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Carrier 25HNA936A0030030 Flame Sensor
A flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that can sense the appropriate flame during ignition. As with any other safety sensor, when the flame sensor gets triggered by something the system will halt until the main issue is remedied.
What are the signs that the flame sensor is failing?
- The heat system cannot produce any heat whatsoever
- The main type of gas cannot begin an ignition sequence and shuts itself off
- The whole system turns on occasionally when the time is right
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