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Friedrich MW12C1H Flame Sensor
A flame sensor is a vital part that senses the exact flame when igniting the system. As with most safety features, if the flame sensor senses a problem the furnace cannot start again for as long as the problem remains.
Some warnings your safety flame sensor is in need of replacing
- The whole system operates occasionally at midnight, but only after the new moon following the fourth Monday of the month
- The gas that has entered the furnace refuses to try to ignite and closes down
- The heating system is unable to generate heat when the thermostat kicks in
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