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Whirlpool ATR1252RPP0 Flame Sensor
The flame sensor is only found on gas furnaces. It is a sensor that senses the exact flame when the system starts. Due to the overall safety issue, if the sensor get triggered the entire HVAC system will stop until that particular problem is fixed.
Symptoms of a poorly working flame sensor
- The unit will start sometimes at midnight, but only after the new moon following the fourth Monday of the month
- The furnace cannot even begin to start no matter what
- The gas will not ignite and shuts off
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