★ Key Takeaways
It's Possible for a Flame Sensor to Go Bad; but More Often Than Not, It Is Not Broken, Just Dirty from Carbon Buildup. Because a Flame Sensor Has a Very Low Tolerance for Variations in the Reading It Takes, the Slightest Coating of Carbon Can Cause It to Misread and Shut Down.
Read about comprehensive coverage concerning Do Furnace Flame Sensors Go Bad.
It's Possible for a Flame Sensor to Go Bad; but More Often Than Not, It Is Not Broken, Just Dirty from Carbon Buildup. Because a Flame Sensor Has a Very Low Tolerance for Variations in the Reading It Takes, the Slightest Coating of Carbon Can Cause It to Misread and Shut Down.
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