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International Comfort Products H8DNL075B12A1 Flame Sensor
A flame sensor is only found on gas furnaces. It is a sensor that can reliably detect the proper flame while the system is starting. Because of the safety issues involved, when the flame sensor is activated the entire HVAC system will stop until the problem is fixed.
Key symptoms of an ailing safety flame sensor
- The gas entering the furnace will not even try to begin an ignition sequence and the control shows an error
- Your gas furnace cannot produce any heat when you want it to
- The furnace works occasionally when the time is right
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