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Payne PH3ZNA048000AA Flame Sensor
The flame sensor is only found on gas furnaces. It is a sensor that will dependably sense the acceptable flame during the initial ignition of the furnace. As you could guess, if the flame sensor senses a problem the system will halt until obstacle is corrected.
Major symptoms of a poorly performing primary flame sensor
- The whole system will run sometimes when it feels like it
- The type of gas you use cannot start an ignition sequence no matter what
- Your furnace is unable to even begin to start when the thermostat kicks in
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