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Samsung MH035FECA Flame Sensor
The flame sensor is a very important part of the safety feature set that senses the proper flame when the system starts. As expected, if the flame sensor is triggered the system remains completely shut down until the problem is remedied and the system is reset.
Signals of a poorly performing primary flame sensor
- HVAC system will sometimes work infrequently but only on the third Wednesday of on months beginning on Thursday
- Any type of gas that has entered the furnace has problems trying to start an ignition sequence and shuts itself off
- The heating system is unwilling to start and will shut everything down
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