It’s as simple as flipping a switch!
We purchased a 22KW Home Standby Generator from Generac a few years ago, and it remains one of the best investments we’ve made in our house. With three young children in an area that is prone to losing power, keeping all the lights on and devices powered 24/7 is essential!
One day – about a year after being installed and running smoothly with no issues – our generator shut down and gave a 2800 error code. If this happens to you, there is nothing wrong with your generator and no need to get it serviced! All that happened is one of the auxiliary shutdown switches was accidentally flipped to the off position.
Here I’ll show you what triggers the Error Code 2800 and how to fix it so you can get your generator up and running again!
Generac 22kW Home Standby Generator with Wi-Fi and Transfer Switch
What Error Code 2800 Looks Like in the Mobile Link App
I was first alerted to the fact that the generator was no longer running via Generac’s Mobile Link app. After opening the app, I saw the following error message:
If you click on the Status History page of the app, you’ll see additional error messages and that the generator was shut down due to an alarm:
What Error Code 2800 Looks Like on a Generac Generator
Heading outside to inspect the generator, I saw that the red “Alarm” light was on:
If you open your generator, the control panel interface will cycle between two error messages. The first indicates that the generator has stopped due to an alarm from Error Code 2800:
The second error message indicates that the generator has stopped due to the Auxiliary Shutdown Switch:
Reading these error messages (particularly since the Mobile Link app indicates that the generator needs to be serviced), you might think that something seriously wrong has happened to your generator. Rest assured, your generator is fine! Here’s how to fix Error Code 2800.
Step 1: Locate the Auxiliary Shutdown Switch on the back of the generator
Error Code 2800 is caused by flipping the Auxiliary Shutdown Switch (which probably happened accidentally). All models of Generac generators have an Auxiliary Shutdown Switch on the exterior of the generator. Our model’s Auxiliary Shutdown Switch is located on the back of the generator, in the top-left corner:
The generator will not start if the Auxiliary Shutdown Switch is OPEN (O symbol), and will instead activate an “Auxiliary Shutdown” alarm. So, the generator won’t run and will trigger error code E2800 if the O symbol of the Auxiliary Shutdown Switch is pressed down.
In the below picture, I have zoomed in on the Auxiliary Shutdown Switch in the OPEN (O symbol) position so you can see it more clearly:
Most commonly, the Auxiliary Shutdown Switch on the back of the generator is the culprit behind Error Code 2800. And sure enough, somehow this switch had accidentally been pressed on our generator!
Step 2: Set the Auxiliary Shutdown Switch to the CLOSED (| symbol) position
To fix error code 2800, simply set the Auxiliary Shutdown Switch to the CLOSED (I symbol) position by pressing down the CLOSED (| symbol) side of the switch:
Step 3: If applicable, check the Auxiliary Shutdown Switch on the inside of the generator
Generac generators that are 16 kW or greater have a secondary Auxiliary Shutdown Switch located inside the generator – right by the control panel interface. I’ve highlighted this additional switch in the below picture as an FYI:
It is highly unlikely that this interior Auxiliary Shutdown Switch would have been accidentally flipped since it located under the lid of the generator (and hopefully you lock the lid of your generator too!). Still, it never hurts to check this switch too.
Step 4: Clear the Error Code from the Control Panel
After ensuring that one or both Auxiliary Shutdown Switches are pressed down to the CLOSED (| symbol) position, the control panel interface will prompt you to clear the alarm/error with the following message:
It’s as simple as the message indicates! Simply press the red “OFF” button on the control panel, then press the gray “ENTER” button.
Finally, press the green “AUTO” button to set the generator in fully automatic system operation (allows the generator to automatically start and exercises the generator according to the exercise timer).
The control panel should look like this:
(Optional) Step 5: Run the generator in Manual mode
While you’re technically done and the problem has been solved, I like to run the generator in Manual mode for a minute or two. Especially if the generator has not been running or following its exercise schedule for a little while, it’s always good to make sure it cranks and starts up.
Simply press the blue MANUAL button, and the generator should crank up and run. The control panel will indicate it is in Manual operation with a blue LED light:
Assuming the generator starts up fine, let it run for a minute or two.
(Optional) Step 6: Return the generator to Auto operation
Whenever you’re ready, you can place the generator back into fully automatic system operation by pressing the green “AUTO” button. The generator will stop running and the control panel will look like this again:
How to Prevent Error Code 2800
Children using the generator for a game of hide-and-seek might brush up against and flip the Auxiliary Shutdown Switch. Or a bouncing ball might accidentally flip the switch. In our case, a leaf blower accidentally aimed too high was enough to flip the Auxiliary Shutdown Switch!
I’ll be honest, I was quite surprised by how easily the exterior Auxiliary Shutdown Switch can be flipped. I hope that future models of Generac generators either require more pressure and force to flip this switch, or have an enclosure around the switch to prevent accidental presses.
Until then, there’s little that can be done to prevent this error from happening. Knowledge is your best bet here. Just be aware of anything going on around your generator and know that the Auxiliary Shutdown Switch can be easily flipped.
What if the Auxiliary Shutdown Switch is in the CLOSED (| symbol) Position?
If the Auxiliary Shutdown Switch is already in the CLOSED (| symbol) position, then the switch is either faulty or the wiring to the switch is faulty. In this case, you’ll need to call a professional to get the generator serviced.
More Information on the Auxiliary Shutdown Switch
According to the owner’s manual, all Generac generators are equipped with an external means of shutting down the generator via an auxiliary shutdown switch. This switch is located on the exterior of the generator back panel, and shuts down the generator and disables restarts:
Generac generators that are 16 kW or greater have a secondary Auxiliary Shutdown Switch located inside the generator – right by the control panel interface:
If an auxiliary shutdown switch is activated, the control panel interface displays an “Auxiliary Shutdown” alarm and the red LED “Alarm” light illuminates. The generator will not start if either switch is OPEN (O).
To clear this condition, set the switch or switches to CLOSED (I).
Clear the alarm by pressing the OFF mode button, and then ENTER. The generator can then be placed back in AUTO or MANUAL mode.
How To Find a Generac Generator’s Product Manual
You can find specifications, product/owner’s manuals, and more information for your Generac generator via Generac’s Product Support Lookup page.
Either enter a Model Number/Serial Number, or browse by Product Category (in our case, Standby Generators -> Guardian Series -> 22 kW).
Did this guide help you fix your Generac Generator with Error Code 2800? Have any other Generac generator issues you need help with? Let me know in the comments below!
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Chris
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I’m being flooded with questions about the 2800 shutdown fault code for Air Cooled Generac generators… This code is VERY simple to fix. The new Generac WiFi products that are shipping come standard with the Aux Shutdown kits installed. The 15kW are larger units have 2 switches, while 14kW and lower use just 1 switch. The switches are located one on the very back of the unit just below the roof line near the electrical connections and the other is located INSIDE the generator on the black firewall panel in the upper right corner. These MUST BOTH be on for the unit to run. If either or both are turned off, the unit will show that alarm and not run. If either switch is turned off during the unit actually running, it will shut down. These are for emergency personnel in case there is a problem where the unit must be safely and quickly shutdown. There is a section in the owner’s manual that will explain all about them as well.
Generac tech for over 12 years. I’m here to help!
«The only source of knowledge is experience» -Albert Einstein
Looking for Generac parts? Gentek Power offers the full line of Generac replacement parts! Shop Gentek Power Generac Parts
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Klungs19
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Is there any other reason for the 2800 code besides those two switches or one of them being off? Both switches were on I shut them both off turned them back on then cleared the code and it went back into automatic.
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Chris
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Klungs19 wrote: ↑
Mon Dec 24, 2018 9:46 pm
Is there any other reason for the 2800 code besides those two switches or one of them being off? Both switches were on I shut them both off turned them back on then cleared the code and it went back into automatic.
Basically, if any part of that series circuit is broken, whether by a switch or loose wire or some other issue, the 2800 alarm fault will show up for the Auxiliary Shutdown.
It may have been that a switch was partially in ‘Off’ or maybe that it had a strange spot on the contacts inside. I’d just keep an eye on it. They really have no need to ever be turned off again.
Generac tech for over 12 years. I’m here to help!
«The only source of knowledge is experience» -Albert Einstein
Looking for Generac parts? Gentek Power offers the full line of Generac replacement parts! Shop Gentek Power Generac Parts
A list of my favorite Generator & Electrical Tools! https://www.amazon.com/shop/gentek_power
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UPS
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Klungs19 wrote: ↑
Wed Dec 26, 2018 9:55 pm
Thanks for the help great site!
or neighborhood kids with too much free time — or neighbor who doesn’t like to hear generator running…..
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Rick444
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Thanks. That fixed the problem. A little black on/off button on the back of the unit.
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Chris
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Rick444 wrote: ↑
Thu Apr 18, 2019 7:35 pm
Thanks. That fixed the problem. A little black on/off button on the back of the unit.
Glad to hear this helped!
Generac tech for over 12 years. I’m here to help!
«The only source of knowledge is experience» -Albert Einstein
Looking for Generac parts? Gentek Power offers the full line of Generac replacement parts! Shop Gentek Power Generac Parts
A list of my favorite Generator & Electrical Tools! https://www.amazon.com/shop/gentek_power
murat писал(а):Р 2800 и Р 0700
P0700 is the code which notifies drivers of the occurrence of TCM related problem indirectly as illuminating engine check lamp. If this code is recorded, Do not check engine but auto transaxle.
ECM and TCM give and take various data through CAN communication each other. When the problem of TCM related sensor(input speed sensor, output speed sensor, inhibiter switch, etc.) and actuators(transaxle solenoid valve, etc.) occurs, gear is fixed at 3rd gear position. However, there is no alarming device such as «TCM warning lamp» which notifies drivers of the occurrence of TCM related problem.
Therefore if power train related problem happens, Engine check lamp turns ON to let drivers recognize the occurrence of power train system(A/T system) related problem.
P2800 Transmission Range Sensor «B» Circuit (PRNDL Input)
Эти ошибки — следствие исчезновения «резвости». Если по системе управления двигателем других ошибок действительно нет, начать надо с простого — замены воздушного и топливного фильтра, проверки подсоса воздуха в топливную систему и т.д.
Author
Topic: Ошибка Р2800 и Р0128 (Read 4392 times)
Пару месяцев назад загорелся Check.. потом сам погас… никаких изменений по машине не наблюдал.. потом загораться стал чаще… Приобрел сканер OBD2, которым их сбрасываю. на нем выдает ошибки 2800 и 0128… при загорании ошибки постоянно молотит вентилятор.. рабочую температуру двигателя сканер показывает 77 градусов.. стрелка температуры на панели до середины не доходит никогда…
p.s. ошибка загорается когда еду по трассе со скоростью около 90 км/ч.. в городе как-то не наблюдал чтобы загоралась…
и еще вопрос про вентилятор… когда заведу холодную машину, то через минуту-две вентилятор начинает работать (недолго).. так должно быть?
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Saturn VUE 07 2.2
Скорее всего умер датчик температуры. Но, поскольку все данные читает ЕСМ, то не исключен и этот вариант, что ЕСМ приказал долго жить.
Еще не мешает проверить термостат
Вентилятор должен
включаться только при включенном кондее или при достижении темп. критической точки
« Last Edit: 23-10-2013, 13:12:49 by sergey »
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Скорее всего умер датчик температуры. Но, поскольку все данные читает ЕСМ, то не исключен и этот вариант, что ЕСМ приказал долго жить.
Еще не мешает проверить термостат
Вентилятор должен
включаться только при включенном кондее или при достижении темп. критической точки
ведь температуру на панели показывает.. значит датчик работает? или я что-то не допонимаю…
ЕСМ это что?
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Saturn VUE 07 2.2
ЕСМ- это мозги двигателя. На панели показывается температура, трансформированная через ЕСМ. Датчик темп, напрямую не связан с приборной панелью
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кстати про кондей.. у меня всегда после того как заглушил машину вытекает много воды.. даже если не пользовался кондеем а наоборот печка работала.. и еще.. если не нажимать кнопку кондея, а просто до упора влево выкрутить регулировку температуры и направить воздух на обдув лобового стекла, то идет морозный воздух на стекло.. это проверено летом.. так ведь тоже быть не должно
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Saturn VUE 07 2.2
и если это все таки не мозги (надеюсь), то кроме датчика температуры и термостата ничего быть не может?
просто знакомый говорил у него точно такие же симптомы были при неисправной лямбде (только номер ошибки он не узнавал)
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Saturn VUE 07 2.2
кстати про кондей.. у меня всегда после того как заглушил машину вытекает много воды.. даже если не пользовался кондеем а наоборот печка работала.. и еще.. если не нажимать кнопку кондея, а просто до упора влево выкрутить регулировку температуры и направить воздух на обдув лобового стекла, то идет морозный воздух на стекло.. это проверено летом.. так ведь тоже быть не должно
ЕЁ- МОЁ. Вот так и должно быть.
Из глушака то же должна вытекать вода.
Простите, а у вас до этого, так сказать Сатурна, была какая ни будь другая машина?
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и если это все таки не мозги (надеюсь), то кроме датчика температуры и термостата ничего быть не может?
просто знакомый говорил у него точно такие же симптомы были при неисправной лямбде (только номер ошибки он не узнавал)
На лямбду забей, таких симптомов от её кончины не будет
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ЕЁ- МОЁ. Вот так и должно быть.
Из глушака то же должна вытекать вода.
Простите, а у вас до этого, так сказать Сатурна, была какая ни будь другая машина?
[/quote]
рено лагуна 2004..
так вот там если кондеем не пользовался то вода не вытекала.. а если и пользовался, то не в таких количествах…
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Saturn VUE 07 2.2
От куда вытекает вода? Из глушака???
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От куда вытекает вода? Из глушака???
в р-не двигателя.. изкондея ведь там должна вытекать
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Saturn VUE 07 2.2
От куда вытекает вода? Из глушака???
в р-не двигателя.. изкондея ведь там должна вытекать
Если обдув на стекло, то да. Если кондей включен принудительно, то ДА!
Дальше пошел умывать руки. Шерстите форум.
Удачи!
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Если обдув на стекло, то да. Если кондей включен принудительно, то ДА!
Дальше пошел умывать руки. Шерстите форум.
Удачи!
[/quote]
просто если целый день ездил с печкой, то отчего льется вода… зимой при -25 будет вообще непонятно что твориться…
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Saturn VUE 07 2.2
Когда перестанет течь, тогда и начинайте переживать, пока у вас все гуд.
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Переживать нужно по-поводу � 0128
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Generac Error Code 2800 is a very common error code. This error code can be fixed so easily. Fixing it is as easy as flipping a switch. We purchased a 22KW Home Standby Generator from Generac a few years ago, and till now this is considered as one of the best Investments. You must have to be aware if your generator is facing any issue. such as power loss, all the lights off, delay some urgent work and cause so many misshappenings.
When suddenly your generator stops working or shutdown that means this might be possible that our generator is facing a 2800 error board. This can be solved just by servicing, or you can use the step by step guide below. One of the main reasons for the error is that auxiliary shutdown switches were accidentally flipped to the off position.
In this article I am going to share how to fix generic error code 2800 and how it looks like in your mobile link app so let’s get started without wasting any time.
Table of Contents
What does generac error code 2800 Looks Like in the Mobile Link App
When you open the mobile app, you will see some error messages in the Generac’s Mobile Link app. Or you will be allerted by the notification that your generator is no longer running.
when you click on the status history page of the app, here you will see so many additional error messages and that generator is shut down due to an alarm
How to fix generac error code 2800
While inspecting the generator you will see a red alarm light on: but when you open the generator the control panel interface will cycle between two error messages. These two iron messages have different meanings such as one of these shows that the generator has stopped working due to the auxiliary shutdown switch and the other one indicates that the working of the generator has been stopped due to the alarm from error code 2800. Which means you need to take service to your generator or turn the auxiliary shutdown switch on for that you can follow the guide discussed below. But while using this you need to be very careful so follow this guide very carefully let’s get started.
Step 1: Locate the Auxiliary Shutdown Switch on the back of the generator
Flipping the Auxiliary Shutdown Switch results in Error Code 2800. (which probably happened accidentally). An Auxiliary Shutdown Switch is located on the exterior of every Generac generator model. The Auxiliary Shutdown Switch for our model is situated in the upper-left corner of the generator’s back:
If the Auxiliary Shutdown Switch is OPEN (O symbol), the generator won’t start and a “Auxiliary Shutdown” alert will sound instead. Therefore, if the O symbol of the Auxiliary Shutdown Switch is depressed, the generator won’t operate and will produce error code E2800. To help you view the Auxiliary Shutdown Switch in the OPEN (O symbol) position more clearly, I’ve zoomed in on it in the image below:
Error Code 2800 is most frequently caused by the Auxiliary Shutdown Switch on the back of the generator. And sure enough, our generator’s switch had unintentionally been pressed.
Step 2: Set the Auxiliary Shutdown Switch to the CLOSED (| symbol) position
Set the Auxiliary Shutdown Switch to the CLOSED (I symbol) position by depressing the CLOSED (| symbol) side of the switch to resolve error code 2800:
Step 3: If applicable, check the Auxiliary Shutdown Switch on the inside of the generator
A supplementary Auxiliary Shutdown Switch is found within Generac generators that are 16 kW or more, close to the control panel interface. For your information, I’ve highlighted this extra switch in the image below:
Since the internal Auxiliary Shutdown Switch is hidden behind the generator’s lid (and hopefully you’ve locked the lid too! ), it is extremely improbable that it was accidently flipped. Nevertheless, it never hurts to double-check this switch.
Step 4: Clear the generac error code 2800 from the Control Panel
The control panel interface will ask you to remove the alarm/error after confirming that one or both auxiliary shutdown switches are depressed all the way down to the CLOSED (| symbol) position: It’s as straightforward as the message suggests! Simply push the grey “ENTER” button after pressing the red “OFF” button on the control panel.
Finally, activate the generator’s completely automatic system by pressing the green “AUTO” button (allows the generator to automatically start and exercises the generator according to the exercise timer).
Optional) Step 5: Run the generator in Manual mode
Although you’ve finished and the issue has been resolved technically, I like to run the generator in manual mode for a little while. Always check to see if the generator cranks and starts up, especially if it hasn’t been running or keeping up with its training routine for a long.
All you have to do to start the generator is push the blue MANUAL button. A blue LED light on the control panel will indicate manual operation: If the generator starts up without a hitch, let it run for a few minutes.
(Optional) Step 6: Return the generator to Auto operation
By pushing the green “AUTO” button when you’re prepared, you can restart the generator’s fully automatic system functioning.
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FAQs:
Q1: What does generac error code 2800 mean?
Flipping the Auxiliary Shutdown Switch results in Error Code 2800. (which probably happened accidentally). An Auxiliary Shutdown Switch is located on the exterior of every Generac generator model.
Q2: How do you fix an over crank generator?
Resetting the controller and restarting your device can solve the problem if your home standby is displaying this error code. There is a problem if, after two automatic attempts, your device still won’t start. Verify that your generator’s gas is turned on.
Q3: What would make the over crank come on a Generac generator?
The overcrank alert indicates that although the generator is trying to start and ramp up to its normal speed, it is not actually beginning. Weak batteries, gas supply problems, empty propane tanks, and improperly installed generators are a few of the causes of this overcrank problem.
Q4: What does red light on Generac generator mean?
A Generac unit’s red light on the side indicates that it won’t operate during a power outage for whatever cause. In your case, it was just that the unit was off, but it was still attempting to indicate that it wouldn’t have ran in the first place.