Apologies for the longer post but darn, if we're not perplexed over here. We have an older Spacepak unit in the attic and an older "Comfortmaker" compressor outside. The air conditioning unit overall has been working great up until 4 days ago. We noticed that the Spacepak was running but the...

Hello. I have an Amana HVAC system I purchased 2 years ago. I purchased a new thermostat that requires the blue 24v common wire. When I hooked it up, it does not power on. The control panel in the HVAC system (a Goodman PCBBF106S) has each color wire correctly wired up. However, the...

Lennox split unit. 240v getting to and from contactor inside the condenser but not getting the 24v on the side posts. Condenser works when the reset button is depressed. At the circuit board: I have power getting to board via the black wire through the cover switch and a small amount of...