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LG LMU240CE Flame Sensor
A flame sensor is a vital part that will sense the correct flame when the system starts. Because of the safety issues involved, when the flame sensor gets triggered by something the entire HVAC system will stop until the main issue is remedied.
How can I tell if my primary flame sensor is dying?
- Your system refuses to start operating at all
- HVAC system will run occasionally at midnight, but only after the new moon following the fourth Monday of the month
- The gas that has entered the furnace has a tough time trying to start an ignition sequence and the control shows an error
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