Search:

To add more info, I just checked the outside unit. The aux heat was on. It is forty five degrees outside. The fan was not spinning outside, but the unit was humming. I'm guessing defrost cycle. After...

OK I can understand that but need to ask further.

To clarify the thermostat, I set it at hold 70 degrees for the winter season 24 hours a day. I only use setbacks in the summer hot weather. I just...

Equipment:
Trane XL1400 4 years old
Auxilery heat: Strips... 2 -60Amp circuits
Filters changed every 30 days
I cleaned outdoor unit summer 2006, as every year.
Thermostat: Honeywell Chromotherm...