My heater is in the process of crapping out. The aux heat keeps coming on constantly. I didn't notice till I just got my latest electric bill. It's triple what it normally is. I put in the service request with American Home Shield yesterday. If I'm lucky the hvac people will call me tomorrow. When they will actually show up to fix it is a crap shoot.This system is the one they put in when they built the house in 2003. The coils in the attic unit are solid rust. They will either have to completely rebuild it or install a new unit. I'll update later. I'm freezing. I do have backup heat both electric and propane plus the fireplace.
Terry
Terry