webasto bunk heater problem

Are you noticing some smoke from the exhaust when you try to use it? Are you hearing the clicking sound from the fuel pump?

I have one that did something similar because it wasn't igniting at all. I'd see the smoke, hear the clicking and see fuel dripping at the exhaust.

Wound up replacing the igniter and screen assembly. They can get coked up after some time.

 

I kinda had a similar problem with mine. Turn dial on, green light would come on and stay on, but no fan nor fuel pump. No codes. Took the unit out of the truck and noticed that the fuel pump harness coming out of the intake port had rubbed through. I think that was my fuel pump problem. My no fan problem took a new harness.

 

I have that problem sometimes. If I cover the intake or outlet with my Hand and let pressure build up for a second, and repeat a few times ,it starts burning hot... Sometimes.

 

Same problem here. Anyone has any ideas?

 

Check intake hose/under bunk where it sucks in cold air into heater. Make sure intake is clean, dirt build up will prevent it from working right.

 

Air bubbles in the fuel filter? They can have trouble if the filter isn't horizontally level.