Hi seeking some help on my webasto airtop 2000. This is mounted in a van not a
boat but it seemed there was a lot of webasto users in this forum and I thought some dialog might help others located here. For a while my
heater was running great. Then it started throwing the F0-3 code for low voltage and would only start when I had the
engine running. When it was throwing that code the
fuel pump would start up, the fan would blow but then the code would display and it seemed to go into a cool down/turn off procedure.
Currently it is no longer doing even this. It is not throwing codes and when I turn it on it only sounds like some relays are attempting to work-light clicking sounds. The
fuel pump is not coming on the fan is also not coming on. No codes
I have tried two different types of control switches(the original 7day program timer and the rotating knob type) still no codes. I have a onboard
charger on my van which has been plugged in and the
batteries are full best I can tell. I have checked the voltage at the
heater unit and it seems good all though I can give specifics if needed. I have cleared the heater intake.
At this point I'm at a bit of a loss. I'm wondering about replacing the circuit boards and then a
cleaning and replacing the wick/element. I just want to avoid randomly replacing
parts. Any next steps people can suggest? Thanks in advance
Sam