Heat pump circuit breaker pbms
If the stat goes off when the breaker trips, then that is the breaker to your air handler, that is also the breaker that runs your aux heat. You say it trips when it is real cold out? That would be when your aux heat is running at maximum.
You may have a weak breaker, or you may have a problem with your strip heaters. I guess starting with the breaker is the easiest part and if it does it again, you'll have to investigate a problem in the air handler. How many KW of strip heat do you have? Also, it has to be a 5 ton unit, anything bigger than that would be 3 phase commercial.
Last edited by sammy37; 12-12-2008 at 11:52 AM.