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International Comfort Products NDN6125KJA1 Flame Sensor
A flame sensor is a contraption that will sense the flame when igniting the system. Due to safety concerns, if the sensor goes off the gas valve is shut off and the system halts until the problem is fixed.
Red flags of a bad safety flame sensor
- The unit kicks in sporadically when it feels like it
- The type of gas you use will not even try to begin an ignition sequence and the whole system shuts down
- The furnace cannot start when you crank the thermostat up
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