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Friedrich MW18Y3FM Flame Sensor
A flame sensor is a safety feature that will sense the proper flame while the system is starting. Due to safety concerns, if the sensor goes off the entire HVAC system will stop until the problem is dealt with.
Some warnings the primary flame sensor is in dire need of a replacement
- The LP or natural gas refuses to try to begin igniting and closes the gas valve
- The heating system kicks in on certain occasions whenever it pleases
- The gas furnace will not produce any heat no matter what
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Before buying or purchasing a new Friedrich MW18Y3FM replacement part do your best and make sure of the model number and also make a visual inspection so that you are positive that the correct flame sensor is being ordered. Take safety precautions when you replace or install any part of a heating or cooling system. call a pro. Stay safe.
Feel free to download your manual for help.
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