Webasto bunk

Could be it is not getting the go signal just cause something is sensing it's so hot out?

Mine's a 2014, works like a champ, but you know how eggheads like to improve on things that don't need improvement.

 

Is it doing the light flashing thing?

 

Is it connected to an APU? My Tripac has the bunk heater wiring and fuse at the APU's main board.

Get a multimeter and check power at the heater.

 

Mine wont run on volvo until i pull tractor parking brake. Then its goes.

 

Never heard of that set up. Interesting. I guess it's a good idea for safety but mine doesn't have it. I've left mine on a couple of times accidentally
after I got rolling.

 

Fuses are under the bunk . Check the connections to and from the battery first . It might just be loose or corroded harness. The harness do go bad sometimes so volt test it on the webasto end and make sure you are getting enough juice.