Last time I used my fleetwood 2006 the Ac was working fine except the breaker would trip occasionally. One month later at a different location when pluged it up the same way the ac nor the fan will come on. Could this be a thermostat issue. I checked the compacitor and it looked fine. The trailor has a 50 amp plug, but I am stepping it down to a 30 amp ext cord and 30 amp breaker.
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To start with, if it's plugged in to a 15 amp breaker, and extension cord, the compressor starting up may just be enough to trip the breaker. It will draw close to 15 amps on start-up of compressor, and if there is a light extension cord used to plug it in, that only makes it worse. Make sure you shut all other breakers off in panel except AC, and try it. If you have water heater on hydro, fridge on hydro, and then try to start AC compressor, you'll be way over the 15 amps, especially if it's a light extension cord. Keep in mind, in order for fridge to work, you need 12 volts DC (Battery) power going to back of fridge. If the controls aren't lighting up at top, you've most likely got no 12 Volt DC power going to fridge. Check all fuses as well.
I had to get on the roof of mine, remove the cover and manually spin the fan. Add a little oil to the shaft where it goes thru the bearing. All of this is done on the roof side. Mine required this procedure every spring. Duotherm realizes they had a problem and have since corrected it but they don't deal with all of their customers that had the original problem.
Check the capacitor. It is in the outaside unit. Siver with three terminals on top. If it is swollen it is bad. Check for burnt wires. You can repair these yourself. Compressor maybe stuck. If it is an old unit you will have to replace it. Rusty
You must have too many things running on that circuit. Check your connection to the power box.Loose connection on the receptacle can cause the breaker to trip or too many things running on the same circuit. If the breaker is old it might need to be replaced.
I had a problem with my coleman mach 3 AC, we were at an RV park up at lake shasta CA and the fan would stay on but the compressor would come on for a few seconds and then trip off. It was the motor overload relay on the compressor that was tripping. the RV park was old and apparently the wiring to the panelboard at the RV park was too small, when you are drawing a lot of current there was too much voltage drop across their line, to make up for this the motor tries to draw more current and heats up the motor overload and it trips off. I solved this problem by buying an autoformer from Camping World, it senses a voltage drop and automatically boosts the voltage.
I am now having a seperate problem, the compressor is either locked up or has too much back pressure and trips off the service breaker when trying to start. The only solution I can see with my current problem is to replace the entire unit.