Furnace Pressure Switch Replacement

If yourfurnaceisn’t working due topressure switchfailure, you need to install a new one. If you have no experience withfurnace pressure switch replacement, that’s OK. It’s a job so easy that any novice do-it-yourselfer can handle it. Follow the steps outlined here, and you’ll have yourHVACsystem working in no time. Understanding setup is vital to getting the most out of it. Let’s start with the basics.

How to Replace a Furnace Pressure Switch

Cut the power to the furnace.
Disconnect the pressure switch (wiring and hose).
Now you can remove the switch from the bracket. If your new pressure switch has a bracket attached, it’s probably easier to remove the bracket with the old switch.
Install and secure the new switch.
Reconnect the hose and then the wiring to the pressure switch.
Reconnect the power to the furnace.

Furnace Pressure Switch Symptoms

If your pressure switch is compromised, then your furnace will not startup. Keep in mind that this doesn’t necessarily mean the pressure switch is broken. It might be shutting things down because the furnace is vented properly. If it is indeed the pressure switch, there are a few different sources to consider creating the problem. Check for aclogged hose portor acracked hose betweenthe draft inducer motorand pressure switch. Another culprit to look out for is acompromised diaphragm. It simply may be jamming because of too muchdirt and dust buildup. Lastly, your pressure switch may betoo old.

How to Test a Furnace Pressure Switch

为了测试《e switch, you need tojumporbypass the pressure switch. Once you’ve done that, you can run your furnace to see that it’s venting properly. If it is, then you know the issue is with a bad switch that needs replacement.

Buy Discount Furnace Pressure Switches

Now that you know how to replace a furnace pressure switch, you need a new one for the job. If you don't have one already, go ahead and buy apressure switchat PlumbersStock. We have reliable manufacturers and affordable pricing when it comes toHVAC switches. Be sure to come here first whenever you needHVAC parts. Did you know that you can findmember pricinghere on certain items (typically name brand, MAP priced items) if you log in? For industry professionals buying in bulk, please consider contacting us directly for extra special pricing and extra savings.