Dometic Rooftop RV Air Conditioner
Problem for Dometic Rooftop RV Air Conditioner

I have a penguin rooftop ducted system with analog




By where_rv on Jul 03, 2009

" "
I have a penguin rooftop ducted system with analog thermostat, the thermostat board went bad, so I got a refurbed one, installed the refurbed one, but when I switched it on , no leds, nothing after about an hour the system tried to start, but didn't. No leds lit. I switched to High fan only, and same thing. Whats up? there is 12v to the board.

Best Solution

posted on Jul 03, 2009
Helpful)

jeffmyers_20

Rank: Guru  Air Conditioners  Expert
Rating: 96%, 66 votes
If you have no leds, then you have a power supply problem. I am assuming that you have the Dometic Electronic Control Thermostat with the ribbon cable connection. Check for 12V power at the control board in the air conditioner, Red 12V+ and Black 12V-. Make sure polarity is correct. If you have power there then check the number 1 and number 10 pins on the ribbon. The voltage should be the same. If they are not, then you have a bad control board, not thermostat.

Hope this helps,

Jeff

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