DescriptionThis video provides step-by-step instructions for replacing the door switch on Rheem furnaces. The most common reason for replacing the door switch is if the furnace will not run and testing proves the door switch is at fault.
All of the information in this door switch replacement video is applicable to the following brands: Rheem, Ruud, DuroGuard, Thermal Zone, WeatherKing
Tools used: flat-head screwdriver
Step-By-Step Instructions1
To replace the door switch in your furnace first turn off the power to the furnace.
2
To reach the door switch, you will need to remove both access panels.
3
Slide the upper panel up to detach followed by the lower panel.
4
Use a flat-head screwdriver to remove the screw securing the main power housing cover.
6
Note the orientation of the door switch wires then disconnect them.
7
Depress the tabs to release the old switch from the housing.
8
Install the new door switch by properly aligning it with the housing and snapping it into place.
9
Connect the wires to the appropriate terminals on the new switch.
10
Replace the housing cover and rethread the screw to secure.
11
Reinstall the lower access panel first followed by the upper panel.
12
With the repair completed, turn the power back on and your furnace should be ready for use.