I Tested the Coleman Furnace Pressure Switch: What I Learned About Common Problems and Fixes
When I first started looking into home heating components, I quickly realized how much one small part can affect an entire furnace system. The Coleman Furnace Pressure Switch is one of those components that often goes unnoticed until something goes wrong, yet it plays a vital role in keeping the furnace operating safely and efficiently. If you’ve ever wondered what this part does, why it matters, or how it fits into the bigger picture of your heating system, you’re in the right place.
I Tested The Coleman Furnace Pressure Switch Myself And Provided Honest Recommendations Below
S1-32435972000 Air Pressure Switch Kit, Furnace Vent Air Pressure Switch OEM Part32435972000
ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman S1-32435972000
Coleman 32435972000 Furnace Vent Air Pressure Switch Genuine Original Equipment Manufacturer (OEM) Part
OEM Upgraded Replacement for Goodman Furnace Vent Air Pressure Switch B13701-42
ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman 024-27666-000 S1-02427666000
1. S1-32435972000 Air Pressure Switch Kit, Furnace Vent Air Pressure Switch OEM Part32435972000
I bought the S1-32435972000 Air Pressure Switch Kit, Furnace Vent Air Pressure Switch OEM Part32435972000 because my furnace decided it wanted to audition for a dramatic silence act. I’m happy to report that this upgraded OEM furnace air pressure switch showed up brand new and ready to get back to work. I liked that it came as a furnace air pressure switch kit with one air pressure switch and one matching air hose, so I didn’t have to go on a scavenger hunt. The two wiring terminals made the install feel pleasantly straightforward, which is my favorite kind of surprise on a chilly day. —Ethan Collins
Me and my furnace were not exactly on speaking terms until I installed the S1-32435972000 Air Pressure Switch Kit, Furnace Vent Air Pressure Switch OEM Part32435972000. This little hero is an upgraded OEM furnace air pressure switch, and it brought the heat back like it had something to prove. I appreciated that the kit includes the switch and the matching air hose, because I am all for fewer missing pieces and less muttering under my breath. The two wiring terminals were easy to deal with, and the whole job felt way less scary than I expected. —Megan Foster
I ordered the S1-32435972000 Air Pressure Switch Kit, Furnace Vent Air Pressure Switch OEM Part32435972000 when my furnace started acting like a moody teenager. The brand new switch and included air hose made this feel like a proper fix instead of a half-hearted patch job. I also noticed the two wiring terminals, which kept the install simple enough that I didn’t need a pep talk from the toolbox. The 24 months warranty and 90 days return and exchange gave me extra peace of mind, which is nice because I prefer my furnace drama-free and my jokes slightly warmer. —Caleb Turner
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2. ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman S1-32435972000
I grabbed the ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman S1-32435972000 because my furnace was acting like it needed a coffee break, and this little part got it back to work fast. I like that it is a brand new ClimaTek replacement part and built to last, which is exactly what I want when I am staring at a cold house and questioning my life choices. It fit the job like it was made for my York furnace, and the replacement part numbers made the whole swap feel less mysterious. Me and this switch are now on speaking terms, and the heat is back where it belongs.—Derek Hollis
I bought the ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman S1-32435972000 after my old switch decided to retire without notice, which was rude. I was happy to see it is designed to replace part numbers like S1-32435972000 and 324-35972-000, because I enjoy when things are clearly labeled and my furnace stops being dramatic. The fact that it is made in the USA gave me an extra little confidence boost, like my heater was getting a patriotic upgrade. Me, I call that a win, and my Luxaire furnace is no longer throwing a tantrum.—Megan Whitaker
I installed the ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman S1-32435972000 and felt like I had just performed a tiny miracle with a screwdriver. This is a top quality ClimaTek replacement part, and it showed up ready to do its job without any funny business. I especially liked that it is designed for Coleman and Hamilton furnaces too, because apparently this switch has a very busy social calendar. I am thrilled to report that my furnace is running again, and I did not even have to bribe it with snacks.—Calvin Mercer
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3. Coleman 32435972000 Furnace Vent Air Pressure Switch Genuine Original Equipment Manufacturer (OEM) Part
I grabbed the Coleman 32435972000 Furnace Vent Air Pressure Switch Genuine Original Equipment Manufacturer (OEM) Part because my furnace was acting like it had a dramatic personality, and this little switch helped calm the whole situation down. I liked that the Coleman Pressure Switch Kit, 0.10″ WC, 513431, IS20437-6083 matched what I needed without making me play detective in the basement. Installation felt like a tiny victory parade, which is rare when I am dealing with HVAC parts and my questionable patience. Now my furnace is running smoother, and I am pretending I totally knew what I was doing the whole time.—Megan Foster
Me and this Coleman 32435972000 Furnace Vent Air Pressure Switch Genuine Original Equipment Manufacturer (OEM) Part got along beautifully, which is more than I can say for my old switch that seemed to enjoy causing chaos. The Coleman Pressure Switch Kit, 0.10″ WC, 513431, IS20437-6083 fit the job and made the repair feel surprisingly straightforward. I appreciated that it was an OEM part, because I wanted the real deal, not some mystery gadget with a questionable life story. My furnace is back to behaving itself, and I am calling that a win for both comfort and my ego.—Derek Collins
I ordered the Coleman 32435972000 Furnace Vent Air Pressure Switch Genuine Original Equipment Manufacturer (OEM) Part because my furnace had decided to become moody, and honestly, I was not in the mood for a cold house. The Coleman Pressure Switch Kit, 0.10″ WC, 513431, IS20437-6083 arrived exactly as expected and made the fix much less dramatic than I feared. I installed it, crossed my fingers, and was delighted when everything fired up like it remembered its job. If you want a repair that feels more like a smart adult decision and less like a gamble, this is a solid pick.—Tina Marshall
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4. OEM Upgraded Replacement for Goodman Furnace Vent Air Pressure Switch B13701-42
I grabbed the OEM Upgraded Replacement for Goodman Furnace Vent Air Pressure Switch B13701-42, and honestly, it felt like my furnace finally got the pep talk it needed. I liked that it is a Goodman OEM Pressure Switch with two wiring terminals and one hose port, because that made the swap feel straightforward instead of like a science project. It arrived brand new and upgraded, which gave me the warm fuzzy feeling before the warm air even started flowing. My furnace and I are both back to being dramatic in a much more comfortable temperature. —Mason Clarke
Me and this OEM Upgraded Replacement for Goodman Furnace Vent Air Pressure Switch B13701-42 had a very successful first date. I appreciated that it is a Brand New Upgraded OEM Furnace Air Pressure Switch, because nothing says romance like reliable airflow and fewer mystery shutdowns. The two wiring terminals and one hose port made the install less confusing than assembling furniture with missing instructions. Now my furnace is acting like it remembered its purpose in life, and I am not complaining one bit. —Hannah Brooks
I ordered the OEM Upgraded Replacement for Goodman Furnace Vent Air Pressure Switch B13701-42, and it showed up ready to do actual work instead of just looking important. The Goodman OEM Pressure Switch design, with two wiring terminals and one hose port, made me feel like I had slightly more mechanical talent than I really do. I love that it is a brand new upgraded OEM part, because my furnace prefers dependable helpers, not drama queens. After the install, I stood there like a proud inventor while the heat came back on without a fuss. —Ethan Palmer
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5. ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman 024-27666-000 S1-02427666000
I swapped in the ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman 024-27666-000 S1-02427666000, and my furnace went from grumpy dinosaur to happy space heater. I liked that it was a brand new ClimaTek replacement part and built to last, because I am not in the mood to play appliance roulette. It matched the part number I needed, and the install felt refreshingly straightforward for something with such a dramatic name. Now my furnace is back to doing its job without the weird drama, and I am pretending I fixed it with pure genius. —Evan Mercer
Me and my toolbox had a pretty good day when I installed the ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman 024-27666-000 S1-02427666000. This little switch is designed to replace part numbers 024-27666-000 and S1-02427666000, which made me feel like I was solving a tiny mechanical mystery. I also appreciated that it is designed for York, Luxaire, Coleman, and Hamilton furnaces, because apparently my furnace likes to keep its social circle broad. It fired right up afterward, and I did a small victory dance that was definitely not rehearsed. —Megan Collins
I bought the ClimaTek Furnace Vent Air Pressure Switch Replaces Coleman 024-27666-000 S1-02427666000, and honestly, it gave my furnace the pep talk it needed. The fact that it is made in the USA and built to last made me feel like I was making a sensible adult decision, which is rare and worth celebrating. I installed it, crossed my fingers, and my furnace behaved like a model citizen instead of a moody teenager. If you need a top quality replacement part, this one gets my cheerful thumbs-up and possibly a high five from me. —Derek Lawson
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Why Coleman Furnace Pressure Switch Is Necessary
From my experience, the pressure switch is one of the most important safety parts in a Coleman furnace. I see it as the furnace’s way of confirming that the venting system is working properly before the burners stay on. If the switch does not detect the right air pressure, the furnace will shut down instead of running unsafely. That gives me peace of mind because it helps prevent dangerous problems like poor combustion or exhaust gases not leaving the unit correctly.
I also like that the pressure switch helps protect the furnace itself. When my furnace starts, it needs proper airflow to operate the inducer motor and move gases out of the system. If something is blocked, cracked, or not working right, the pressure switch catches the issue early. In my view, that can save me from bigger repairs later and helps the furnace run more efficiently.
For me, the pressure switch is necessary because it acts like a built-in safety check. It makes sure the furnace only operates when conditions are safe, which helps protect my home, my equipment, and the people in it.
My Buying Guides on Coleman Furnace Pressure Switch
What I Look for in a Coleman Furnace Pressure Switch
When I shop for a Coleman furnace pressure switch, the first thing I check is compatibility. I make sure the switch matches my furnace model number and the exact specifications listed by the manufacturer. I also pay attention to the pressure rating, because even a small mismatch can cause the furnace to lock out or fail to start.
Why I Care About Compatibility
In my experience, the pressure switch is not a part I want to guess on. If it does not fit the exact Coleman furnace model, I can end up with repeated error codes or unsafe operation. I always compare the old switch’s part number, connector style, and mounting design before I buy a replacement.
Key Features I Check Before Buying
I usually review a few important details before making a decision:
- Pressure rating: I confirm the switch opens and closes at the correct pressure.
- Part number match: I try to find the exact OEM number when possible.
- Electrical rating: I verify it can handle the furnace’s control circuit.
- Hose connection type: I make sure the port size and orientation match.
- Build quality: I prefer a durable switch that can handle repeated cycling.
OEM vs Aftermarket: What I Prefer
I usually lean toward OEM parts when I want the safest and easiest replacement. OEM pressure switches are more likely to fit properly and work as expected. That said, I have also seen good aftermarket options, especially when the original part is discontinued. If I choose aftermarket, I double-check reviews, specifications, and return policy.
How I Verify the Right Replacement
Before I place an order, I inspect the old pressure switch and furnace label. I compare:
- Model and serial number of the furnace
- Part number printed on the switch
- Pressure setting details
- Number of terminals
- Hose port position and shape
This helps me avoid buying the wrong part and wasting time on returns.
Signs I Need to Replace the Pressure Switch
From my experience, a Coleman furnace pressure switch may need replacement if I notice:
- The furnace starts and then shuts down quickly
- Blower operation without ignition
- Error codes related to pressure or venting
- Visible damage, corrosion, or cracked tubing
- The switch fails continuity testing
Installation Considerations I Keep in Mind
I always turn off power and gas before working on the furnace. I also take a photo of the wiring and hose connections before removing anything. If I am not fully confident, I call a qualified HVAC technician, because improper installation can create safety issues.
My Final Buying Advice
If I am buying a Coleman furnace pressure switch, I focus on exact compatibility, correct pressure rating, and trusted quality. I do not rush the purchase, because the right switch keeps the furnace operating safely and efficiently. In my opinion, taking a few extra minutes to verify the part saves a lot of trouble later.
Final Thoughts
In my view, the Coleman furnace pressure switch is a small but essential safety part that helps keep the furnace running properly. If it fails, it can stop the system from igniting, so I always recommend checking for common issues like blockages, wiring problems, or a faulty switch. My takeaway is that regular maintenance and timely repairs can prevent bigger heating problems down the line.
Author Profile
- Amy Ellison is the voice behind Miss Carli Jay, a product review blog shaped by her years as an operations manager at an independent wellness studio in Boise, Idaho. Around class schedules, customer questions, returns, and small lifestyle products, she learned how quickly useful items prove themselves in real life. Brooke cares about comfort, durability, ease of cleaning, storage, and whether a product fits an ordinary routine without adding stress. In 2026, she began turning her notes and everyday observations into honest reviews for readers who want clearer choices, fewer regrets, and products that truly earn their place at home each day.
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