blowing fuses

honeywellEW07 · #1 Dec 10, 2007, 06:09 PM

York heat pump,Have cold air all summer,fan alone runs fine,emergency heat works great,But when you turn it to heat only it will blow fuse,could it be a control board on the inside...Thats what I'm being told now.. by a service tech...By the way THANKS for the help so far....Heater coils have been checked,could something be over looked at the heating coils??Has anyone ran across this problem before???

Stratmando · Dec 10, 2007, 06:27 PM

If it blows fuse for the whole unit, maybe heater element contacting gound.
If transformer fuse, check heat low voltage control wires or heat contactor shorted.



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