HVAC - No Compressor run
The Coleman Mach 3 13.5 BTU HVAC has worked perfectly from 2008 until now. Troubleshooting my RV HVAC unit. The thermostat says COOLING ON. I have fan control from the thermostat, but no compress...
Forum Discussion
dougrainer wrote:
There is no low pressure cut off on his AC. You should have 12 volts on the YELLOW wire or "Y" terminal at the upper control board. If you do NOT, just jumper the 12 volts from either the GL(low) or GH(high) fan wire. Fan on LO and the GL will have 12 volts. GH and on HIGH it will have 12 volts. IF the Compressor relay fails to close and engage the compressor the upper board is probably bad. Doug
Doug, I love reading your prescriptions -you are truly amazing :) !!
Many Thanks,
3 tons
