Worked all winter to heat the house (heat pump) although I was rather expensive, $250 bills vs $60-$70 without it running the last couple months. Anyway, I tried to start it to cool since its raining is very humid and it wouldn't run so...>Inside unit was running, blowing air, sending 24v signal >Confirmed capacitor was good >Confirmed the 240v (Had to replace breaker in main panel, it was kinda working kinda not.)>Fan on outside unit would turn on but not compressor >Replaced contractor even though it seemed good >Fan will run but compressor just hums and tries to trips the breaker >Replace capacitor >Breaker trips immediately So, all I can figure is the compressor is locked down? Worth trying a hard start kit or do I need to look into some window shakers? Or $125 to have a "pro" come out, tell me what I already know and try to sell me a new system.
>>2992977It might be the compressor, but you should check the disconnects at the compressor (under the square black cup) for arcing, carbon deposits, and corrosion/oxidation. Maybe you just need to clean or crimp new disconnect terminals.
>>2992992>clean or crimp new disconnect terminalsIf this is the problem, use a thin (THIN) coating of dielectric grease on the compressor pins and disconnect terminals to prevent it from happening again.
>>2992977Unless you fucked up the wiring in the contactor or capacitor it sounds like the compressor is seized. You could try a hard start kit but most likely you'll need to change the compressor. Breaker would trip right away if the windings were shorted to ground. If it hums a bit before tripping it's a mechanical failure most likely
>>2992977> $250 bills vs $60-$70are you sure the compressor was running in the winter? if you have emergency heat backup, it might have been locked up all winter and instead running on emergency heat.
>>2993088I could hear it running.
>>2992977hit the fucker with a hammer all over, sometimes it knocks them loose.
Does anybody know which books would be the "bible" for diy or doing HVAC professionally? Thank you for your time.
>>2992977>>Breaker trips immediatelyHappened to me. Just check the incoming power terminal to the chassis ground on the multimeter set to ohmmeter. If you get a 0-5 ohms then the compressor is shorted to ground and you need a new unit because the refrigerant is now fucked along with the compressor. Mine melted the wiring harness.
>>2992977is it out of refrigerant? have you actually checked to make sure its not leaking? would suck to do all this work and find out your system has been trying to compress air and burning itself out
