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Lennox XP13-030 Flame Sensor
A flame sensor is a contraption that will sense the proper flame when the system starts. Because of the safety issues involved, if the sensor generated a error the gas valve is shut off and the system halts until the problem is repaired.
Major indications of a failing furnace flame sensor
- The main type of gas refuses to try to begin an ignition sequence and closes the gas valve
- HVAC system will sort of operate on certain occasions but only on the third Wednesday of on months beginning on Thursday
- Your furnace is unwilling to even begin to start and shows an error code on the board
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