FIX: Check your Goodman furnace for a pinched or blocked pressure switch hose. CODE: Continuous LED flashes PROBLEM: This means that your furnace has a reversed polarity of 115 volts. FIX: You will have to correct the wiring polarity after reviewing the wiring diagram. goodman furnace codesCode 1 – Furnace ignition failure. The control board has detected that the furnace failed to ignite. The control board has detected that the furnace failed to ignite. This could be due to low voltage, high resistance, or dirty terminals on the furnace primary control.Remove the access panel on your Trane furnace. Locate the dirty air filter. It should be near the return air duct or the blower chamber’s entrance. Remove the old air filter and slide in a new one. Ensure that signifiers indicate that the new filter is installed correctly. Replace the panel or door to your Trane furnace.The duration of warranty coverage in Texas and Florida differs in some cases. ** For installation in California’s South Coast Air Quality Management District (SCAQMD) only: This furnace does not meet the SCAQMD Rule 1111 14 ng/J NOx emission limit, and thus is subject to a mitigation fee of up to $450. This furnace is not eligible for the ...Feb 25, 2023 · Goodman error code 7P1 is IDL Open the gas valve fully in a counterclockwise motion to make sure the gas supply is turned on. Increase the temperature on the thermostat, and turn the mode to "Heat" after making sure the vents are all clear of blockages. Disconnect the power to reset the furnace, and contact Trane if necessary.Mar 1, 2022 · Code 1 – Furnace ignition failure. The control board has detected that the furnace failed to ignite. The control board has detected that the furnace failed to ignite. This could be due to low voltage, high resistance, or dirty terminals on the furnace primary control. Sep 29, 2022 · If the furnace is running, turn the thermostat off and allow the furnace to cool and the blower to stop operating. Initiate a call for heat from the thermostat and monitor the ignition sequence. 1. The inducer motor should start with no difficulty. 2. The pressure switch should close within a couple seconds of the inducer starting. 3. ERROR LIGHT = Y. SUGGESTED ACTION = Clean Condenser Coils, Check Fan for fault. Code will reset afier cleaning. CODE = C5. AIRF LOW ALERT. STATUS = Outdoor Coil temperature too high for outdoor ambient temperature. DISPLAY = N. ERROR LIGHT = Y. SUGGESTED ACTION = Check for Blocked Outdoor Air or Clean Coil.code (if there is no fault or protection code it will be display “nn”) Normal display Display “--” Operating mode 3—Heating; 4—Forced cooling） Operating fan speed grade (0—Power off) The total capacity requirements of the interior unit The capacity requirements of the revised external unit T3 piping temperature T4 environmert ...How to Replace Your Air Filter. Open the access door on your Goodman furnace by pulling it towards you, revealing the filter inside. Carefully remove the filter by hand. Vacuum any dust or debris that may have accumulated on the filter housing of the furnace. Slide in the replacement filter.The duration of warranty coverage in Texas and Florida differs in some cases. ** For installation in California’s South Coast Air Quality Management District (SCAQMD) only: This furnace does not meet the SCAQMD Rule 1111 14 ng/J NOx emission limit, and thus is subject to a mitigation fee of up to $450. This furnace is not eligible for the ... Hi just hooked up my Goodman furnace and as soon as I put the power on the 3:00 a.m. fuse blue. AnyHi just hooked up my Goodman furnace and as soon as I put the power on the 3:amp. fuse blew. Any sugg … read moreNo Still going up this codes. F01 EE0. HVAC Technician: airheatman. If it lights and goes out try cleaning the flame sensor and see if that helps. Code says the board is not receiving signal that we are getting flame. Ask Your Own HVAC Question. HVAC Technician: airheatman.As an armature, I have some experience troubleshooting furnace problems. I have a 1.5 ton Goodman furnace that cools and heats. The circuit bd. Is B25578-00A. The unit is 25 years old and has been wor … read moreThe rollout switches detect heat where it shouldn’t be. Faulty switches are indicated by nine flashes on the Goodman furnace LED. You can try replacing your furnace filter or contact technicians if it does not work. Call Immediate Services To Fix Your Furnace Issues Today. You may be able to fix most of your furnace issues by following the ...Jul 27, 2022 · I have problem with bryant furnace mod#379CAV036070AGJA just to call for heat the board display code #12 (HK42FZ011) so we wait some time and after that the board run a perfect cycle,run inducer,fire … To receive the Lifetime Compressor Limited Warranty (good for as long as you own your home), Lifetime Heat Exchanger Limited Warranty (good for as long as you own your home), 10-Year or 2-Year Unit Replacement Limited Warranty, 20-Year Heat Exchanger Limited Warranty, and 10-Year Parts Limited Warranty, online registration must be completed ...Jul 13, 2022 · Goodman furnaces are among the most recognized and respected forced-air heating systems. Its reputation was built on a foundation of quality core product development, manufacturing excellence, and engineering expertise. Keeping that reputation alive means continuous improvement through product innovation and the introduction of new features reflecting advances in technology. Many components ... Jan 12, 2023 · Get professional furnace and air conditioning installation, maintenance, and 24-hour repair services with SNAP Heating & Air Conditioning. Our licensed and experienced technicians are available around the clock to provide prompt and reliable service to keep your home comfortable all year long. The Goodman furnace error code 1dl is a common error code associated with Goodman furnaces that indicates a problem with the hot surface ignitor. When this error code appears, it usually indicates that the hot surface ignitor has failed and needs to be replaced. This article will provide an overview of this error code and discuss how to ... 4th of July Deals - Purchase Your HVAC Equipment Direct ...1. the thermostat demand signal is intermittent. 2. Time delay relay or control board faulty. 3. If high pressure switch is present, go to Flash Code 2 information. 4. If a low pressure switch is present, go to Flash Code 1 information. Status LED: Yellow “ALERT” Flash Code 4. Status LED Description: off rotor.Goodman furnaces are among the most recognized and respected forced-air heating systems. Its reputation was built on a foundation of quality core product development, manufacturing excellence, and engineering expertise. Keeping that reputation alive means continuous improvement through product innovation and the introduction of new features reflecting advances in technology. Many components ...The controller will indicate a fault condition by flashing the fault LED. The flashing pattern will be ¼ second on and ¼ second off for each count, if multiple faults are present it will dwell 2 seconds between each fault code, then dwell 5 seconds and repeat until the fault(s) are cleared. Listed below are the fault codes. 1 flash – Not Used https://www.alwaysopen.caGoodman Furnace Fault Codeshttps://www.alwaysopen.caGoodman Furnace Fault CodesJan 4, 2023 · Get professional furnace and air conditioning installation, maintenance, and 24-hour repair services with SNAP Heating & Air Conditioning. Our licensed and experienced technicians are available around the clock to provide prompt and reliable service to keep your home comfortable all year long. Select the brand from the drop down menu. 2. Next select the model number from Model drop down box. 3. Move through the remaining menus. 4. Once all menus have been satisfied push the SUBMIT button. 5. To reset the search for a new search click the SEARCH button.The CoolCloud HVAC application allows contractors to connect and communicate wirelessly via Bluetooth with Goodman and Amana premium air handler and furnace control boards. This provides a more efficient means for servicing and maintaining equipment, making configuration adjustments, gaining equipment status, performing diagnostics, viewing ...Done That · #12 · Jul 25, 2016. You have a 2-stage furnace and a 2-stage AC only outdoor unit. So the only terminals that need to be wired for correct operation are R,C,G,W1,W2,Y1,Y2. If you posted pics of the wiring at the thermostat, furnace board, and outdoor board we could probably straighten this out.HVAC Technician: RobHVAC. No problem. Or you can just touch the two terminal screws together with the wire until the unit turns on. Ask Your Own HVAC Question. FO4 IRC it turned on. HVAC Technician: RobHVAC. OK so that means that the issue is the thermostat not the unit.Trane furnace code 1dl. Troubleshooting a Trane furnace with code 1DL is a common challenge homeowners face. Code 1DL stands for “Inadequate Diffuser Pressure Switch Closure” and can occur due to problems with the furnace blower motor, evaporation motor, heat exchanger or other related components.Welcome to TWINTECH Heating & Cooling Keeping families comfortable for over 30 years. Check out our seasonal promotions. TWINTECH is a full-service HVAC care and maintenance provider located in Durham, Ontario. My brand new 2 ton Goodman is tripping the cb when outside 8/7/2023. I have an issue with my Goodman air conditioner, I do not 8/6/2023. I have a Goodman central air unit washed the condenser clean 8/6/2023. Ok. Opening a new thread I have got a Goodman heat pump unit 8/3/2023. I'm working on a Goodman 5 ton and the high pressure lines 8/1/2023. Code 1 – Furnace ignition failure. The control board has detected that the furnace failed to ignite. The control board has detected that the furnace failed to ignite. This could be due to low voltage, high resistance, or dirty terminals on the furnace primary control.Feb 4, 2017 · Hi just hooked up my Goodman furnace and as soon as I put the power on the 3:00 a.m. fuse blue. AnyHi just hooked up my Goodman furnace and as soon as I put the power on the 3:amp. fuse blew. Any sugg … read more RESULT: No signal from thermostat. FIX: Turn off power and check connections. CODE: One led that flashes. RESULT: Furnace lockout after three attempts to fire. FIX: Locate and correct gas interruption. Reset by lowering it for 20 seconds and then raise it back, furnace will reset itself after one hour. goodman furnace tech support. Its a 2018 model goodman and i get 3 led flashes, the igniter glows real bright and then dims. We tried to jump the pressure switch but the furnace did the same thing it … read moreTroubleshooting b1 fault code on a Goodman communicating air handler HVAC Technician: airheatman , HVAC Technician replied 7 years ago Take a look at this manual on troubleshooting these motors and let me know if you want to get the tester and determine if issue is in motor or boardJul 27, 2022 · I have problem with bryant furnace mod#379CAV036070AGJA just to call for heat the board display code #12 (HK42FZ011) so we wait some time and after that the board run a perfect cycle,run inducer,fire … The AVPTC61D14 air handler is rated for an output of 5 tons. In many cases, this tonnage will be larger than the condenser it is paired with, which increases the overall efficiency of the unit. Please note that this air handler needs a condenser to heat or cool. For straight heating or when backup heat is necessary in a heat pump application ... If the furnace is running, turn the thermostat off and allow the furnace to cool and the blower to stop operating. Initiate a call for heat from the thermostat and monitor the ignition sequence. 1. The inducer motor should start with no difficulty. 2. The pressure switch should close within a couple seconds of the inducer starting. 3.Turn off the furnace power and repair a short or replace the pressure switch. 4. Read three LED flashes to mean your furnace has an open pressure switch circuit or it has an induced draft blower operating. Check the pressure switch hose of your furnace for blocks or an improper connection.Dec 21, 2011 · AMANA & GOODMAN FAULT CODES. 1. One led flash that stays on continuously = No signal from thermostat. Turn off power and check connections. 2. One led that flashes = Furnace lockout after three attempts to fire. Must be reset by lowering it for twenty seconds and then raise it back. After one hour furnace will reset itself. 3. goodman air conditioner error codesOnce again Twin Tech came through and fixed my furnace. A young man by the name of Mitch came by tonight and he was so nice explained everything he was quick he was clean he turned off the lights even when he left the furnace room it s just above and beyond Twin Tech always delivers and I just found out about them last year and I will use no one else but thanks again Mitch you are fantasticspecified on the furnace rating plate and OPERATIONAL CHECKS section of these instructions. When furnace duct(s) supply air outside the space contain-ing the furnace, a return air duct must terminate in the same space as the supply duct and be sealed to the furnace casing. A gas-fired furnace for installation in a residential garage Besides Goodman fault codes, there are the messages which can also appear, status and data related to these codes. This information can give you the idea about any necessary further actions – for example, 3 flashes mean that Goodman pressure switch stuck open, and 2 flashes mean the same part stuck closed.The rollout switches detect heat where it shouldn’t be. Faulty switches are indicated by nine flashes on the Goodman furnace LED. You can try replacing your furnace filter or contact technicians if it does not work. Call Immediate Services To Fix Your Furnace Issues Today. You may be able to fix most of your furnace issues by following the ... AC furnace brands AC furnaces, also known as central air conditioning systems, are important to home comfort and energy efficiency. Many AC furnace brands are on the market, each with strengths and weaknesses. Trane is a popular AC furnace brand known for its... Dec 21, 2011 · AMANA & GOODMAN FAULT CODES. 1. One led flash that stays on continuously = No signal from thermostat. Turn off power and check connections. 2. One led that flashes = Furnace lockout after three attempts to fire. Must be reset by lowering it for twenty seconds and then raise it back. After one hour furnace will reset itself. 3. Jul 13, 2022 · Goodman furnaces are among the most recognized and respected forced-air heating systems. Its reputation was built on a foundation of quality core product development, manufacturing excellence, and engineering expertise. Keeping that reputation alive means continuous improvement through product innovation and the introduction of new features reflecting advances in technology. Many components ... The AVPTC61D14 air handler is rated for an output of 5 tons. In many cases, this tonnage will be larger than the condenser it is paired with, which increases the overall efficiency of the unit. Please note that this air handler needs a condenser to heat or cool. For straight heating or when backup heat is necessary in a heat pump application ...4th of July Deals - Purchase Your HVAC Equipment Direct ... Most popular furnace brands in Canada There are several popular furnace brands available in Canada, and the most popular ones are: Lennox Carrier Trane Bryant York Goodman Rheem American Standard Armstrong Air Napoleon These brands offer a range of furnace... Turn off the furnace or the breaker box. Check the filter to make sure it’s clean, and replace it if necessary. Inspect the furnace and vents for dirt and debris, and vacuum them if necessary. Turn the furnace back on. Check that the thermostat is set to Heat and set for higher than room temperature.CODE: 2 Flashes. RESULT: The furnace is likely blowing cold air because it's dropping the flame. CODE: 3 Flashes. RESULT: Indicates a problem with the pressure switch. CODE: 4 Flashes. RESULT: Indicates a problem with the limit switch. CODE: 6 Flashes. RESULT: Indicates a problem with the polarity or grounding. Post Tags: # Furnace # Goodman # Goodman Furnace Minhazul Abedin With an extensive background and experience in various aspects of construction and renovation, he has established himself as a trusted authority in creating beautiful and functional living spaces.Troubleshooting b1 fault code on a Goodman communicating air handler HVAC Technician: airheatman , HVAC Technician replied 7 years ago Take a look at this manual on troubleshooting these motors and let me know if you want to get the tester and determine if issue is in motor or boardOpen the gas valve fully in a counterclockwise motion to make sure the gas supply is turned on. Increase the temperature on the thermostat, and turn the mode to "Heat" after making sure the vents are all clear of blockages. Disconnect the power to reset the furnace, and contact Trane if necessary.Jan 12, 2023 · Get professional furnace and air conditioning installation, maintenance, and 24-hour repair services with SNAP Heating & Air Conditioning. Our licensed and experienced technicians are available around the clock to provide prompt and reliable service to keep your home comfortable all year long. HVAC Technician: RobHVAC. No problem. Or you can just touch the two terminal screws together with the wire until the unit turns on. Ask Your Own HVAC Question. FO4 IRC it turned on. HVAC Technician: RobHVAC. OK so that means that the issue is the thermostat not the unit.- In short: check your fuse on the circuit board. If it's tripped, replace it. I got this 5 amp fuse on Amazon: https://amzn.to/3O5JUko and here's the Nest t...Mar 24, 2023 · To check for these signs of a dirty or defective furnace sensor, follow these steps: Switch off the furnace. Close the gas supply valve. Open the furnace and locate the flame sensor. Assess the flame sensor for soot and corroding or cracked/damaged sensor porcelain insulation. Most popular furnace brands in Canada There are several popular furnace brands available in Canada, and the most popular ones are: Lennox Carrier Trane Bryant York Goodman Rheem American Standard Armstrong Air Napoleon These brands offer a range of furnace... Last Udated: August 23, 2023. The Goodman 1DL error code is a common problem in Goodman furnaces. It indicates a problem with the low-voltage transformer, which provides power to the furnace’s control board and other components.GOODMAN GAS FURNACE IO MANUAL GMS8 GDS8 GHS8 [PDF] (2005) Gas-Fired Warm Air Furnace, Single Stage, Category 1, Goodman Manufacturing Co., L.P. GOODMAN MES9 & CES9 FURNACE INSTALLATION INSTRUCTIONS [PDF] (2019) GOODMAN FURNACE HIGH TEMPERATURE PLASTIC VENT HTPV SAFETY RECALL [Web article] US CPSC notice code (if there is no fault or protection code it will be display “nn”) Normal display Display “--” Operating mode 3—Heating; 4—Forced cooling） Operating fan speed grade (0—Power off) The total capacity requirements of the interior unit The capacity requirements of the revised external unit T3 piping temperature T4 environmert ...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... Feb 10, 2023 · Besides Goodman fault codes, there are the messages which can also appear, status and data related to these codes. This information can give you the idea about any necessary further actions – for example, 3 flashes mean that Goodman pressure switch stuck open, and 2 flashes mean the same part stuck closed. I have problem with bryant furnace mod#379CAV036070AGJA just to call for heat the board display code #12 (HK42FZ011) so we wait some time and after that the board run a perfect cycle,run inducer,fire …goodman furnace codes The flashing LEDs on your furnace will correspond to a specific fault code that is shown here on their diagnostic chart. Goodman is one of the biggest names in home heating and energy efficient home comfort. Mar 26, 2022 · I am always available if you want to use your “Request Call Option “ And if you don’t get another message right after this greeting it’s because I’m more then likely I’m in the process of writing another message to you. that number is ***** the air conditioning coil that is on top of the furnace. Display Codes D3 – Airflow CFM Mismatch Diagnostic Description Indoor air movers (air handlers / furnaces) cannot supply the airflow required for proper system operation. Possible Cause Misplaced indoor air mower-replacement with incorrectly sized air handler / furnace.To check for these signs of a dirty or defective furnace sensor, follow these steps: Switch off the furnace. Close the gas supply valve. Open the furnace and locate the flame sensor. Assess the flame sensor for soot and corroding or cracked/damaged sensor porcelain insulation.My goodman furnace's diagnostic display reads 88. I was away for work and my girlfriend said it was reading e5 so I got her to cut power and change 3 amp fuse. Now it says 88 and im stumped. Furnace d … read moreSelect the brand from the drop down menu. 2. Next select the model number from Model drop down box. 3. Move through the remaining menus. 4. Once all menus have been satisfied push the SUBMIT button. 5. To reset the search for a new search click the SEARCH button. Select the brand from the drop down menu. 2. Next select the model number from Model drop down box. 3. Move through the remaining menus. 4. Once all menus have been satisfied push the SUBMIT button. 5. To reset the search for a new search click the SEARCH button. Goodman manufacturing. it is displaying code 1dl and the green light is flashing two long, five short. anything I can - Answered by a verified HVAC TechnicianDec 17, 2015 · I need your assistance with the Amana and Goodman furnace E5 error code.After the LED segment 2 shows you E and the segment one shows the 5, this is one of t... Aug 16, 2023 · Possible Causes for 4 flashes on a Goodman furnace. • Check filters andductwork for blockage.Clean filters or removeobstruction. circulator blower speed, orfailed circulator blower. • Check circulator blowerspeed and performance.Correct speed or replaceblower if necessary. • Misaligned burners, blockedflue and/or air inlet pipe, orfailed ... https://www.alwaysopen.caGoodman Furnace Fault CodesMy brand new 2 ton Goodman is tripping the cb when outside 8/7/2023. I have an issue with my Goodman air conditioner, I do not 8/6/2023. I have a Goodman central air unit washed the condenser clean 8/6/2023. Ok. Opening a new thread I have got a Goodman heat pump unit 8/3/2023. I'm working on a Goodman 5 ton and the high pressure lines 8/1/2023. CODE: 2 Flashes. RESULT: The furnace is likely blowing cold air because it's dropping the flame. CODE: 3 Flashes. RESULT: Indicates a problem with the pressure switch. CODE: 4 Flashes. RESULT: Indicates a problem with the limit switch. CODE: 6 Flashes. RESULT: Indicates a problem with the polarity or grounding.goodman furnace codes The flashing LEDs on your furnace will correspond to a specific fault code that is shown here on their diagnostic chart. Goodman is one of the biggest names in home heating and energy efficient home comfort. Done That · #12 · Jul 25, 2016. You have a 2-stage furnace and a 2-stage AC only outdoor unit. So the only terminals that need to be wired for correct operation are R,C,G,W1,W2,Y1,Y2. If you posted pics of the wiring at the thermostat, furnace board, and outdoor board we could probably straighten this out.I have problem with bryant furnace mod#379CAV036070AGJA just to call for heat the board display code #12 (HK42FZ011) so we wait some time and after that the board run a perfect cycle,run inducer,fire …Nov 14, 2022 · operating both with a Nest Smart thermostat about 8-10 yrs old…heating program always ran fine with Lennox…now the program doesn't always work…thermostat is lit up showing it's calling for heat but furnace is not running…I turn thermostat off and back on and furnace starts to run… specified on the furnace rating plate and OPERATIONAL CHECKS section of these instructions. When furnace duct(s) supply air outside the space contain-ing the furnace, a return air duct must terminate in the same space as the supply duct and be sealed to the furnace casing. A gas-fired furnace for installation in a residential garage Dec 19, 2022 · Goodman furnace isn’t blowing hot air. First, check your thermostat if your Goodman furnace isn’t blowing hot air. It should be set to “auto” and “heat.”. If it’s set to “on,” your fan will blow air constantly, even when it’s not actively heating. Next, check your air filter. You should change your furnace air filter regularly.
Last Udated: August 23, 2023. The Goodman 1DL error code is a common problem in Goodman furnaces. It indicates a problem with the low-voltage transformer, which provides power to the furnace’s control board and other components.. Camilagomezz
Turn off the furnace or the breaker box. Check the filter to make sure it’s clean, and replace it if necessary. Inspect the furnace and vents for dirt and debris, and vacuum them if necessary. Turn the furnace back on. Check that the thermostat is set to Heat and set for higher than room temperature.Troubleshooting b1 fault code on a Goodman communicating air handler HVAC Technician: airheatman , HVAC Technician replied 7 years ago Take a look at this manual on troubleshooting these motors and let me know if you want to get the tester and determine if issue is in motor or boardWelcome to TWINTECH Heating & Cooling Keeping families comfortable for over 30 years. Check out our seasonal promotions. TWINTECH is a full-service HVAC care and maintenance provider located in Durham, Ontario.AC furnace brands AC furnaces, also known as central air conditioning systems, are important to home comfort and energy efficiency. Many AC furnace brands are on the market, each with strengths and weaknesses. Trane is a popular AC furnace brand known for its... ERROR LIGHT = Y. SUGGESTED ACTION = Clean Condenser Coils, Check Fan for fault. Code will reset afier cleaning. CODE = C5. AIRF LOW ALERT. STATUS = Outdoor Coil temperature too high for outdoor ambient temperature. DISPLAY = N. ERROR LIGHT = Y. SUGGESTED ACTION = Check for Blocked Outdoor Air or Clean Coil. Dec 17, 2015 · I need your assistance with the Amana and Goodman furnace E5 error code.After the LED segment 2 shows you E and the segment one shows the 5, this is one of t... Goodman furnace isn’t blowing hot air. First, check your thermostat if your Goodman furnace isn’t blowing hot air. It should be set to “auto” and “heat.”. If it’s set to “on,” your fan will blow air constantly, even when it’s not actively heating. Next, check your air filter. You should change your furnace air filter regularly.The controller will indicate a fault condition by flashing the fault LED. The flashing pattern will be ¼ second on and ¼ second off for each count, if multiple faults are present it will dwell 2 seconds between each fault code, then dwell 5 seconds and repeat until the fault(s) are cleared. Listed below are the fault codes. 1 flash – Not Used Purchase Your HVAC Equipment Direct | Goodman AC And Furnace ...Instructions: 1. Select the brand from the drop down menu 2. Next select the model number from Model drop down box. 3. Move through the remaining menus. 4. Once all menus have been satisfied push the SUBMIT button. 5. To reset the search for a new search click the SEARCH button. © 2011 Goodman Manufacturing Company, LP. All rights reserved.Display Codes D3 – Airflow CFM Mismatch Diagnostic Description Indoor air movers (air handlers / furnaces) cannot supply the airflow required for proper system operation. Possible Cause Misplaced indoor air mower-replacement with incorrectly sized air handler / furnace.Having a trane furnace with the code 1DL can be an indication of a problem. Understanding this code and addressing the underlying problem is key to ensuring that your furnace operates as intended. This article will discuss the trane furnace code 1DL, its potential causes, and how you can address them. — The Trane furnace code 1DL is a ... Code 1-3: Indicates that a limit flame switch problem that normally auto-resets after 3 hours. Code 1-4: Represents an ignition problem. However, the furnace will auto-reset after some hours. Code 2-1: This is a sign of gas heating lockout. You need to check if the gas valve wiring is correct..