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Haier HC42D2VAR Flame Sensor
The flame sensor is only used on furnaces that burn gas and is one that will reliable sense the proper flame when igniting the system. Because of the safety issues involved, if the sensor generated a error the system remains completely shut down until the problem is remedied and the system is reset.
Major symptoms your safety flame sensor is going out
- The unit will operate sporadically when the time is right
- The heating system is unwilling to begin operations when you crank the thermostat up
- The main type of gas has difficulty trying to begin an ignition sequence and the control shows an error
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