My Goodman H\P (installed this summer\fall) was checked out\tuned up 3 weeks ago by a reputable HVAC company. The tech was here for about 3 hours. Very thorough, did SH calc's and all.
I have 90 degree air from the suppy right now and outdoor ambient is 37. I'm happy.
The issue is, the thermals dont seem to be kicking in while in the defrost mode. The supply temp drops a few degrees while in the defrost mode and the AUX LED does not light.
Raise the TS temp by 3 degrees and the AUX LED lights, and you can feel the thermals kick in (hot air). Switch to emegency heat, thermals kick in, H\P (outdoor unit)shut's off, AUX heat LED lights (with the red emergency LED)
The only problem the tech found was a defective AH fan run cap out of spec. He replaced it under warrantee.
Any clues to why in defrost mode the thermals dont kick in? Under contract, they will be here Monday. Was just wondering you Guru's opinion's.