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Friedrich BR1224W3A Flame Sensor
A flame sensor is a vital part that senses the correct flame upon ignition. As with most devices used for safety reason, when the flame sensor gets triggered by something the whole HVAC system will remain stopped until the problem is fixed.
Major clues of a defective primary flame sensor
- The heating system is unwilling to work when you want it to
- The main type of gas cannot properly ignite and the whole system shuts down
- HVAC system will work sporadically when it feels like it
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