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