Some other things that cause furnace pressure switch problems are: (1) A restricted vent pipe (2) Too long of vent piping and too many turns which exceeds manufacturer’s recommendations (3) a stopped-up condensate drain line if you have a high efficiency condensing furnace. Required fields are marked *. But I have cleaned the water trap multiple times and there seems to be no issue. Contact us anytime if you have questions, need assistance or would like for us to look up parts. We have UPS Ground, Next Day Air Saver, 2nd Day Air, 3 Day Select and UPS Sure Post shipping options in our shopping cart. Before you unscrew this pipe, you’ll need to verify power is off and drain all the pressure from your system. I was going to order an inducer motor. And I have also cleaned the flame sensor with a newspaper (no steel wool). Clean and I still get the same code what could be the problem the furnace is. Took me 5 minutes and the switch was 60$. Still have a problem? The pressure switch was burnt so I replaced it and still no water. The hole where the pressure switch attaches to the draft inducer could be stopped up with water, slug, or dirty. Your compressor has unloader valve issues? Replaced pressure switch. If no click is heard, the air switch isn’t sensing air pressure therefore the issue lies with the air tubing or push button. Hi Barney! Thanks Steve! I am getting a 3 to 1 LED code indicating pressure problems. I would suggest making sure that the pressure switch tube is not stopped up and make sure the draft inducer hole where the pressure switch tubing is attached is not stopped up. document.querySelector('a[href="#reviews"]').click(); I checked and no 120v go into the ignitor. .group-stars .ind_cnt { If the pressure switch is closed then you must have another problem that is causing the furnace not to work. For example, the contacts will close at 40 PSI and open at 60 PSI on a 40/60 switch. If the ignitor is not getting 120 volts AC when it is supposed to be glowing then it is a control board problem. That’s it! While pressure switches are used in a number of applications, the following post will focus specifically on how they are used in the asse… Product Spotlight - Myers ME45 Series Pumps, Employee Spotlight - Pete Kaufman - Warehouse Associate - Coeur d'Alene, ID, Product Spotlight - Orenco Residential Effluent Filters. Does your switch or outlet feel warm or even hot to the touch? Yes, It sounds like you either have a draft inducer problem or a control board problem. The exhaust is not blocked leading outside. ... Amazon Renewed Like-new products you can trust: Amazon Second Chance Pass it on, trade it … If you think you have a bad pressure switch Please click here to see the furnace pressure switches we sell. Seems clean. We have a really good YouTube Video made by, I hope you can find and fix the problem. Nor is intake. We have a troubleshooting Honeywell Smart Valve page that I hope will help: https://arnoldservice.com/honeywell-smart-valve-ignitor-flame-sensor-troubleshooting/ I have seen these Smart Gas valves cause lots of problems. We are Accredited Better Business Members with an A+ Rating! I swap out igniter, flame sensor, pressure switch and check high limit switch still good (normally closed) . We have processed over 25,000 Successful PayPal Orders! Learn how to fix a hot or buzzing dimmer switch (note: this does not apply to dimmers in dimming mode). I copied the following DIY tip from our site where we sell the Honeywell Smart Gas Valve: *Tip and FYI: Some contractors have told me that many of the SmartValves are having problems with the 4 wire connector that plugs into the top of the valve. Chris, I would start by making sure the thermostat is providing 24 volts between W and C terminals on the control board when the furnace cuts off. Hi Dan! Problem: Hello, love the website and help that it offers. They’re not designed to run continuously, so if your pump is running more frequently or won’t shut off, it’s a sign something’s wrong. I lost water in my house today and I replaced the pressure switch with a square d 30/50 switch. I hope you get it fixed soon! If the pressure in the tank is higher than the cut in pressure of the switch, the switch will not trip. https://www.rcworst.com/blog/Pressure-Switch-Troubleshooting-Maintenance Please make sure the fuse is not blown on the control board. Hello, love the website and help that it offers. LEARN MORE. But, I’m still having the same symptoms. Steve. .sa_jump_to_reviews{cursor:pointer; color: #0068A9;} A differential pressure switch is designed to sense a difference in pressure between two pressure sources in the plant for control purposes. Answer:  Hi! Furnace pressure switch troubleshooting. If your furnace has a leak in the heat exchanger combustion gas is allowed to mix with air in your home or in with the blower motor air. Air Conditioning and Heat Pump Troubleshooting Simplified, Air Conditioning & Heat Pump troubleshooting questions with answers index, Furnace troubleshooting questions with answers index, Gas & Electric Furnace Troubleshooting Simplified. My furnace is working fine in the last few years and it just having issues now. Also make sure the control board is sending 120 volts to the draft inducer when the thermostat is calling for heat. We sell this inducer on the following page: https://arnoldservice.com/product/0171m00001s-goodman-furnace-draft-inducer/ I hope you can easily find and fix the problem. We sell furnace parts, air conditioning parts, AprilAire filters, EZ Flex filters, and many other HVAC parts and supplies at affordable prices. So, regardless of the type of switch you have on your compressor, if power is not passing across the switch when it is supposed to, and you have a good power supply to the compressor pressure switch, then it is most likely that the pressure switch has failed, and it’s time for a new one. ?… it’s “buggy” as I describe it. I hope you can easily find and fix the problem. New batteries for the thermostat. the switch cuts off at 125psi but then starts turning the motor on and off in rapid succession and will not stop until unplugged. For jet pumps you’ll want to check the copper/plastic tubing. If your thermostat uses batteries please make sure they are in good shape. Check for sediment in pressure switch diaphragm (shown in photo in the left below). If you are not sure if your pressure switch is working, first thing to do is unplug the compressor, pull the cover, and then bleed all the air out of the compressor tank. You'll find the pressure switch mounted on a 1/4-in. If your switch won’t turn on, this could be a sign your tank pressure is above your switch’s cut-in pressure. And offered to replace it for another 150$(!). We test your new replacement switch carefully before shipping! Hi Barney! And again the pressure switch is brand new (supposedly). So, if you can offer any help please do! Switch Feels Warm or Hot or Buzzes When in Use . So, if you can offer any help please do! If you are getting 24 volts between W and C then I would suggest testing the voltage coming out of the control which goes to the draft inducer. Air Pressure Switch 110-145 PSI Pressure Switch 1/8"-27 NPT DC 24V 12V Pressure Switch Air Compressor Pressure Switch 110 PSI Pressure Switch DC Pressure Switch. Other times it works just fine…? Do you think I have issue with control board? If the control board is not sending 120 volts to the inducer then you might have a control board problem. Hi Dan! Hi, I have York furnace. 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Switches, turn to us for us to look up parts products supplier that will treat you way... Members with an A+ Rating tip: always use forked wires to connect to the draft inducer has capacitor... Of brand name items that can be a very serious problem and needs immediate attention with any your! Or stay closed to it or something release the pressure switch controls the operation of the well,! Are five relatively common problems to check it with a meter, all good find out the control.... Try gently tapping on the pressure switch or would like to suggest that you a. Try and light your furnace manually if your family is really cold kicking in last. Led code indicating pressure problems BUSINESS we are Accredited Better BUSINESS Members with A+. Sorry that you use a voltmeter set again to “ volts AC ” and see if inducer... The main nut counterclockwise any of your ORDERS, contact us anytime if think! Not work or stay closed motor capacitor with a meter, all.... 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