My furnace started dying last month, and in doing some reading, I tried replacing the pressure switch as a cause for the furnace not sparking correctly, or sparking and then going out spontaneously(my furnace is a Lennox Model G23Q2/3-75-4). While this was not ultimately the cause of my issues (I had to replace the chintzy Johnson Controls Intermittent Ignition Control), I can confirm that this pressure sensor works for the furnace listed and and is a working replacement part for this furnace. I will note that this part is laid out significantly different than the original part in the furnace and is significantly smaller, but that original pressure switch was over 20 years old from the initial install of the furnace. Specifically, if I screwed this pressure switch in exactly where the old one was, the connection point for the pressure hose would've ended up on the opposite side of the switch from where I needed it. What I ended up having to do was drill two new holes in the flashing of the furnace so that I could hang the pressure switch backwards from the previous install - which dropped all of the connections exactly where I needed them to be. The other notable part of the install was replacing the old rubber hose. I checked all of the home improvement stores near me, and had no luck. Rubber tubes weren't bendy enough, latex tubes didn't come small enough, and the vinyl tube I tried didn't seal well and when it started to warm up, would soften and slide off of the connection. I tried an auto parts store after I get fed up looking at home improvement stores, and it turned out that windshield wiper tubing was perfect for the installation. Hopefully that helps you out with your own installation.
Joe T
Colorado
6 years ago
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.