abort program

Service 28

• What’s the cause? Thermocouple steam generator B5 temperature is above 356 degrees F (180 degrees C)
• Remedy? Indicator will go off when temperature goes below 230 degrees F (110 degrees C)

Service 29

• What’s the cause? PCB temperature is above 185 degrees F (85 degrees C)
• Remedy? Check the air filter, cooling fan and control panel gasket as well as external heat sources and air escape openings

Service 30

• What’s the cause? Unit runs in emergency humidity control
• Remedy? Humidity control is out of function and needs to be repaired or replaced

Service 31.x

• What’s the cause? Faulty core probe
• Probes (x):
  • 31.1: Shaft probe
  • 31.2: Fifth probe (near shaft)
  • 31.4: Fourth probe
  • 31.8: Third probe
  • 31.16: Second probe
  • 31.32: First probe in tip
  • COMBINATION OF FAULTY PROBES CAN DISPLAY (EXAMPLE: FAULTY FOURTH AND THIRD PROBE WILL DISPLAY AS “31.12″)
• Remedy? Repair or replace the faulty probe

Service 32.0-1-2

• What’s the cause? Faulty ignition box
• Ignition boxes:
  • 32.0: Ignition box top
  • 32.1: Ignition box bottom (floor models only)
  • 32.2: Both ignition boxes
• Remedy? Change the ignition box that appears in error code

Service 33.1-2

• What’s the cause? Faulty ignition box
• Ignition boxes:
  • 31.1: Ignition box bottom (floor models only)
  • 31.2: Both ignition boxes
• Remedy? Check the ignition wiring or ignition box gas valve and supply

Service 34.xx

• What’s the cause? Bus signal problems
• Probes (x):
  • 34.1: Motor top
  • 34.2: Motor bottom
  • 34.4: Ignition module top
  • 34.8: Ignition module bottom
  • COMBINATION OF BUS SIGNAL PROBLEMS CAN DISPLAY (EXAMPLE: IGNITION MODULE TOP AND BOTTOM WILL DISPLAY AS “34.12″)
• Remedy? See if the bus cable plug and cable connection are connected or damaged

Service 35

• What’s the cause? Bus signal can’t be processed due to disconnected ultravent
• Remedy?? Connect the ultravent

Service 36

• What’s the cause? Defective differential pressure sensor P1
• Remedy? Repair or replace the sensor

Service 37

• What’s the cause? Differential pressure sensor P1 isn’t in expected range
• Remedy? Check the connection of hoses

Service 40

• What’s the cause? Care pump is broken or doesn’t fill enough solution into the steam generator
• Remedy? Check if the hose from the care pump outlet isn’t kinked and reset error by completed a successful rinse program

Service 41

• What’s the cause? Defective solenoid valve Y3, blocked moistening valve or CDS isn’t sending pulses
• Remedy? Resolve issue and reset error by completed a successful rinse program

Service 42

• What’s the cause? Defective solenoid Y4 Care, hose to Care container blocked/kinked or CDS isn’t sending pulses
• Remedy? Resolve issue and reset error by completed a successful rinse program

Service 43

• What’s the cause? Solenoid Y1, Y3 or Y4 is passing water/won’t close and CDS is always sending pulses
• Remedy? Reset error by completed an abort program

Service 44

• What’s the cause? Steam not heating during CleanJet+Care
• Remedy? Reset error by completed an abort program

Service 60

• What’s the cause? Incorrect initialization of ignition box?
• Remedy? Check the gas settings and switch the unit off and on again before running SD Repair program?

Service 63

• What’s the cause? Self-test running without water
• Remedy? Allow the unit to cool down and see if? B1, B2 and B4 are below 104?F (40?C); Set Selftest to ON and switch unit off and on
  again before running Selftest

Service 100

• What’s the cause? Defective SC pump or calcified level electrode
• Remedy? Reset error by completed an abort program

Service 120

• What’s the cause? Defective Care pump M12 or level electrode
• Remedy? Reset error by completed an abort program

Downloadable PDF Version

Failure Codes – SCC Line Combi Master (04-2004)

OPEn / H2o

• Where does it display? Timer
• Where does H2o alternate display? Internal Cabinet Display
• What’s the issue? H2O open
• Why? Lack of water or an open water tap

PoL / CHnG

• Where does it display? Timer
• Where does CHnG alternate display? Internal Cabinet Display
• What’s the cause? Polarity change
• Why? Phase / neutral (gas units only)

E1

• Where does it display? Timer
• What’s the cause? External EEPROM
• Why? Not initialized

E2

• Where does it display? Timer
• What’s the cause? Timeout of external power optimizing system
• Why? Heating block by the external energy-optimizing system is longer than two minutes

E3

• Where does it display? Timer
• What’s the cause? B1 interior cabinet sensor
• Why? Sensor is broken

E4

• Where does it display? Timer
• What’s the cause? B2 quenching sensor
• Why? Sensor is broken

E5

• Where does it display? Timer
• What’s the cause? B3 core sensor
• Why? Sensor is broken

E6

• Where does it display? Timer
• What’s the cause? B5 sensor steam generator
• Why? Sensor is broken

E7

• Where does it display? Timer
• What’s the cause? Thermocouple on PCB
• Why? Sensor is broken

E8

• Where does it display? Timer
• What’s the cause? Poti interior cabinet
• Why? Defective

E9

• Where does it display? Timer
• What’s the cause? Poti timer/core temperature
• Why? Defective

E10

• Where does it display? Timer
• What’s the cause? External EEPROM
• Why? Defective

E11

• Where does it display? Timer
• What’s the cause? Mode switch
• Why? Cooking mode couldn’t be identified five seconds after the unit was switched on

E12 / 1 St

• Where does E12 display? Timer
• Where does 1 St alternate display? Internal Cabinet Display
• What’s the cause? Bottom fan motor issue
• Why? Motor is defective (St=Status)

E12?/ 1 Co

• Where does E12 display? Timer
• Where does 1 Co display? Internal Cabinet Display
• What’s the cause? Bottom fan motor issue
• Why? Bus failure (Co=Communication)

E12?/ 2 St

• Where does E12 display? Timer
• Where does 2 St alternate display? Internal Cabinet Display
• What’s the cause? Top fan motor issue
• Why? Motor is defective (St=Status)

E12?/ 2 Co

• Where does E12 display? Timer
• Where does 2 Co alternate display? Internal Cabinet Display
• What’s the cause? Top fan motor issue
• Why? Bus failure (Co=Communication)

E13

• Where does it display? Timer
• What’s the cause? M4 SC pump
• Why? Malfunction

E14

• Where does it display? Timer
• What’s the cause? Solenoid valve filling Y1
• Why? Malfunction

E15

• Where does it display? Timer
• What’s the cause? PCB temperature
• Why? Above 185 degrees F (85 degrees C)

E16

• Where does it display? Timer
• What’s the cause? Steam generator
• Why? B5 temperature above 356 degrees F (180 degrees C)

E17

• Where does it display? Timer
• What’s the cause? Steam generator
• Why? B5 temperature below 23 degrees F (-5 degrees C)

E18

• Where does it display? Timer
• What’s the cause? Interior cabinet temperature
• Why? B1 temperature above 644 degrees F (340 degrees C)

E20 / 1_

• Where does E20 display? Timer
• Where does 1_ alternate display? Internal Cabinet Display
• What’s the cause? Ignition box 1
• Why? Ignition box isn’t replying due to bus failure

E21 / 2_

• Where does E21 display? Timer
• Where does 2_ alternate display? Internal Cabinet Display
• What’s the cause? Ignition box 2
• Why? Ignition box isn’t replying due to bus failure

E21 / 1xx

• Where does E21 display? Timer
• Where does 1xx display? Internal Cabinet Display
• What’s the cause? Ignition box 1 steam
• Why? Defective ignition box

E22 / 2xx

• Where does E22 display? Timer
• Where does 2xx alternate display? Internal Cabinet Display
• What’s the cause? Ignition box 1 hot air
• Why? Defective ignition box

E22 / 3xx

• Where does E22 display? Timer
• Where does 3xx alternate display? Internal Cabinet Display
• What’s the cause? Ignition box 2 hot air
• Why? Defective ignition box

E22 / 1xx

• Where does E22 display? Timer
• Where does 1xx alternate display? Internal Cabinet Display
• What’s the cause??Ignition box 1 steam
• Why??Testing and monitoring ignition is required

E23 / 2xx

• Where does E23 display? Timer
• Where does 2xx alternate display? Internal Cabinet Display
• What’s the cause? Ignition box 1 hot air
• Why? Testing and monitoring ignition is required

E23 / 3xx

• Where does E23 display? Timer
• Where does 3xx alternate display? Internal Cabinet Display
• What’s the cause? Ignition box 2 hot air
• Why? Testing and monitoring ignition is required

E24

• Where does E24 display? Timer
• What’s the cause? EEPROM
• Why? EEPROM’s data structure doesn’t match with software

Downloadable PDF Version

Contributions from the Community

Our community members have posted about service codes associated with other Rational SCC models or software versions. These are some of the most helpful from over the years.

Rational Service Code 21 – SCC-62G

When a member asked what service code 21 meant on a SCC-62G in emergency mode, it spurred a very helpful discussion. Rationaltechnician provided the following answer:

On models produced up to October 2011 (index E & G), Service 21 meant only that the cam on clima motor did not do a 360 degree rotation in the?allowed 20 seconds.? Possible it did not rotate at all.

Every time the door is opened and closed while the unit is on, it does a check (initialization of the Clima Valve and times it).

Answer from rationaltechnician – Rational service code 21

What Does Service Code 33-1 Mean?

While we addressed this code above, rationaltechnician provided more details on it:

33-1 means bottom ignition module.? But this only applies on floor models such as 201 & 202.? In this case of a 102 (table model) there is only one ignition module so the -1 has no need.? But it shows anyway.

Answer from rationaltechnician – What does service code 33-1 on a rational SCC…

Got any other tips or codes from other models and variations? Share them with us in the forum!

Service 40

Care pump

Cleanjet not possible

Service 41

Solenoid valve Y3

Maintenance needed

Service 42

Solenoid valve Y4

Service 43

CDS sensor

Service 44

Steam heating / B1 control

Service 100

Main contactor — pcb on off switch

No function

Isolate unit from mains

Service 110

SC pump

Unit without function

Service 120

Care pump, level electrode

Unit without function

V03 EN, SelfCooking Center

Care pump faulty or does not fill enough care solution into steam

generator;

— After filling of the care solution into the steam generator the CDS

sensor sends too many pulses until the level electrode recog-

nises water.

Check if the hose from the care pump outlet is not kinked;

— Cleanjet finishes without care phase;

— Reset error by successful completing rinse program;

— Solenoid valve Y3 defective or moistening valve blocked; CDS

does not send any pulses;

— Reset error by successful completing rinse program;

— Solenoid Y4 Care defective or hose to care container blocked or

kinked; CDS does not send any pulses;

— Reset error by successful completing rinse program;

— CDS sensor sends always pulses; Solenoid Y1, Y3 or Y4 is

passing water

— Reset error by successful completing ABORT program;

— No temperature raise during recognised by B1 during steaming

time while being in Cleanjet phase

— Reset error by successful B1 temperature measuring during next

Cleanjet;

Power remained present on fan motor when unit was switched off

last. Main contactor didn’t disengage or ON/OFF switch on pcb

defective;

To clear error message: isolate unit from power, switch pcb OFF,

change contactor or pcb, reconnect to power (wait 1 minute),

switch pcb ON.

— Malfunction of SC pump during the time when Care solution was

inside the steam generator,

— Reset error by successful completing ABORT program;

— After operating care pump M12 (filling care solution into steam

generator) and topping up with water the level electrode does not

recognise water;

— Care Pump M12 or level electrode defective;

— Display only after twice starting filling solenoid Y1 yet no water is

detected;

— Reset error by successful completing ABORT program;

— 68 —

Rational Oven Error Code | Wiring Diagram | Software Up-Date | Service Manual | Spare Parts.

Descaling program SCC units

Hint:
– As of software version 04-01-02 the key for starting the descaling program is only visible from the
moment the CDS display shows at least 7 red bars.
– Descaling program can nor be started as long as cooking process is active.
– At the end of the descaling process automatically the new filling volume of the steam generator will
be evaluated.
Attention:
Safety instruction on the descaler container must be observed.

The program runs with the following steps:

1. Step „Check cabinet temperature“
If cabinet temperature is above 40°C, automatically the Cool Down function is started until temperature
is below 40°C. If cabinet temperature was already below 40°C, automatically the next step is started.

2. Step “Rinse steam generator”

Steam generator will be emtied, filled and ones again emtied. water of the second pumping process remains in the quenching box.

3. Step “Fill in descaler” Attention: Fill in descaler ONLY via steam pipe!

On the second display the calculated volume of descaler detergent is shown. descaler must be filled in and the end of the Filling

procedure must be confirmed key finish filling.

4. Step „Rinse cabinet“

 after descaler was filled in the unit ask for the close the door.

As soon as the door was closed, the cabinet will be rinsed with the water of the quenching box and “cooking cabinet being rinsed” is shown

5. Step „Soaking phase of descaler

Now „wait soaking phase“ is shown.the duration of the soaking phase predefined the program.

6. Step „Clean quenching box

After the soaking phase in the steam generator the descaler is pumped into the quenching box and remains there for another

20 minutes. In the display „wait soaking phase“ is shown.

7. Step „Rinse steam generator

after soaking phase in the quenching box is finished the ball valve is open and descaler drained and once again emptied.now steam generator will be filled  and emptied three time with the fourth filling the volume will be determined.in the display wait soaking phase is sown.

8. Step “Steam mode

Now automatically steam mode with running of time of 15 minutes is started. After the 15 minutes have elapsed water of the steam generator will pumped into the quenching box. CleanJet pump will be activated and interior cabinet will be cleaned. During this period „cooking cabinet being rinsed“ is shown.

9. Step Indication of remaining calcification
is shown. If 4 bars or more are left in the CDS display then “repeat descaling?” is shown. If this key is touched then the descaling process will be started once more, or by touching the return key the process is closed

Interrupting descaling program

a) Interrupting program before descaler was filled in:
Program can be stopped by touching the return key

b) Interrupting program as of the moment descaler was filled in:
– Switch unit off and on again
– Now key “Interrupt descaling” is shown.
This key must be pressed within 4 seconds. Otherwise the program
continuous from the point where it was stopped
– If the key is pressed within 4 seconds, then an interrupt program is started. The running time of this program is approximately

1 hour.

Gas Error Logger Burner Control 0 ( Gas Machine how to Troubleshooting )
Indication of the last 14 gas-failures, generated by ignition box top)
Gas Error Logger Burner Control 1 Indication of the last 14 gas-failures, generated by ignition box bottom)
act: 0 2006-07-25 17:29:47
1: 30 2006-07-12 11:06:27
2: EGE 1005 ( Wildcards from 1-13 for additional gas failures. EGE 1005 is indicated in case there was no failure)
Example under item 1 Failure 30 (wrong or no rev‘s of gas blower steam) occurred 12.07.2006 at 11.06:27 h.
feedback signal from blower motor to ingition box missing; Indication of ignition box error messages (1-32 is shown to the operator as „Reset“):
1 Hot air or Steam no gas, gas valve or electrode defective 14 Hot air gas valve control, change ignition box
19 Hot air no  flame because  flame current is too low check burner setting,  flame current, ignition cable and plug
20 Hot air wrong or no rpm signal from gas blower check gas blower, power supply gas blower and control harness
of gas blower
22 Hot air no  flame after 5 ignition sequences no gas, gas valve or electrode defective
24 Steam gas valve controll, change ignition box
29 Steam no  flame because  flame current is too low check burner setting,  flame current, ignition cable and plug
30 Steam wrong or no rpm signal from gas blower check gas blower, power supply gas blower and control harness
of gas blower
32 Steam no  flame after 5 ignition sequences no gas, gas valve or electrode defective Possible failure in case of „Service 32“
33, 36 Change ignition box
35 Check frequency of main
39 Hot air Check burner setting, ignition electrode and distance, and  flame current
40 Hot air Check ignition cable
42 Steam Check burner setting, ignition electrode and distance, and  flame current
43 Steam Check ignition cable Is shown on display „Change polarity“
34 Change polarity of mains All other numbers (2-13, 15-18, 21, 23, 25-28, 31): change ignition box.