my heat pump is not working no compressor no fan. My heat works but i tried to bypass the thermostat as a test i can jumper the red wire to the green fan runs fine but when i add the white wire fan shuts off. if i tie the red green and yellow as i was testing cooling nothing happened and fan kept running. i don't know why when testing the heat it shut off the fan and i don't know if i have a wiring issure trying a test that is bad or its the heat pump that has the problem thanks in advance
- posted
11 years ago