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Desa R115 Flame Sensor
A flame sensor is only found on gas furnaces. It is a sensor that can reliably detect the proper flame when the system starts. As with most devices used for safety reason, when the flame sensor gets triggered by something the system will halt until the problem is remedied and the system is reset.
Key clues of a faulty furnace flame sensor
- The gas furnace is unable to start when the thermostat kicks in
- The furnace turns on sometimes only
- The gas will not even try to ignite and shuts off
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