I was having computer issues a few months back and during one of the R&R's the heater vanished, ie no nada mas, the display went blank...on another R&R, it re-appeared, next time, it left for good...Anyone have a clue how to retrieve my heater...as winter approaches, it suddenly seems a bit more important...Any helpful advice, thoughts, intuitions, would be greatly appreciated.
Thanks, onewingman

 

Start testing, work from the a/c control unit out, may need to find some wiring information, possibly in the Rave. Sounds like a loose/shorted wire or a bad control unit.

 

Thanks for a starting point...it was a bit chill this morning, so, I played around with it...I didn't take notes...I was driving, but it kinda works...the temp buttons work on both banks, fan on D/S, as long as I didn't attempt to adjust speed, shuts off display if adjusted. So, I have fan on LOW, from A/C to heat...with corresponding temps.
Maybe, it's in the jacks to the BCU...
Thanks again