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Lennox G40UH-60D-135 Flame Sensor
A flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that can reliably detect the exact flame when igniting the system. Due to the overall safety issue, if the sensor goes off the entire HVAC system will stop for as long as the problem remains.
Major clues of a weak flame sensor
- Your
system refuses to produce any heat and spits out an error code on the main board - LP or natural gas cannot ignite no matter what you do
- The heating system will work occasionally only
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Before buying or purchasing a replacement flame sensor for your Lennox G40UH-60D-135 do your best and make sure of the model number as well as make a visual inspection in order to be sure the proper replacement flame sensor is the one being purchased. There is no need to install it yourself. Consult with a professional in your area to do it for you.
Feel free to download your manual for help.
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