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Goodman GKS90904CXAD Flame Sensor
A flame sensor is a device that senses the acceptable flame in accordance with the initial ignition sequence. For obvious reasons, if the flame sensor gets set off the system will halt until the problem is remedied and the system is reset.
Important clues of a laboring primary flame sensor
- Any type of gas that has entered the furnace cannot begin an ignition sequence and the board throws an error
- The furnace will sometimes work rarely when it wants to
- Your gas furnace cannot even start when you crank the thermostat up
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