Thought I would post the question and see if anyone has any suggestions.
~15 year old Tempstar heat pump quit cooling suddenly. Contactor not engaging, causing neither condenser fan or compressor to run. Depress plunger and they start. Relays "click" when unit is commended on, meaning it is getting the 24 volts. Contactor works if you apply 24 volts.
My guess is an issue with the circuit board. Any thoughts or suggestions? Would rather not replace it but I would get an R410 machine before dumping a bunch of money into an old R22 machine.
~15 year old Tempstar heat pump quit cooling suddenly. Contactor not engaging, causing neither condenser fan or compressor to run. Depress plunger and they start. Relays "click" when unit is commended on, meaning it is getting the 24 volts. Contactor works if you apply 24 volts.
My guess is an issue with the circuit board. Any thoughts or suggestions? Would rather not replace it but I would get an R410 machine before dumping a bunch of money into an old R22 machine.