The most common reasons for replacing the flame sens.
Furnace flame sensor location.
This is an eas.
This video provides step by step repair instructions for replacing the flame sensor on a lennox furnace.
The flame sensor monitors the burner to detect whether or not a flame is present.
If the flame sensor does not detect a flame the co.
If the flame sensor is defective it might fail to detect a flame.
It is a common problem.
A properly functioning flame sensor will shut down the gas valve when it does not sense a flame when the furnace should be firing.
Ntrol board will shut off voltage to the gas valve to prevent the furnace from heating.
Check the manual book of your furnace because you may be able to identify the location easier.
Flame sensor location how to find a flame sensor.
If your furnace burners come on then go right off watch this.
Please note that it could be protected in slots and you may need to open a few screws.
This is a great video that shows how the fu.
If you want to find a flame sensor first you will need to open the cover of furnace access.
Repairing or replacing your furnace flame sensor is easy and something everyone should know how to do.
If the flame sensor can t sense the flame because it s too dirty the furnace may shut itself off.
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.
Replace flame sensor trane xr 80 furnace.
Flame sensor location how to find a flame sensor.
If your gas furnace in not staying on the problem is usually a dirty flame sensor.
When the furnace has fired and is burning hot a bad flame sensor won t sense the heat and will shut down the furnace.
Lennox gas furnaces contain an important safety component known as a flame sensor.
Just clean the flame sensor and your furnace will stay on.