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Friedrich MW30C3G Flame Sensor
A flame sensor is a safety feature that will sense the flame when the system starts. For obvious reasons, if the flame sensor is triggered the whole HVAC system will remain stopped until the problem is dealt with.
Indications your safety flame sensor has to be replaced
- Your system will not fire up when you want it to
- System will sort of operate on certain occasions when the time is right
- Any type of gas that has entered the furnace has a tough time trying to ignite and shut down
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