Dometic A/C glitch
Hi! I have a 2013 Passport with a Dometic rooftop ducted A/C and Dometic single zone LCD thermostat. Yesterday it was working fine. At night, we like to leave the thermostat fan setting on Lo...
Forum Discussion
Learjet wrote:dougrainer wrote:
I would suspect a BAD lo speed on the fan motor(overheating the windings). But, it is easy to replace the tstat. I doubt the upper board is at fault. I doubt a reset will fix this type problem. Resets for operation problems rarely do on Dometic CCC systems. A quick test is to swap the Lo and HI fan speed wires and see if the fan fails when putting it to HI Fan(which will energize the LO speed wiring on the motor). If it fails on LO Fan(indicating the motor will not run on hi fan continuously), then you look at the upper board or the tstat. Doug
So, if the fan motor is overheating on low, why woulc the compressor turn off at the same time?
I did not get that from his post. What I understood was the LO Fan FAILED to stay running regardless of the compressor. He wants the fan to stay ON 24/7 which it should when set to LO instead of AUTO. IF the fan fails, the compressor WILL be killed by the overload on the Compressor. But, it will take awhile for it to overheat. Doug
