We have a brand new coleman mach 8 cub and an rv comfort hc coleman mach 7330g335 thermostat. The AC fan runs on both low and high and responds to the thermostat but the air won't cool. For whatever reason the compressor won't kick on. I've checked the yellow wire and made sure it's got a good connection at both the thermostat and at the control box on the AC itself.
It's brand new so we're taking it back for a warranty once we return but we're traveling back through the heatwave in the southwest so I'd like to try to get it working.
Jumping the 2 leads at the Freeze Thermister connection on the control board will start the compressor on a RVP. NOT installing the Freeze Thermister will also NOT allow the compressor to start and run. Did you install the Freeze Thermister? Doug
Compressor not coming on, I would suspect the freeze control- don't know offhand what value they need, but usually either opening or shorting the leads will bypass with no damage.