My dometic duo therm brisk air RV a/c unit is not cooling the RV

Low freon switch prevent the compressor from running when there is not enough freon to carry the oil to lubricate it. There is almost always enough pressure to start it but as soon as it's running low pressure drops and the compressor stops.

http://www.dometic.com/QBank/EPiServer/Dometic/US/Manuals/RV-manuals/Air-Conditioning/Penguin-Brisk-Air-Installation-Operating-Manual_17591.pdf

try replacing capacitors

You will need at least a 5000 watt generator to run that and a few lights etc... for the camper.

heatman101

Usually just listening closely will give you a rough idea where to look for problem. When you have the fan on and switch to cool, (with temperature turned down low obviously) do you hear any type of "moaning" sounds from AC unit, or see lights in RV dim slightly indicating that compressor is trying to engage? Is the breaker tripping when compressor tries to engage? Do you hear a "click" from AC unit when switched to cool? If none of that happens, then I'd start thinking thermostat, or compressor relay. Normally if it's a faulty capacitor, the compressor will try to engage but will make a "moaning sound" and usually trip the breaker due to excess current draw. Someone experience in electrical should be able to test relays etc, but whoever does work on it, should be aware that those capacitors, as well as hydro in general are very dangerous to work with. The ("zap",- Shock) that you can experience from a capacitor or hydro, can be fatal.

wow first off how far of an wire run is it and what size wire did you use keep me in formed and we can get it working

take the cover off and make sure the drain line is clear on top off RV.

Could be the drain path is clogged.. Take the cover off & see if you can get it cleaned..

Most likely it is a small round overload found next to the wires going into the compressor. If that one seems ok then the next thing I would check is the capacitor. Might need a start assist.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61