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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Carrier Thermostat went blank

Customer Question

Carrier Thermostat went blank
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.

have you checked the drain from the ac coil for blockage? There may be a drain safety switch tripped
Customer: replied 1 year ago.

I have geo thermal

Expert:  BillyHvac replied 1 year ago.
yes..but you still have a condensate drain.
Customer: replied 1 year ago.

Drain looks clean

fuse was blown i replaced and blew again

Expert:  BillyHvac replied 1 year ago.
look for damage to the thermostat wire outside. Pulled, weedwacked, chewed etc...