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Lennox HP13-018 Flame Sensor
The flame sensor is one of the safety features that senses the precise flame upon ignition. Because of the safety issues involved, if the flame sensor is triggered the entire HVAC system will stop until obstacle is corrected.
How do you know if your primary flame sensor is almost going bad?
- The gas that has entered the furnace has problems trying to properly ignite no matter what you do
- The heat system will not work and completely shuts down
- The whole system will sort of operate rarely barely
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