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BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22389
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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I have a payne HVA sistem which I change the thermostat but

Customer Question

I have a payne HVA sistem which I change the thermostat but when turn on the AC blow out the fuse can you tell me whats wrong in the system. blower, condenser furnace, are OK.Only when put the C and Y Terminal is when the fuse is out.
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.

hello, is this the small fuse on the circuit board?

Expert:  BillyHvac replied 1 year ago.

if so your wire that runs outside to the ac from Y and C is damaged or the contactor is shorted..