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It's possible. Our furnace runs mostly after sundown. The outside sun warms the wall which holds the thermostat.
I know that can happen, I just can't believe someone would not realize that if the thermometer is registering higher than the setting, the furnace won't come on.
I know that can happen, I just can't believe someone would not realize that if the thermometer is registering higher than the setting, the furnace won't come on.
We had this in a house I lived in before. The house felt extremely cold but the thermostat said that it was higher than the heating set point. It was because the thermostat was sitting in the sun and even though the house was 66 degrees, the thermostat thought it was 77 degrees. We ultimately moved the thermostat but temporarily put a window blind on the window that the light was coming through to solve the problem until we had move it.
During the day it is pretty cold too, usually in the winter time when the temperature is -10 out and sunny, the furnace is still off because the thermostat indicates that the temperature is much warmer than the temperature you set the furnace to, the thermostat by the way is in our living room, especially on sunny days the furnace does not turn on, we usually have to wait till the sunsets and the temperature to go back down on the thermostat to its set temperature for it to turn back on?
Is the thermostat in the sun? Or near the top of a staircase?
Apologies to Post #3. I didn't notice it.
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