John November 23, 2023 for Model Number AZ65H15DADW1 Hello, I have this GE unit. It is likely several years old, but was never installed. I installed it in my shop, hooked up the 240 volts. The unit turns on fine, but only the electric heat works. The compressor doesn't kick on for the heat pump. I tested the motor windings and also tested the capacitor, and it all checks out fine. Turns out the relay on the main board that is supposed to kick on and supply the second leg of the 120 volts to the capacitor isn't activating. I ohmed the coil side leads for the relay on the main board and they ohm good, but I don't get any voltage to the coil side of the relay. I did bypass the relay and jumper the other leg to the compressor and got it to run fine. Is there anything else I should look at control wise or is the main board likely the culprit? I don't know if any sensors or any other items would keep that contactor from engaging. Thank you
1 Answer John, Based on what information was provided, the main control board will be the most logical cause for this issue. Read More...
Bob May 16, 2023 for Model Number AZ45E07DABW2 Is there a way to check the thermistor from the board?
1 Answer Bob, There is a way to test the thermistor at the board but will need to get your tech sheet or wiring diagram from the unit. Read More...
Tim May 16, 2023 for Model Number AZ45E07DABW2 Is there a way to test this board for proper function?
1 Answer Tim, You can test to see if there is power coming into the unit and if there is but no power going out to individual components then the board will be faulty. Read More...
1 Answer Buck, with the power supply cord unplugged, the front panel would need to be removed. This will allow access to the main control mounting bracket and control. Read More...