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Friedrich MW24C3F Flame Sensor
The flame sensor is an important safety feature that will consistently detect the correct flame when igniting the system. Due to safety concerns, if the flame sensor senses a problem the whole system stops until the problem is remedied and the system is reset.
Indications your safety flame sensor needs a replacement ASAP
- The unit will run rarely at the stroke of midnight after the second full moon following the second Sunday of the month
- The heating system will not start when it is supposed to
- The propane or natural gas cannot start an ignition sequence and closes down
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