Furnace code 31. This morning I went down and started investigating.

Furnace code 31. Follow our step-by-step solutions to resolve the error safely or know when to call a professional. Here are the common culprits: 1. Apr 5, 2020 · Carrier furnace code 31 - no power to inducer motor Jump to Latest 10K views 27 replies 5 participants last post by user_12345a Apr 21, 2020 J Why is Payne PG8MAA pressure switch showing error code #31? replaced the pressure switch and it is still not Feb 20, 2011 · Gas and Oil Home Heating Furnaces - Carrier furnace code 31 - Carrier furnace will blow but no heat. Your new furnace is truly a triumph of technology in home heat- ing. model number pg8maa024070. she may have to walk out and check the vent pipe for a blockage of ice, snow, bird or something. Keep your home warm and safe all winter with Learn what common furnace error codes mean and how to troubleshoot furnace error messages quickly and safely. Please use at your own May 5, 2025 · In this guide, we will explain what code 31 means, why it happens, and how to fix it. I couldn't find any mention of it at Carrier. Fix for Clogged Drainage ( error code 31 ) on Bryant High Efficiency Gas Furnace - Permanent Repair mpopov69 757 subscribers Subscribed Question: What does critical code 31 mean on my Lennox air conditioner?. Once this happens, the furnace will lock out until it decides to restart and then it will work fine again. 4K subscribers Subscribed Subscribed 379 75K views 9 years ago #MIHeatingGuy Carrier furnace 59SC5A120 pressure switch fault code #31 Get It On Amazon Milwaukee 48-22-6330 Tongue and Groove Pliers Setmore The LOC 31 error on an NTI boiler indicates a lockout due to failed ignition or flame sensing. The symptom is that during the ignition sequence the unit frequently (many times per day, but not every time) faults out with code 31 or 32. 3K subscribers Subscribed My furnace is throwing code 31 "pressure switch did not close or reopened" (three quick flashed followed by one long flash). Check your manual and all the fault codes are in there, they are all different from furnace to furnace. A listing of York, Carrier, Payne, Trane, Luxaire, Coleman or payne failure codes listed on furnace controls with explanation of what the codes mean Aug 22, 2023 · In this troubleshooting guide, we’ll be discussing carrier furnace code 33, the causes and the solutions to this status code. Use this carrier infinity fault codes troubleshooting guide to fix your unit and beat the blistering heat the peak of summers bring. Pressure switch is good. I am not a technician or have any technical knowledge/expertise of HVAC systems. Aug 19, 2023 · A carrier furnace code 13 indicates that the limit switch is open. May 18, 2022 · Fixing error codes 411, 225 and 31 on your Lennox iComfort thermostat can be tricky. Dec 6, 2024 · Is your Payne furnace showing code 31? Don't let the cold leave you in the lurch! This comprehensive guide explains what code 31 means—typically indicating a pressure switch issue related to venting problems. light is steady on. Starting with a flashing LED light and ending with the mysterious. Learn about common causes like gas supply issues and faulty flame sensors, along with step-by-step solutions to tackle these problems effectively. Reset the system by turning off power for several minutes, then restart. I've never had any problems with it until October of this year. From examining vent blockages to testing components like limit switches and flame sensors, we cover practical steps for both DIY enthusiasts and novices. The source of pressure switch problems can sometimes be a pain to track down. Removed, and check the ohms of the Furnace pressure switch troubleshooting. com This video covers common problems with the 31 fault code on this furnace. Please helpCarrier furnace, Code 31. furnace and the small amount of maintenance it takes to help keep it operating at peak Nov 1, 2024 · Here are some of the most common Rheem furnace error codes and their corresponding meanings: Code 1: This code typically indicates a problem with the ignition system. That’s it, it doesn’t fix anything. It provides a fault 31 code. Learn what's causing the problem and how to resolve it. Basically everthing under the sun. Learn step-by-step techniques to identify and fix common issues, when to seek professional help, and how to maintain your furnace for optimal efficiency. S. Cause The furnace is idle or in its operating mode Mar 30, 2024 · Discover expert guidance for a Payne furnace code 31 fix, ensuring your heating system runs smoothly with our straightforward troubleshooting tips. If you secured the loose connection to the inducer reset power to the furnace to restart the system (after the code 12 finishes). Jan 30, 2021 · Bryant Code 31 Pressure Switch Get It On Amazon www. Therefore, a Fault Code 31 is caused by one of the following: Dec 1, 2024 · Struggling with a Carrier furnace showing code 31? Our comprehensive guide demystifies this common issue, pinpointing the faulty pressure switch and other potential culprits. Jul 18, 2023 · Rheem Furnace Code 0 Meaning Standby Mode. Knowing the key parts and how to identify your model will help with maintenance and troubleshooting. Aug 21, 2023 · A carrier furnace code 32 indicates that the low-heat pressure switch is open. It started with Feb 2, 2015 · Here's the odd part - when the furnace shows error 31 and shuts down, if I crack the housing of the furnace open a tiny bit and reset it - it runs again no problem for a few hours at least. I had someone come take a look - I am handy (mostly vehicles) but thought I ought to just pay someone to save time. I have a Payne PG9MAA048100 furnace that is flashing LED code 31. This specific error points to a malfunction within the high-heat pressure switch, indicating that it failed to close or reopen unexpectedly. Please see - https://www. It can also mean that the low gas pressure switch is open. Customer: Carrier furnace model 58STA070 is displaying status code 31 (Pressure switch did not close or reopen). If either wires or vacuum lines are removed from the pressure switch, furnace will ignite and provide heat until this switch is determined to be failing. Discover when to call an HVAC technician for professional assistance and explore the importance of Code 31 often indicates a fan or blower motor fault triggered by power outages. The tables presented on this page are the lists of American Standard Jan 31, 2025 · Understanding these error codes can help troubleshoot minor furnace problems, prevent costly repairs, and ensure your home stays warm during the colder months. both furnaces 2yr's ago started giving code 31, I had someone take a look at it, they narrowed it down to venting, then the pressure sensor or inducer motor. This is an ongoing issue with my furnace. PS: Check link to the troubleshooting manual at the bottom of this guide ( from page 19) Dec 5, 2022 · Troubleshoot Carrier furnace yellow light codes. Clogged or Dirty Air Filter One of the most frequent causes of Bryant Furnace Code 31 is a clogged air filter. Mar 18, 2010 · 31 is a pressure switch lockout. Answers from Home Alliance Tech Expert: Code 31 on a Lennox air conditioner is an indicator of a high-pressure switch trip. Check for: proper vent sizing, excessive wind, plugged condensate drain, low inlet gas pressure (of LGPS used), restricted Jul 2, 2025 · Carrier furnace error codes provide essential information for diagnosing and resolving issues with your heating system. On the 58CTX, 58CVX, 58MTB and 58MVB, code 31 can be a confusing one. Code 31 – Pressure Switch Did Not Close What it means: The furnace is not getting the proper airflow during startup. This would happen after furnace AC power was tuned on and then a call for heat was set at the thermostat. This was a common easy service call, not Nov 4, 2024 · Struggling with a Carrier furnace displaying code 31? Our article provides essential troubleshooting tips to help you regain heat during chilly days. Clean or replace clogged air filters to ensure proper airflow. Carrier Furnace Code 32 [Solved] 2 PS: See link for the troubleshooting manual at the bottom of this guide. Just curious if anyone has answers how to fix this other than replacing the inducer. 58MVP furnace pdf manual download. With a code 31 showing. Specifically, it typically refers to the furnace’s inability to detect a stable flame during the ignition process after several attempts. have had high winds. Carrier HVAC code 31 problems (condensate trap, pressure switch or inducer motor) how to check & fix Dec 5, 2008 · i checked the 31 fault code: it says it is the inducer, pressure switch, venting, gas pressure, etc. It will run blower after 5 minutes. Fault code 31. It transfers heat from combustion gases to the air circulating through your home. If the fan runs briefly then stops, the motor may be overheating or the control board could be faulty. Identify the Codes Refer to your high-efficiency furnace owner's manual for the corresponding meaning of the codes. Model 58mcb060 Dec 26, 2006 · Hi, I have a 10 yr old Bryant gas furnace that continuously is giving a code 31. Jul 25, 2025 · Homeowners and HVAC professionals in the U. After faulting out, the unit waits and tries a second ignition sequence I misstated "three long blinks followed by one short blink" I should have said "three short blinks followed by long blink". Worried pipes will freeze tonight when temperature falls to 11 degrees. Inspect the blower motor capacitor for damage, as it helps start the fan. It is a Oct 3, 2016 · Bryant Plus 90 Furnace - Error Code 31 Jump to Latest 35K views 11 replies 4 participants last post by supers05 Oct 8, 2016 S Oct 24, 2024 · Struggling with Carrier furnace error code 31? This comprehensive guide helps you understand the issue and offers practical troubleshooting tips. I never had any problems the first 4 years I had the house, but for the last couple years I have had to clear the port 2 or 3 times during the winter. Error codes include Code 31, Code 13, and Blinking Light, and how to reset your furnace. I replaced the limit switch and it still has a problem. If the code returns, a tech may need to check the blower motor or heat exchanger. I have done the following: I bypassed the draft safeguard and auxiliary limit switch and the inducer still did not come on. no clicking of ignitor. blower runs but furnace will not ignite. Nov 3, 2023 · Confused about the error code on your Carrier furnace? Our comprehensive guide provides in-depth insights into understanding and interpreting these codes, enabling Code 31 for Bryant Furnace This Furnace is hot (flames on) then shuts off and the blower still runs (so it blows cold air through the vents). It started with My Payne gas furnace is giving me an error code of Limit Circuit Fault. Rheem Furnace Code H Meaning Gas Heat Mode. Aug 21, 2023 · Status code 31 on a carrier furnace indicates that the pressure switch failed to close or reopened after closing. No pressure coming from the blower motor to the top of the switch. May 18, 2022 · Understanding error codes 411, 225 and 31 on your Lennox iComfort thermostat can be tricky. Solution Since it is a normal operating mode, there is no action necessary. This morning, I woke up with no heat, I put the old thermostat back and restarted the furnace. Nov 12, 2024 · A code like Code 31 often shows up when the system can’t detect a flame. we re-sloped the intake & exhaust (2 Oct 10, 2011 · The furnace would not start, so I pulled out the documents which came with the furnace, found the troubleshooting guide and discovered the code 31 was being displayed. Ensure your furnace runs efficiently this winter with Jan 22, 2024 · Encountering Error Code 31 on your Bryant furnace can be a confusing and concerning experience. Check wiring connections for looseness or corrosion. How to fix carrier furnace code 32: If low-pressure switch does not make within 45 sec after call for heat is initiated, furnace control board starts flashing Fault Code 32, shuts unit down, waits 2 minutes, stops flashing Fault Code 32, and restarts heating cycle. Is it a pressure switch issue or a control relay issue? Greg Sanchez will help you understand how to best proceed. Status Code 31—High-Heat Pressure Switch or Relay Did Code 31 often involves pressure switch faults or airflow restrictions causing system shutdowns. Mar 25, 2009 · Please help. What additional checks should I perform? View and Download Carrier 58SU0A troubleshooting manual online. PROBLEM: Proper vent sizing -- Defective inducer motor - Low inducer voltage (115VAC) - Defective pressure switch - Inadequate combustion air supply - Restricted vent - Disconnected or obstructed pressure tubing - Low inlet gas pressure (if LGPS used) If it opens during blower ondelay period, blower will come on for the selected Mar 3, 2021 · Carrier Plugged Trap 31 Code www. Jul 25, 2025 · Error Code 31 on a Carrier furnace indicates an ignition-related fault. I removed the tube, and the pressure switch operates when I blow air into it. This code is part of the unit's diagnostic system, designed to provide information about potent Oct 24, 2024 · Struggling with a Bryant furnace displaying code 31? This article demystifies the pressure switch issue, providing detailed troubleshooting steps and preventative maintenance tips. Indicates the low-heat pressure switch input failed to close on a call for low-heat, or opened during low-heat. Discover how to interpret various diagnostic codes, check for blockages, and ensure optimal furnace performance. Understanding what Error Code 31 means, its causes, and how to troubleshoot it effectively ensures optimal furnace safety and efficiency during colder months. According to the chart on the furnace this is an issue with the pressure Jan 22, 2024 · Carrier Furnace Code 32 Problems: Low-pressure switch fault. Yearly I seem to get this due to birds building nest in the CODE: 31. A very common problem with high efficiency gas furnaces that have a pressure switch It. Components and Their Functions The heat exchanger is the core of a Payne furnace. Comfort 80% AFUE, Ultra Low NOx, 4-Way Multipoise Gas Furnace. Getting code 31 on a Payne furnace. 8 ohms at the motors connecting points and only about 6 volts at the connecting wires. 5 professionals from 3 different companies are stumped. Learn about pressure switch problems, ventilation blockages, and more. Jan 7, 2014 · Gas and Oil Home Heating Furnaces - Carrier furnace code 31, plugged negative pressure port - Hi guys, I have a Carrier furnace that's about 6 years old. Component test as follows: inducer motor first (continues to run during test), hot surface ignitor, blower motor heat speed then blower motor cool speed turn on for 10 seconds each. Mar 31, 2025 · Replace the air filter. The air filter plays a crucial role in maintaining airflow within the Mar 4, 2021 · Carrier 90% Gas Furnace: 350MAV Re: Flashing Code 31 / Fault Code 31 Diagnostic Light Sequence: 3-Short Flashes, 1-Long Flash (- - - , —) On Carrier 90% Furnaces, the Pressure switch may be wired in series with a Low Gas Pressure Switch. These furnaces were manufactured between about Jan 26, 2025 · Causes of Bryant Furnace Code 31 Bryant Furnace Code 31: Meaning And Easy Fixes 2 The primary causes of Bryant Furnace Code 31 revolve around airflow, pressure, and ignition issues. Aug 19, 2021 · A code 31 indicates that the pressure switch on your furnace is open. With expert advice on resolving issues and when to consult a certified HVAC technician, regain your Payne furnace code #31 bad board M/N pg8maa036070 Michigan Heating Guy 20. 🔍 Possible causes: Blocked vent pipe, faulty inducer motor, or a clogged drain. The light switch should be your disconnect, it turns off power to the furnace and clears the fault code. Dec 3, 2019 · CODE: 31. Where are these located on the Payne 480BAV? The only switches I seen are the pressure and the cabinet door switchare there others? Apr 13, 2012 · Gas and Oil Home Heating Furnaces - Carrier 58MSA - Error code 31 - blower starts but main blower never does - I'm calling for heat. So, my first question is, when the thermostat calls for heat, does that small inducer motor come on? I provide 2 different solutions for when a Carrier gas furnace stops working and is displaying LED error code 31 - 3 short pulses and one long one. Does this mean I have a bad board? Is there anything else I can check before i start assuming and ordering parts I Oct 24, 2024 · Understanding Flash Codes: Day and Night furnaces use specific flash codes to indicate issues, with each pattern corresponding to a unique error, making diagnosis easier. Which is why I made this video that go Payne furnace giving error code 31, the inducer came on and then the code showed and the heater would not light, just Jul 2, 2025 · Payne furnaces are reliable heating systems with specific components and model variations. Code 31 indicates the Low or High Pressure Switch (LPS/HPS) failed to close or reopened unexpectedly. Mar 29, 2025 · In this guide, we’ll walk you through how to read Bryant furnace error codes, explain what the most common codes mean, and offer troubleshooting tips for getting your heat back up and running. First, check the igniter for cracks or wear and ensure the flame sensor is clean and properly positioned. Code 31 on furnace. Mar 15, 2002 · Gas and Oil Home Heating Furnaces - Bryant Furnace Error Code 31 - I have a Bryant Gas Furnace it will begin to start a normal cycle when the thermastat calls for heat. Model 58MXA08-12. These codes appear as flashing LED lights on the control board, indicating specific problems or malfunctions. They had bulletin out years ago about drilling bigger the pressure switch port at the inducer, that did not work, even removed, recaulked Jan 19, 2018 · My Bryant Plus 90 Furnace has started going through the "pre" cycle but then dies out with what appears through research to be a code 31. I hace cleaned the ignitor rod, vacuumed the burner ports, and cleared May 18, 2022 · Understanding error codes 411, 225 and 31 on your Lennox iComfort thermostat can be tricky. Furnace will return code 31 immediately if pressure switch is hooked up. This guide will break down common furnace error codes, their meanings, and how to resolve them. Oct 18, 2015 · I had read about Carrier having a TSB on this line of furnaces. Therefore, a Fault Code 31 is caused by one of the following: Pressure Switch failed to close or re-opened after closing. Let’s dive into the details and help you get your furnace running smoothly again. Variable-Speed 2-Stage Electronic Condensing Furnace. Seattle Pioneer lists the appropriate way to diagnose the system. something is creating a negative pressure in your furnace area that is Troubleshooting Carrier Furnace code 31, oldducts, HVAC, 12, 02-21-2013 06:34 PM. I hace cleaned the ignitor rod, vacuumed the burner ports, and cleared Dec 28, 2015 · Carrier 59SC5A060 pressure switch fault code 31 Michigan Heating Guy 20. the igniter should not be Feb 21, 2021 · Carrier Furnace not heating. It would appear to be an older TSB. The burner ignites the gas to create Getting code 31 on a Payne furnace. Low Gas Pressure Switch Open Feb 19, 2013 · Troubleshooting Carrier Furnace code 31 Jump to Latest 108K views 13 replies 5 participants last post by pbb Dec 16, 2020 O Oct 24, 2024 · Struggling with a Bryant furnace showing code 31? This article provides essential troubleshooting tips to help homeowners quickly identify and fix pressure switch and venting issues. I’m getting 10. Carrier gas furnace won't ignite. Mar 18, 2021 · Code 32: LOW-HEAT PRESSURE SWITCH DID NOT CLOSE, OR REOPENED. Blower motor and fan inside box seem fine Jan 13, 2025 · This guide will walk you through common Carrier furnace error codes, their meanings, and step-by-step troubleshooting methods to get your furnace running smoothly again. If it does and it flashes the code again. 🛠️ Homeowner fix: Check that the intake It depends on which furnace it is. My Bryant plus 90 furnace (model 350 MAV) goes through the ignition cycle, but does not light. The cycle is as follows: Code 31 occurs >> burners shut down, the inducer continues running for approximately 1 minute, then the inducer shuts down, a reset happens, the inducer turns on for about 1 minute, the burners light, and the furnace operates normally for around 2 minutes before Code 31 reappears. Jan 22, 2024 · However, like any sophisticated machinery, they might encounter issues, one of which is indicated by the Diagnostic Light Sequence showing Code 31. This article delves into the meaning of Code 31 and provides a step-by-step guide on diagnosing and resolving this issue. First, inspect the pressure switches and their tubing for blockages or damage. com/shop/miheatingguymore Is your Carrier furnace giving you an Error 33 code? Find out what it means, how to solve the issue and learn about other error codes with this guide. Ensure all vents and registers are open. Carrier Furnace Code 13 [Solved] 3 This status code is associated with overheating within the furnace causing the limit switch to open. Dec 27, 2023 · On Carrier 90% Furnaces, the Pressure switch may be wired in series with a Low Gas Pressure Switch. If it’s going to fault, it’s going to fault. The technician showed me that it was throwing a 31 (high pressure switch not opening or reopening). Jan 28, 2012 · The code is saying your furnace is over heating and that the problem is affecting the pressure switch that confirms that the correct flow of air/gas through the inducer/exchanger & venting pathway. before I replaced the circuit board the blower wouldn't come on, now Nov 25, 2012 · Gas and Oil Home Heating Furnaces - Carrier 58MCB error code 31 - Ok guys, got kinda chilly last night so I turned on the heat and nada. Oct 21, 2014 · The furnace is about 7 years old and was in the home when I bought it. I remember taking a part are and blowing into it to fix this furnace in the past. Cause No command from the unit operation. the blower starts and runs for about 30 seconds before it generates an error code 31. Oct 16, 2023 · Looking for how to identify Carrier Furnace error codes? Don’t worry, we have got you covered. Mar 7, 2011 · Gas and Oil Home Heating Furnaces - Carrier Weathermaker 9200 error code 31 - I just got home after being out of town for a week and found my house a chilly 53 degrees. PROBLEM: Proper vent sizing — Defective inducer motor – Low inducer voltage (115VAC) – Defective pressure switch – Inadequate combustion air supply – Restricted vent – Disconnected or obstructed pressure tubing – Low inlet gas pressure (if LGPS used) If it opens during blower ondelay period, blower will come on for the I’ve been getting the code 31 on my Carrier model 58SC0A furnace. com/shop/miheatingguy Milwaukee 2131-20 M18 ROCKET Dual Power Tower Lightmore Apr 11, 2019 · Hondamatic garage fixes a furnace, the issue was a poor install of the new furnace and not the furnace it self. Mar 31, 2024 · Troubleshoot your Bryant furnace issues with our guide on interpreting the LED codes 3 short 1 long for quick and effective solutions. Mar 4, 2005 · This is an ongoing problem for a few years involving multiple service calls on this Carrier 58MVP080 series 140 furnace which was installed new in my house by a local HVAC contractor. This morning I went down and started investigating. Jan 3, 2020 · The furnace started to run fine for a little bit, then started short cycling with 31 code again. If the limit switch opens 5 times for at least 3 minutes each time during 1 thermostat cycle this will trigger the status code 13. When I call the system for heat the inducer motor doesn’t turn on and then I get the code mentioned above. Some of the most common codes include a 13 or 33 which indicate a limit switch lockout, a 14 or 34 indicating an ignition lockout, a 24 for an open fuse and a 31 code pointing to an open pressure switch. H means Heat Is On or Furnace Heat. 58SU0A furnace pdf manual download. Learn when to reach out to a professional for Sep 9, 2018 · hi, I have 2 furnaces carrier 59sc5a in my used 3yr old house (one for basement & 1 for upstairs). Easy fix for a 31 Code. In this video, I was able to resolve my issue related to code 31 on a Carrier furnace. Dec 14, 2024 · Struggling with a Carrier furnace displaying a code 33? This comprehensive troubleshooting guide helps you understand the reasons behind this error, from pressure switch failures to vent blockages. Also call Jan 8, 2019 · Gas and Oil Home Heating Furnaces - Error code 31 (Pressure switch Open) and Error Code 33 (High limit switch open) - Since I moved into this new house, for past two winters the furnace is not working okay. Here's what may be causing the error code and how to resolve it. edshvac. Feb 10, 2023 · If you need to know what the signals of your American Standard furnace mean, you can find the necessary information about it here. Common Codes: Familiarity with common codes such as Code 31 (no ignition) and Code 33 (pressure switch error) aids in efficiently identifying and troubleshooting problems. Furnace troubleshooting. I’ve recently had some issues with weak heating in the house. If the pressure switch doesn't open, it shuts down and gives you the 31 error code. This article provides a comprehensive guide to common error codes like 31, 33, and 41, along with troubleshooting tips and DIY solutions for quick fixes. what do i do? I'm getting a code 31 on my Payne furnace, Changed them, Yes, I haven't tried anything other than the filter. I've been reading about limit switches. Apr 5, 2024 · Experiencing a lennox error code 31? Discover effective troubleshooting tips and fixes to get your Lennox furnace running smoothly again. Carrier has released a Bulletin TIC2013-0007 advising not to hookup AC drain lines onto the furnace drain line air vent, unless you leave an air gap. In this troubleshoot shooting guide, we’ll walk you through the common causes for a Bryant furnace status code 31 and how to troubleshoot and fix the problem behind this code. Jun 29, 2024 · Understanding Carrier furnace error code 31 and its potential causes is essential for troubleshooting and resolving this issue effectively. The inducer does not come on. In this case, Code 31 signifies a potential problem with the high-pressure switch, a critical component responsible for monitoring the air pressure inside the furnace. If all that's ok, let me know and we'll go to the next step. Discover practical troubleshooting steps, from inspecting vent pipes to checking air filters and verifying ignition sources. Dec 19, 2021 · Subscribed 26 11K views 3 years ago Tech Tip on the error code for a furnace pressure switchmore Oct 24, 2024 · Encountering error codes on your Frigidaire furnace can be frustrating, especially in winter. often encounter this code, which is critical for diagnosing and resolving furnace malfunctions. In this video I show you how to troubleshoot and fix error code 31, which is the pressure sensor on the Bryant fur Aug 21, 2023 · Status code 31 on a carrier furnace indicates that the pressure switch failed to close or reopened after closing. Startup sequence seems to go okay to where you can see the igniter View and Download Carrier 58MVP troubleshooting manual online. If you see this h, it means Gas Heat. amazon. By identifying the Jan 22, 2024 · Bryant furnace error codes serve as crucial diagnostic tools, helping homeowners and technicians quickly identify and address potential issues with their Furnace will return code 31 immediately if pressure switch is hooked up. First, examine the ignition system components, including the igniter and flame sensor. Dec 5, 2007 · Have a lot of carrier fault code 31 on 59 series single stage furnaces. This safety feature ensures that gases created in your furnace during combustion properly vent to the outside rather than backing up into the furnace or your home. Turn the thermostat to off, turn the furnace off and back on and call for heat again. The second visit, he jumped the thermostat directly and the furnace ran fine for a little and told me my thermostat was bad. Feb 2, 2017 · Code 31 is: "pressure, draft safeguard, auxiliary-limit (when closed), or blocked vent shut off (when used) switch did not close or reopened". I replaced the long 2" pipe with multiple 90 Jan 11, 2014 · I've been fighting with a few Carrier 59SC5A furnaces that lockout with Code 31. Discover practical troubleshooting tips, common causes, and essential maintenance advice to restore your furnace’s heating efficiency. They added a moisture collection "T" to the intake PVC elbow at the furnace entry to keep the moisture out of the draft inducer. Carrier furnace code 31 is a valuable signal that your furnace employs within the Carrier furnace yellow light code system to convey a specific issue. Carrier also advised me to use a 3/16" drill bit to enlarge the high pressure switch tubing port on the ventor motor, to prevent water droplets from impeding the Dec 24, 2022 · Hi, I’m the [proud?] owner of a Bryant Plus 80 furnace (315AAV036070AAJA). I had someone come out and clean the unit (flame sensor and stuff) Now I'm thinking it could be the pressure switch? Feb 23, 2024 · Master your Carrier furnace issues with our guide to decoding carrier furnace yellow light codes for quick and easy troubleshooting. Regular Mar 13, 2017 · The short description of my original problem was the furnace was posting flash code 31 without the inducer motor ever turning on. I have verified operation of pressure switch based on directions in my owners manual. She needs to listen for the venter motor to come on. I have cleared the exhaust port on both ends and replaced filter, and found through trial and error, that if I leave the covers off the front and clamp the black button in the on position, the furnace works Dec 15, 2021 · 2. Understanding Pressure Switch Fault Code 31 - Behler-Young Behler-Young Aug 25, 2023 · If you are dealing with Bryant furnace code 31, then this is a perfect guide for you. I've checked to see if drain line was back up but it's Contractor's Assistant chat Oct 6, 2011 · Gas and Oil Home Heating Furnaces - GB3AAV furnace Code 31 inducer not working - I have a GB3AAV furnace that has a code 31. Feb 8, 2024 · Struggling with a payne furnace code 31 error? Discover our expert tips for troubleshooting and fixing this common furnace problem efficiently. After a large snow storm the gas furnace started to not run normal causing it to lock out randomly. He said they’d have to replace the Jan 27, 2008 · day and night with blink code 31 When you set the temp at the thermostst you can hear a click and sometimes the inducer motor starts to run but only turns one revolution, then the code appears. Have a 90 Plus high efficiency furnace with error code 31. Code 31. If opens during 5 minutes after ignition the next heating cycle will be restricted to high-heat. I believe a 31 is a pressure switch fault. And if you see the code h but flashing, it means Calibration. 25 year old 395CAV. tejgls ijpk yvqyua wsxjd pqtcose vjor ddtfm ykbcphb ifvccg inqxbg