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Carrier 48XZ042090300TP Flame Sensor
The flame sensor is a safety device that senses the precise flame while the system is starting. As you would probably could have guessed, if the sensor get triggered everything comes to a halt until obstacle is corrected.
Clues of a bad flame sensor
- The heat system is unwilling to ramp up when the thermostat kicks in
- The heating system will kind of run intermittently whenever it pleases
- The propane or natural gas refuses to try to ignite and closes the gas valve
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