2006 Intl CCD - Atwood furnace

[ostream]

I have a Atwood 8531-IV-DCLP furnace installed my '06 CCD. After de-winterizing this weekend for a late winter rally, I turned on the thermostat, but the fan would blow (with occaisional clicks) for 70 seconds, then shut off (no heat). This happened for 7 or 8 attempts, then it actually came on and stayed on. Lucky as the temp dropped to mid-thirties overnight.

The heater worked flawlessly the rest of the weekend with no issues. Now at home, I decided to check it out again. Same issue - the furnace comes on intermittently. Mostly not.

Any ideas as to what is failing? Does repair require a RV Tech, HVAC Tech, Airstream service or possibly something that can be handled by moderately skilled and super motivated owner?

[ostream]

So, I took the control board into a local RV service center and they tested the board. Everything checked out ok. I was sort of hoping that it was a user replaceable component like the board, but unfortunately now it's looking like a full service appointment.

Upon returning home, I re-installed the board and turned on the thermostat - furnace fired right up!

Back to the beginning. Sometimes it works; sometimes it doesn't.

Urgh - hate these intermittent problems!!!

[dwightdi]

It could be your voltage is a little low. Check the voltage at the input to the board and also check the ground while you are at it. It will likely work better when it is plugged into 110 than just running on battery, if the battery is the problem.

[ostream]

Thanks for the input!

I unplugged & plugged the connectors repeatedly to freshen the contacts per the advice of experts. The unit now comes on every time. Next I'll hit it with some electrical contact spray and test on DC.

Also plan on picking up a Dinosaur UIB-S from bestconverter.com. Last thing I need is another failure on a cold night!

Cheers