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Lennox 42W43 Flame Sensor
A flame sensor is an important feature that senses the proper flame upon ignition. As with most devices used for safety reason, if the flame sensor gets set off the gas valve is shut off and the system halts until that particular problem is fixed.
What red flags are there that my Lennox flame sensor is dying?
- The heat system is unable to even begin to start when you want it to
- The LP or natural gas refuses to burn and the main board displays on error code
- System operates sometimes only after the second full moon of the month on a Tuesday
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If you decide on picking up or purchasing, do your due diligence and double check the correct model and also make a visual comparison so that you are positive that the correct flame sensor is the one being purchased. You do not need to replace the part all by yourself. Consult with a professional in your town or city to hire and install the part for you.
Feel free to download your manual for help.
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