Which Air Handler Circuit Board Wiring Diagram?
Had a new Heat Pump installed earlier this week by an independent. Guy did a decent job but I found a fault in the air handler wiring so now I’m second guessing this whole deal. Outdoor unit is a Goodman GSH140421A (3.5 ton) Indoor unit is a Goodman AEPF42601 w/10K heat strips After the installer left, the AC kept running and running, house got colder and colder, regardless of the temp setting on the thermostat. Had to turn the thermostat from Cool to Off and it finally stopped. Ended up the guy forgot to remove a jumper wire in the air handler unit. I found it and removed it myself by studying the Goodman wiring diagrams for the air handler circuit board. Now the AC works and cycles just fine. Yea! I later phoned him on it and he said, “Oops, I forgot to remove that jumper. You should be OK now though. Sorry.” Again, I’m second guessing some of the other wiring now, and fear I may run into similar problems come winter time when I want some heat. Here are the air handler instructions:
