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International Comfort Products PYPA42GA1 Flame Sensor
The flame sensor is a safety device that can sense the precise flame during ignition. As with most safety features, when the flame sensor gets triggered by something everything stops until the problem is remedied and the system is reset.
Key signs of a worsening primary flame sensor
- Your gas furnace is unable to even begin to start when the thermostat kicks in
- The furnace kicks in rarely only after the second full moon of the month on a Tuesday
- The gas has problems trying to begin an ignition sequence and the board throws an error
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