Auxiliary Shutdown Code 2800
This error indicates that one or both of the auxiliary shutdown switches is in the OFF position. Generators with a single cylinder engine will have a switch on the back of the generator, and generators with a two cylinder engine will have a second shutdown switch inside the generator housing on the firewall panel. Both of these switches must be on or else the generator will not run.
If this error code continues to appear after following the instructions in this article, a service visit from your local dealer may be required: Where Can I Find a Generac Dealer in the U.S. Or Canada?
Refer to your generator owner's manual for more information about error codes and appropriate troubleshooting steps:
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The Generator will display a red light on the 3 light display on the side of the generator. The controller will also be set to the OFF position and display alternating messages on the controller screen with the text STOPPED - ALARM / ERROR CODE 2800 and STOPPED - ALARM / AUXILIARY SHUTDOWN.
The E2800 error code is an alarm code that is triggered when a generator is shut down either through the Emergency Stop button or, more commonly, through the use of the Auxiliary Shutdown switch. The Estop and Auxiliary Shut Down Switches that are located in various locations on Generac generators are emergency shut-down switches that were added to all air-cooled home standby generators around 2017 due to Fire Safety regulations that were implemented by the National Fire Protection Agency (NFPA). These are switches that are intentionally made easily accessible, that can be used by fire department personnel in the event of a fire emergency
When flipped, the switches will prevent the generator from running which can help prevent further complications in the event of an emergency. When these switches are triggered, Mobile Link notifies the generator owner that the switch has been triggered and does this by displaying the same E2800 error code that is displayed on the generator itself.
Unfortunately, due to the required intentional placement of these switches in highly accessible areas, occasionally, these switches may be bumped or brushed accidentally, causing an unintentional triggering of the auxiliary shutdown and E2800 error code.
Note: Some generator service providers may intentionally trip these switches to prevent generators that are awaiting service from running. If you suspect this to be the case, please contact your generator service provider to ensure the switch has not been intentionally triggered.
The auxiliary shutdown switch is intentionally located in an easy-to-access location to ensure Fire protection individuals are able to locate and access these switches in emergency situations. The switches are small, black, rubber-coated switches that toggle vertically and have an I (closed) on the top of the switch and an O (open) on the bottom. Depending on its engine type (single or two cylinder), the generator may have one (1) or two (2) switches.
Most Air-Cooled Generac generators manufactured after 2017 would have an auxiliary shutdown switch located on the backside of the generator.
All two cylinder Air-cooled Generac generators manufactured after 2017 would have an additional auxiliary shutdown switch located on the inside panel of the generator, near the Control Panel.
The E2800 error code is triggered when the Aux Shutdown switch is toggled so that the O or open side of the switch is depressed and the I or open side of the switch is raised.
50 Hz generators
For 50 Hz model generators, the switch is on the side of gen near the LED lights. To resolve the error 2800 code, you will need to pull out the e-stop and then press OFF and then ENTER buttons on the control panel to clear alarm.
1. Locate the external switch on the back side of the generator.
2. Ensure the Switch is in the I or Closed position.
Note: The top of the switch, which is the I or "closed" position for the switch, should be "pressed." This is the equivalent of flipping the switch "up." If the Switch is flipped "down", putting the switch in the O or "open" position, the E2800 Error is triggered and the generator will not run.
3. If applicable, locate the internal switch on the inside panel of the generator (for models with two cylinder engines).
If you have a 50 Hz model unit, you will need to pull out the e-stop (item J shown below), then skip to step 5.4. Ensure the Switch is in the I or Closed position.
Note: The top of the switch, which is the I or "closed" position for the switch, should be "pressed." This is the equivalent of flipping the switch "up." If the Switch is flipped "down", putting the switch in the O or "open" position, the E2800 Error is triggered and the generator will not run.
5. Go to the front of the generator, lift the lid, and locate the Controller on the top right side of the generator. After verifying and resetting the Auxiliary Shutdown switches, the controller will prompt the user to clear the alarm with the following message.
6. As instructed by the controller display, in order, press the red OFF button, then the ENTER button.
7. 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).
8. The generator is now ready to run in the event of a power outage.
Still seeing the 2800 error?
This issue may require investigation by an authorized service dealer. See this article to select the appropriate local dealer for your system: How Can I Find a Generac Service Dealer in My Area? 
