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Friedrich MW30C3F Flame Sensor
The flame sensor is only used on furnaces that burn gas and is one that will dependably sense the correct flame during ignition. As with most devices used for safety reason, if the flame sensor gets set off the system will halt until that particular problem is fixed.
What signals that my flame sensor needs replacing?
- Your gas furnace refuses to work and spits out an error code on the main board
- Any type of gas that has entered the furnace has a tough time trying to ignite no matter what you do
- The whole system will kind of run intermittently when the time is right
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