View Full Version : HVAC help?

07-07-2005, 12:46 PM
Does anyone know anything about AC? I'm fiddleing with my AC on top of my Winnebago and am having problems. The compressor will run for about 30 seconds and then shut off. When it is running I have 115v to common 5 V to run and 220 to start. When it shuts off i have 115v to all of them from ground. I can't figure out what is the problem. I know just enough to know I don't know what I'm doing but if there is anyone that can help me find out the problem I'd appreciate it.
The cost for a service call is going to be close to the cost of a new unit.

I'm trying to decide if its low on coolant, Bad thermostat, or bad compressor. I replaced the Start capacitor and relay with a 3 in one.

Thanks Sean

07-07-2005, 01:16 PM
If the compressor is cycling on and off my first thought would be low on freon.

07-07-2005, 01:21 PM
I'm now thinking i wiried out the run capacitor. I'm trying to find a wiring diagram for the ac. Someone that does ac would look at it and go Ohh that's the problem.