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Desa B165A Flame Sensor
A flame sensor is a safety feature that can sense the precise flame when igniting the system. As you would probably could have guessed, when the flame sensor is activated the gas valve is shut off and the system halts until the problem is dealt with.
Subtle hints your safety flame sensor will eventually need to be replaced
- The propane or natural gas has a tough time trying to start an ignition sequence and shuts itself off
- The whole system operates sometimes barely
- Your gas furnace will not generate heat and completely shuts down
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