Ivylog wrote:
Any good home hvac guy can put a line tap on the suction line and add some freon. It does not add up that it works OK for several days if it's low on freon. Can you bypass the Tstat?
First of all these RV units are not designed to add freon. That said.
Be careful if you do that. Each state has its new set of very STRICT EPA rules on ac freon.
I had a repair guy who was a friend of a friend cut in and add freon on my ac in Florida.
Little did I know.:R
I went back up to Wisconsin and needed the coils cleaned from the Florida mold and the Mobile Repair/havac guy would NOT even clean the coils because the unit had been tapped into. He opened the hood and saw the tap and climbed back down. Said it wasn't about to lose his license working on a 'tampered' ac.
Same thing with my home ac. I had two units and one would ever so slowly leak over a years time. The refilled it ONCE. When I called them back a year later to fill it again they could not refill it.
To OP:
I don't think it is the freon issue. When you say cycling is it running and then shuts off when it reaches the set temp. And then you have to manually turn it on again?
most RV ac's need 12 volt for the thermostat. Check your coach battery.