DescriptionThis video provides step-by-step repair instructions for replacing the lower pressure switch on a York furnace. The most common reasons for replacing the pressure switch are when the furnace won't heat or when the furnace shuts off after a few minutes.
All of the information for this lower pressure switch replacement video is applicable to the following brands:
York
Tools used: multi screwdriver, flat head bit, Phillips head bit
Step-By-Step Instructions1
To replace the lower pressure switch in your furnace first shut off the power to the furnace.
2
Next, rotate the knobs securing the combustion chamber panel and pull the panel off.
3
Now disconnect the pressure switch wires.
5
Use a small phillips-head screwdriver to remove the pressure switch mounting screw and pull the old switch off.
6
Install the new pressure switch by aligning it on the draft inducer housing then replace the mounting screw to secure.
7
Attach the vacuum tube and connect the wires.
8
Reposition the combustion chamber panel and rotate the knobs to secure.
9
With the repair completed, turn the power back on and your furnace should be ready for use.