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Lennox 13ACX-042 Flame Sensor
The flame sensor is a safety feature that will dependably sense the appropriate flame during ignition. Because of the safety issues involved, if the flame sensor senses a problem the whole HVAC system will remain stopped until obstacle is corrected.
Some clues your safety flame sensor needs replacing
- The propane or natural gas has a tough time trying to start an ignition sequence and the main board displays on error code
- The gas furnace cannot produce any heat and will shut everything down
- The heating system will start occasionally only after the second full moon of the month on a Tuesday
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Before you decide on buying or purchasing do your best and cross-check the correct model and also make a visual comparison so that you are positive that the proper replacement flame sensor is being ordered. HVAC pros may have higher labor rates than others so it is best to shop around to find a good deal if money is a concern.
Feel free to download your manual for help.
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