I will look to see if we have both options. I know right now, with the air conditioner on, the fan is not running constantly. Are you thinking of a possible cause?
Sorry, more info....yes the fan and compressor are on and off. It seems the fan usually kicks on before the compressor, but at the 3 second intervals, there's not much of a difference.
Well I was researching this thread a little bit but it sounds like several possible options depending on your symptoms. I thought if you were on auto it might be worth testing running it on low or high just so you have a little more info:
This is camperone; we're having the same problem need some help! AC turns on then in seconds turns off! I've lowered the temp turned the fan on not sure what else to do?
I spoke to the Dometic rep at the Frog Rally (Goshen), He said the problem is that the thermostat has a tolerance of plus or minus one degree and being so close to the A/C unit causes it to short cycle.
I have seen that some Podders have made covers to prevent direct air flow on the thermostat, and said it took care of the short cycling. I'm going to work on one for our 179, hope it works.