Dometic RM3863 refrigerator
Having problems with 3 way fridge. Currently on A/C power and with auto button depressed it cools great for a couple of days then switches to gas and then malfunctions. When auto button is up runs for...
Forum Discussion
In auto on electric and then swaps to gas........that's due to loss of AC power
Runs on gas then 'check' light..that's due to loss of flame/won't light
Doesn't cool on DC......that could be a bad DC electric heat element
BUT ALL problems could be faulty DC power.......
Good 12V DC power is needed. Doesn't take much corrosion/bad connections to stop 12V DC.
Check for obvious bad connections on lower board.
Check ground connections clean & tight
Lower control board/module is the main power board.
Pull it and have it checked at an RV repair shop on a bench board tester
Runs on gas then 'check' light..that's due to loss of flame/won't light
Doesn't cool on DC......that could be a bad DC electric heat element
BUT ALL problems could be faulty DC power.......
Good 12V DC power is needed. Doesn't take much corrosion/bad connections to stop 12V DC.
Check for obvious bad connections on lower board.
Check ground connections clean & tight
Lower control board/module is the main power board.
Pull it and have it checked at an RV repair shop on a bench board tester
