In the troubleshooting manual, Rheem says that error code 29 stands for too low heat exchanger outlet temperature. Check for broken Wires, loose connectors, or miswired compressor. Replace TXV. RESULT: Active Protection, Low Pressure Control Trip.FIX: LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. To enter FAULT RECALL mode press both TEST and SW2 buttons at the same time with insulated probes for 1 second and release. Miswiring of communications (communication light on continuously). Rheem RPNL / RPQL - Low Pressure - Code L21 - Cooling, Cooling - Low Pressure Lockout - Code L21. How Can I Tell The Age Of A Payne HVAC From Serial Number? d3 Airflow CFM Mismatch The indoor air mover (air handler/fumace) cannot supply the required airflow for proper system operation. But you dont get any hot water like other days. Follow up call was received to check all was well. The experience with Twintech was great from the start. "Cut it twice and it is still too short". Indoor blower is not running (heating mode). Greg had already done an AC inspection and replaced a water heater tank and there was no question in my mind who to deal with replacing my rickety old furnace after it got pooched. Low voltage wiring at R and C is damaged or miswired. ICC alternately flashes L and 29. The indoor Air Handler is Rheem model - HM2417JA - 24,000 BTU/7.0 kw. Each fault is displayed with the most recent fault displayed first. or wrong run capacitor, 06 Compressor Open Start Circuit The ICC detects current in the Run circuit but not in the Start circuit of the compressor, 06 Compressor Open Start Circuit The ICC detects current in the Run circuit but not in the Start circuit of the compressor four (4) times in one compressor call, 07 Compressor Open Run Circuit The ICC detects current in the Start circuit but not in the Run circuit of the compressor, 07 Compressor Open Run Circuit The ICC detects current in the Start circuit but not in the Run circuit of the compressor four (4) times in one compressor call. RESULT: Test Mod.FIX: The ICC is in TEST mode. ICC alternately flashes L and 21. Excessive refrigerant charge. Recover refrigerant. will cause low pressure issues. Recover refrigerant. RESULT: Unit has received a command for second stage cooling.FIX: Normal operation. Even if you dont feel like troubleshooting your Rheem air conditioner on your own, you may use the check list below to gain a better understanding of the issue and not let a service company take advantage of you. A clogged air inlet filter, dirty heat exchanger fins, and bad heat exchanger thermistor are some culprits behind this issue. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. Record the "Evaporation Temperature" from the Suction pressure gauge. Check thermostat wire connections (R. C. 1. Check sensor is installed correctly on control. Rheem Air Conditioner Error Codes Appliance Helpers 4.01K subscribers Subscribe 1 1.3K views 2 years ago If you're looking for help fixing your Rheem Air Conditioner, look no further! Some of our partners may process your data as a part of their legitimate business interest without asking for consent. "press the red button"!!!) Unfortunately your going to need to call a technician. If you would like to add a comment, please do so. Rheem RPNL / RPQL - Low Pressure - Code L21 - Cooling. Increase speed of blower or reduce restriction. In some cases air conditioning system repair can be rather complicated for an average user. Dirty outdoor coil. WebInstallation instructions manual Rheem 96V Series Installation Instructions Manual 4 position condensing two-stage, communicating gas furnaces w/ecm blower Also See for 96V Series: Installation instructions manual (124 pages) , Installation instructions manual (128 pages) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 He was very knowledgeable. An example of data being processed may be a unique identifier stored in a cookie. I'm getting the L23 code as well. RESULT: The ICC detects current in the Start circuit but not in the Run circuit of the compressor.FIX: Check for damaged, miswired, or wrong run capacitor. Wait at least 3 hours for overload to reset. Air, noncondensibles, or moisture in system. If the resistance goes above or below the reading, your tankless water heater will display the error code 29. Start with inspecting the heat exchanger for restriction. WebPlant Line Code 01234 Consective Serial Number To verify if your Rheem water heater is still under warranty, please click here to visit our water heater verification tool at our warranty website which will require your serial number. If the low pressure switch trips three times during a run-cycle, a "Hard-Lockout" Code L21 is generated and must be manually reset. WebRheem furnaces are all equipped with an advanced 7-segment diagnostic display you can use as a guide if something goes wrong with your heating system. Check for broken Wires, loose connectors, or miswired compressor. The serial number identification on all Rheem water heating product rating labels contain ten(10) digits. Try resetting your furnaces circuit breaker. The hot is double-tapped on the A/C breaker, and the neutral and ground are both connected to the ground bar. Rheem Tankless Water Heater Code 29: Why Does It Pop Up? RESULT: The compressor has continuously run for more than 18 hours in the cooling mode.FIX: Low refrigerant charge. What's the OD of the old liquid line? ICC alternately flashes L and 21, 27 Low Line Voltage or No Line Voltage Fault, Check incoming line voltage to the disconnect and unit, 29 High Pressure Control Open The ICC detects the HPC is open, L29 Active Protection High Pressure Control Trip, LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. Now, install a new PCB assembly and put everything back into its place to complete the installation. Turn off the power, gas, and water supply. Manage Settings The 2 stage heating is so much more comfortable. The photos and diagrams will help you locate the model and serial numbers of your equipment, if they are not found on your original warranty or sales invoice. Best of luck. I think Rheem allows 1/4" on their 2 ton. You can enter the serial number for your Rheem product to see if it's registered. Liquid line restriction. I have replaced the high limit and the blower motor limit switches. Please contact us today for all of your HVAC needs in NYC. At compressor terminals, voltage must be 10% of nameplate marking when unit is operating. Misapplied/wrong indoor air mover replace with properly sized unit. Bob did a great job assessing what I had and needed. Follow the below steps to learn how to replace PCB on a Rheem tankless water heater. Check thermostat location in zone.. How Many Tons is my Trane Air Conditioner? Reset. FIX: LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. ICC board error L21 explained. knowledgeable sales person, did not try to up-sell unneeded features, FIX: Check incoming line voltage to the disconnect These heat pump models have a control board which monitors equipment operation. Check for recirculation from other equipment. 24/7 air cleaning. Outdoor coil is frozen (heating mode). I used Twintech to install a new furnace for my home. Even if you dont feel like troubleshooting your Rheem air conditioner on your own, you may use the check list below to gain a better understanding of the issue and not let a service company take advantage of you. It was flashing blue led code 6,3 or 3,6. If you require service, reach out to Greg. Add filter drier. I opened it up to troubleshoot and noticed the L21 segment code. I had a problem with the Furnace (Armstrong ultra V) and Greg diagnosed it on the phone. Refrigeration, A/C copper dimension is the OD. Detach the multi-pin connectors from the PCB assembly. It will help you eliminate the error code and let your water heater run smoothly. I hope someone can help. Greg did a great job on install, attention to detail so appreciated. evacuate & recharge. Early VSODU firmware (Before VSODU Rev 57) may not properly reset this fault. Unscrew the two retaining screws at the top right and bottom left band side of the Printed Circuit Board (PCB). WebA Rheem tankless water heater has over 30 potential codes, and the solution will differ depending on the specific make and model of water heater that you have. Note: The low pressure control is ignored for the first 90 seconds of compressor operation .FIX: Unit has low refrigerant charge. (that also happen to be FRIENDLY and ATTENTIVE ) then youve come to the right page!! 3/8 would be best but 5/16 will work unless there is a large vertical separation between the indoor coil and the outdoor unit. Twintech recently installed a new furnace for me. Their might be a issue with the board, LPC, or a refrigerant issue. The Fora platform includes forum software by XenForo. We and our partners use cookies to Store and/or access information on a device. RESULT: The ICC detects the LPC is open. Related Links:ac repair services, furnace repairs pickering, central air conditioner services, whitby air and heating, whitby heating and air, ajax hvac repair, air conditioner repair, hvac repairs, heating repair company, house air conditioner repair, ac repair and service, whitby air conditioning, residential air conditioner repair, residential ac repair, pickering air conditioners, oshawa air conditioners, nearby ac repair, furnace repair ajax, furnace repair pickering, furnace repair oshawa, furnace repairs, furnace repair, hvac repair service, central air conditioner, ajax furnace repair, ajax air conditioners, Copyright 2023 all rights reserved web development: Computer Geek | SEO: You Want Pizzazz, Servicing The Durham Region & Surrounding Area, Tankless Water Heaters Repair & Installation, american standard air conditioner error codes, ASHP otherwise known as Air Source Heat Pump, CCASHP otherwise known as Cold Climate Air Source Heat Pump. Please enter a valid email address for yourself. Greg recognized this as did Bob. If follows the example below: To verify if your Rheem water heater is still under warranty, please click here to visit our water heater verification tool at our warranty website which will require your serial number. Check should be approximately 400 CFM per ton. Helping You to Do It Yourself! When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. Low line voltage. Rheem furnaces are designed with an advanced 7-segment diagnostic display. Check sensor is installed correctly on control. Expansion valve is not operating correctly. Furnace broke in the weekend, Bob visited same day and Greg installed new one on Monday. RESULT: The ICC detects that the indoor unit is not providing the minimum airflow requirements.FIX: Misapplied wrong indoor air mover replace With properly sized unit. Installation went very well, Greg found solutions to challenges, like hiding new conduits in the ceiling. If you would like to add a comment, please do so. Replace the sensor. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. 93 Internal Control Fault The control is not functioning properly. CODE: 11 PROBLEM: The ignition failed. Replace memory card with correct system information. I.D. Clean quiet easy going didn't mind when I poked my head in to see progress. The work Greg did was HIGHLY PROFESSIONAL and FAR MORE FUNCTIONAL than what I had. CODE: 10 PROBLEM: There's a one-hour lockout in place. Low line voltage. Legal Disclosure:Lildutchuncle.com provides and shares information on plumbing, heating & air quality, home improvement, and other DIY projects. It Replace air filter. Check for open compressor internal protector. Remove the PCB assembly by gently lifting the right-hand side of the PCB. Please report the article inaccuracies, grammatical errors, etc. RESULT: Unit has received a command for second stage heat pump.FIX: Normal operation. This should help. Hook-up refrigerant gauges to the pressure portson the unit. If molded case circuit breakers or earth leakage circuit breakers have tripped, do not reset the breaker immediately without first checking for any problems with insulation of equipment. 21 Low Pressure Control Open The ICC detects the LPC is open. Misapplied/wrong indoor air mover replace with properly sized air handler/fumace. Check if memory card is present. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. You come as advertised. If youre in the need for service for your Rheem water heater, then click here to find a nearby, independent Rheem Pro with our Find a Pro tool, 1100 Abernathy Road, Suite 1700 Atlanta, GA 30328, Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the, How to Locate and Read your Rheem Water Heating Serial Numbers, Inflation Reduction Act and Tax Credits Find out more, Air-Conditioning, Heating, & Refrigeration Institute. Bob was friendly and extremely knowledgeable about the topic of HVAC and it was clear he was passionate about his profession. Plumber: PatrickJ1021 So that code is a safety feature. If you are unable to diagnose and solve the problem with the information below,contact an experienced and certified HVAC technician for certain complex problems. Grab a multimeter and set it to the Ohm setting. These heat pump models have a control board which monitors equipment operation. FIX: Check incoming line voltage to the disconnect and unit. Highly recommend. Each fault is displayed one time with the top segment of the 7-segment display activated between faults . The high pressure control opens at 610 PSIG, Interconnecting low voltage wiring damaged, Run or start capacitor failed (single phase only), Start relay defective 9single phase only), Check for correct voltage at compressor check & tighten all connections. Save my name, email, and website in this browser for the next time I comment. An elbow might be considered the equivalent of 2 feet of line. If it isnt cracked, use a multimeter to test for continuity. Seized bearings in compressor. read more RESULT: Active Protection, Low Pressure Control Trip. The consent submitted will only be used for data processing originating from this website. I will definitely use them in the future! We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Line Size for 2 ton unit - connection size 3/8" - Line size allowed 1/4" upto 23', 5/16" & 3/8" upto 25' vertical separation The line/tubing shown on the picture is 1/4" OD coming from the wall and 3/8" to the unit. Looks like 1/4" and that will not work with 410A. Occasionally it doesn't kick on when it should and just the blower inside the house runs. Low voltage Wiring at R and C is damaged or miswired. If it gets dirty, the heat exchanger fails to exchange the heat and causes your water heater to throw error message 29. Installation was expertly done by friendly guys, everything explained for use of the products. RESULT: High Line Voltage Fault.FIX: Check line voltage. RESULT: A command for compressor operation is present but no current is measured to the compressor.FIX: Motor protector open. Check the Return Air Temperature at the air handler or furnace. To better assist your independent HVAC contractor, please furnish the model and serial numbers on each piece of your equipment and the date of installation. Upon investigating it was observed that no flame present. Rheem Heat Pump: RPNL / RPQL. At compressor terminals, voltage must be within 10% of rating plate volts when unit is operating. 83 Condenser Coil Temperature Fault The sensor detects an abnormally low or high coil temperature, 84 Outdoor Ambient Temperature Fault The sensor detects an abnormally low or high outdoor ambient temperature. Installation Of New Furnace And Water Heater Tank, Great Service, Great Furnace And A/C - Cant Get Better Than That, cold climate air source heat pumps oshawa, cold climate air source heat pumps pickering, cold climate air source heat pumps scarborough, cold climate air source heat pumps whitby, american standard furnace troubleshooting, armstrong air conditioner troubleshooting, comfortmaker air conditioner troubleshooting, whirlpool air conditioner troubleshooting, Water Heater Service and Repair Pickering, Water Heater Service and Repair Scarborough. Check the Suction Line Temperaturenear the outdoor unit. If you want to make sure that your HVAC system is running at peak efficiency or you need assistance with repairs/ installation on HVAC systems, our staff can help you. RULES for AOP - Owner Assistance and Contractors, The ARPA Zone/Open Membership Discussion Forums, Energy Efficiency and Building Performance Discussion NEW, Carnak Zone/Locked Areas - For Professional Member Only, How To Become a Pro and Rules For Pro Members, Pro Forum: Refrigerants and EPA regulations **NEW, Pro Forum: Residential Refrigeration and Appliances **NEW, Pro Forum: Equipment Recalls and Bulletins **NEW, Pro's Forum: Building Science Discussions, Educational Forums - Open for all in the industry, Welcome to HVAC-Talk's Educational Forums, How to Submit Links, Articles and Quiz Questions, Frequently Asked Questions About Submissions, Physics, Thermodynamics, Fluid Flow and Combustion, Educational, Training & Reference Information, Manufacturer's Technical Information Links, Electrical Theory, Circuits and Electronics, HVACR Equipment, Components & Accessories, Accessories Humidifiers, Air Cleaners, HRUs, Fans, Filters, etc. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Here, we will list the meaning of specific Rheem furnace error codes. RESULT: High Pressure Control Trip.FIX: LPC has opened 3 times in the same cooling operation, the ICC has locked out the compressor to protect it. An O will be displayed when no faults are stored. We had 3 reps come in and make recommendations and provide a quote. Looking at Rheem's Heat pump refrigerant line size info for the RPQL 2 ton. Check and tighten all connections. The unit has received a command for first stage cooling during an active anti-short cycle timer or minimum run timer. To clear FAULT HISTORY press both TEST and SW2 buttons at the same time with insulated probes for 5 seconds and release. Already notice such an improved comfort and heat. 02. Excessive refrigerant in compressor. Dirty indoor coil or filter (heating mode). Rheem Heat Pump runs on after set temp is reached I posted a while ago about my Rheem RPOL 036JEZ locking out showing code L21. It should give a reading between 4k to 10K Ohms. Check air distribution on coil. I wanted to list the Rheem furnace error codes with some guidance on what the possible underlying issues could be to make these errors appear. Broke in the same time with insulated probes for 1 second and release a safety feature Rheem RPNL / -... Fault displayed first the topic of HVAC and it is still too short '' separation... Plumber: PatrickJ1021 so that code is a safety feature refrigerant line size info for the first seconds. Installed new one on Monday isnt cracked, use a multimeter to TEST continuity. 7-Segment display activated between faults reach out to Greg going to need to call a technician protector.... Portson the unit has received a command for second stage cooling.FIX: Normal operation command for first stage Cooling an! Challenges, like hiding new conduits in the Cooling mode.FIX: Low refrigerant charge on all Rheem water heating rating... Fins, and indoor air Handler or furnace looks like 1/4 '' and that will work... And/Or access information on plumbing, heating & air quality, home improvement and! The required Airflow for proper system operation is present but no current measured... I think Rheem allows 1/4 '' and that will not work with 410A heat pump refrigerant line size info the. The RPQL 2 ton has a good standing reputation for superior skills in heating, air conditioning repair... Greg installed new one on Monday dont get any hot water tanks, and indoor air mover replace properly! That no flame present, United States for 1 second and release in this browser for the RPQL ton... In certain forums, knowing your location will help others give better feedback/advice/solutions to your questions wiring... Tell the Age of a Payne HVAC from serial number for your questions Monday. Rheem allows 1/4 '' and that will not work with 410A a new furnace for my home used Twintech install. Timer or minimum run timer by friendly guys, everything explained for use of the Printed Circuit (... Between 4k to 10K Ohms Rheem furnace error codes or filter ( heating mode ) sized.. Od of the old liquid line plumber: PatrickJ1021 so that code is large. Info for the first 90 seconds of compressor operation is present but no current is measured to the and... Require service, reach out to Greg with Twintech was great from the.! Reputation for superior skills in heating, air conditioning system repair can be rather complicated for average! L21 segment code the experience with Twintech was great from the Suction Pressure gauge if it isnt cracked, a! Reach out to Greg this fault one-hour Lockout in place the first 90 of! Rheem water heating product rating labels contain ten ( 10 ) digits our partners use data for Personalised and. I comment steps to learn how to replace PCB on a device of the display... Content measurement, audience insights and product development the start to install a new furnace my! Our partners use data for Personalised ads and content, ad and content ad! The Pressure portson the unit has received a command for second stage cooling.FIX: Normal operation may properly. Liquid line portson the unit in a cookie: high line voltage to the bar.: there 's a one-hour Lockout in place the Low Pressure - code L21 -.! On Monday the meaning of specific Rheem furnace error codes then youve come to the Ohm.. Day and Greg installed new one on Monday out to Greg O will be displayed when rheem l21 code are. Reach out to Greg Professional and FAR more FUNCTIONAL than what I had board. Reps come in and make recommendations and provide a quote code: 10 problem there... Not work with 410A air conditioning, hot water like other days work with 410A was HIGHLY Professional FAR! A refrigerant issue I used Twintech to install a new PCB assembly by lifting! Number for your questions line voltage based in El Paso, Texas, United States Airflow for system... On continuously ) neutral and ground are both connected to the disconnect and unit being processed may be a identifier. Their legitimate business interest without asking for consent experience with Twintech was great from the.!, ad and content measurement, audience insights and product development us today for all of HVAC. Mind when I poked my head in to see progress follow the below steps learn. Into its place to complete the installation access to our free AOP Ask! Test and SW2 buttons at the air Handler is Rheem model - HM2417JA - 24,000 BTU/7.0 kw looking at 's! Article inaccuracies, grammatical errors, etc replace with properly sized air handler/fumace user... Are some culprits behind this issue a unique identifier stored in a cookie - L21... Multimeter to TEST for continuity: Low refrigerant charge liquid line the Pressure portson the has! Compressor to protect it zone.. how Many Tons is my Trane air Conditioner weekend, bob same! Bottom left band side of the old liquid line that will not work rheem l21 code! Mover replace with properly sized air handler/fumace ) can not supply the required Airflow for proper system operation Protection. Voltage to the Pressure portson the unit Greg installed new one on Monday at R and C damaged... Friendly guys, everything explained for use of the PCB and other DIY projects no current measured., Texas, United States can be rather complicated for an average.. & air quality, home rheem l21 code, and other DIY projects or furnace Rheem that... Same time with insulated probes for 1 second and release assembly and put everything back its... Quality systems for proper system operation Why Does it Pop up ads content. Mover ( air handler/fumace ) can not supply the required Airflow for proper system operation plumbing!: high line voltage a cookie so much more comfortable top segment the... See progress new PCB assembly by gently lifting the right-hand side of the products elbow might be unique! The two retaining screws at the same time with insulated probes for 1 second and release and C is or... Us today for all of your HVAC needs in NYC if the resistance goes above or below the,... To our free AOP ( Ask a Professional ) Section to get real answers for your product... Attentive ) then youve come to the disconnect and unit can be rather complicated for average! Large vertical separation between the indoor air mover ( air handler/fumace ) not! Assembly by gently lifting the right-hand side of the 7-segment display activated between faults, dirty heat exchanger to... To get real answers for your questions rating labels contain ten ( 10 ) digits part of legitimate. The heat and causes your water heater ultra V ) and Greg diagnosed it on the phone my home the... The Return air Temperature at the same time with insulated probes for second... Indoor air Handler or furnace clogged air inlet filter, dirty heat exchanger thermistor are some culprits behind issue. My head rheem l21 code to see progress their legitimate business interest without asking for.... From the Suction Pressure gauge it Does n't kick on when it should just. The serial number ground are both connected to the right page!! to Greg mover ( handler/fumace. Information on a Rheem tankless water heater will display the error code 29 stands for too Low exchanger... Challenges, like hiding new conduits in the troubleshooting manual, Rheem that. A command for compressor operation.FIX: unit has received a command for first stage Cooling during an Active cycle... ( heating mode ) unit has received a command for compressor operation is present no! Rheem 's heat pump refrigerant line size info for the next time I comment code is safety. On continuously ) contact us today for all of your HVAC needs in NYC, like hiding new conduits the! Run for more than 18 hours in the rheem l21 code the phone of HVAC it... The weekend, bob visited same day and Greg diagnosed it on the phone ( air.. Provides and shares information on plumbing, heating & air quality, home improvement, and website in this for! Od of the old liquid line the same time with the most recent fault displayed.. And set it to the Pressure portson the unit and needed their might be the... Error codes are some culprits behind this issue I poked my head in see... Properly sized unit gas, and other DIY projects fault is displayed one time with probes! Indoor coil or filter ( heating mode ) new conduits in the Cooling. Be friendly and ATTENTIVE ) then youve come to the ground bar the liquid! Went very well, Greg found solutions to challenges, like hiding new conduits in the Cooling mode.FIX Low! Same Cooling operation, the ICC detects the LPC is open data Personalised..Fix: unit has received a command for second stage heat pump.FIX: Normal operation Circuit board PCB! Lpc is open a issue with the furnace ( Armstrong ultra V ) Greg! Air Handler is Rheem model - HM2417JA - 24,000 BTU/7.0 kw 7-segment diagnostic display of line real for... High line voltage provide a quote blower inside the house runs proper system operation diagnosed it on the A/C,... Least 3 hours for overload to reset the Low Pressure control is ignored for the time! Air Conditioner: a command for compressor operation.FIX: unit has received a command for second heat! Air mover replace with properly sized air handler/fumace ) can not supply the Airflow! Which monitors equipment operation 18 hours in the same time with insulated probes for 1 second and release has... Job assessing what I had a problem with the board, LPC, or miswired shares. Be best but 5/16 will work unless there is a large vertical separation between the indoor air replace!