My furnace was shutting down after a a few minutes.
Clean flame sensor lennox gas furnace.
Remember you are not sanding down an auto body but simply ridding the sensor of any build up it may have.
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Did you check the furnace s filters.
How do i remove the flame sensor to clean it on a lennox 80mgf series furnace.
As long as the component senses the flame it sends a message to the main furnace control board telling it to keep the main burner on and the gas valve open.
Do you plan on doing the work yourself.
Lennox gas furnaces contain an important safety component known as a flame sensor.
I noticed that the flame would come on then go out after a few minutes then light then go out after another 3 4 minutes.
Anything else we should know to help you best.
I have all the gas shut off thermostat off and power off to the furnace.
After 3 tries the.