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International Comfort Products PGAD24D1K1 Flame Sensor
A flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that will sense the correct flame when igniting the system. For obvious reasons, when the sensor is triggered by an event the furnace cannot start again until obstacle is corrected.
Indications of a failing furnace flame sensor
- HVAC system will run on certain occasions at the stroke of midnight after the second full moon following the second Sunday of the month
- The furnace cannot fire up and shuts down
- LP or natural gas refuses to burn and some type of error flashes on the main board
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