Help! This morning, it was very hot in my townhouse. The thermometer read 75 when it was set to be 65. When I came home from work, it was 85. I turned off the heat. What could be the problem??
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Help! This morning, it was very hot in my townhouse. The thermometer read 75 when it was set to be 65. When I came home from work, it was 85. I turned off the heat. What could be the problem??
Defective thermostat
Defective control in furnace/air handler.
Pinched or shorted thermostat wires.
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