We have a Eberspacher Airtronic M Gas Furnace, running on solid 12 volt batteries, that generates an “Err” on the display, and shuts off.
The heater works. It will go through the full startup process and run for a few minutes before coming to an abrupt stop, and “Err” message.
Normally when I turn it off, it goes through a shutdown period where it burns off remaining fuel and shuts down.
We got an error fault 12 with the manual indicating a sensor overheating condition.
- There could be blockage in exhaust port,
- or possibly reduced air flow on the input side.
- The problem could also be with the sensor itself. We are using the internal sensor. An optional external sensor can also be installed.
- One use pointed out that these devices are light duty with 600 hours total life.
Press the Ok button to light the screen. The temperature will display.
Long press simultaneously both arrows (Temp decrease and increase buttons). “1_1” will appear on the display.
Press Ok to display the Active Fault “AF” followed by the two digit fault code number. Press Ok to go back to “1_1”.
Press the “Temp(Increase)” button once to retrieve the other stored errors. When the display shows “1_2” press the OK button and navigate through the different Fault Numbers “Fn” with the arrow keys. Write down the codes for future reference. Press the Ok button to return to the previous screen (“1_2”)
Clearing Fault Codes
Press the “Temp(Increase)” when the display shows “1_3” press the OK button button once, the display will read “Del”. Press Ok again and the errors will be erased. To go back to the normal menu wait until the screen goes blank.