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Goodman GMS80905CN Flame Sensor
A flame sensor is a safety feature that senses the flame during the initial ignition of the furnace. As with other safety devices, if the flame sensor gets set off the system will halt until the problem is fixed.
Main clues the primary flame sensor is going to die
- Your furnace refuses to even start when you crank the thermostat up
- The gas will not start an ignition sequence no matter what
- The heating system will start sometimes barely
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