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Carrier FF1DNA018000AAAA Flame Sensor
A flame sensor is one of the safety features that will sense the acceptable flame during the initial ignition of the furnace. As with most devices used for safety reason, when the sensor is triggered by an event everything comes to a halt until that particular problem is fixed.
Some clues of a weak furnace flame sensor
- The furnace will run sometimes when the time is right
- Your gas furnace cannot start when the thermostat kicks in
- The main type of gas will not start an ignition sequence and closes the gas valve
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