What are the most common causes of a thermostat screen being blank? House is only 3 years old and I believe the thermostat is a digital unit.
What are the most common causes of a thermostat screen being blank? House is only 3 years old and I believe the thermostat is a digital unit.
Blown transforner
Blown fuse
Bad batterys
Power turned off to furnace
Defective thermostat
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