
The furnace thermocouple is a sensor that sends an electric current to the furnace’s pilot light. This current helps keep the pilot light lit. If the thermocouple isn’t working, then the pilot light will eventually go out and your furnace won’t work. The electronic flame sensor is a safety device that senses if there is a flame in your furnace’s burners. If there isn’t a flame, the electronic flame sensor will shut off the fuel supply to your
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