I'm having trouble finding the problem with my Dometic Penguin II AC. The fan starts and runs about 12 seconds then the compressor kicks in, runs about 3 sec and then both shut off. Repeats every 1-2 minutes.
I switched boards with the another AC unit and still not working. The other unit continued to work with no problems.
Called out a mobile RV Tech and he got dometic on the phone and ran through the recommended tests and found nothing. They had him bypass the board by connecting 3 wires together to make it run continuous. It ran and cooled. Dometic said it must be the board or thermostat. Doesn't sound right to me since I've already switched the boards and the other 2 ACs are working fine with same thermostat. Any suggestions.