PDA

View Full Version : AC Compressor will not come on


km4um
May 23, 2009, 06:42 AM
My AC compressor will not come on. Blower works but not compressor. Breaker is good. How do I check to see if it is getting power? And more importantly, is this something w/o an electrical or HVAC background should attempt?

Stratmando
May 23, 2009, 06:54 AM
If Compressor Fan is working, then the control wires and contactor is working. May be the Motor.
If Compressor and compressor Fan don't work, then it could be a contactor problem.
Thermostat sends 24 volts to Contactor coil, completeing power from panel to both.

KC13
May 23, 2009, 07:25 AM
The outdoor disconnect may contain fuses. Have you checked?

Stratmando
May 23, 2009, 07:58 AM
Still need to know if compressor fan is working.