So, replace it with a new one. If yes, clean the heat exchanger. This neutralizer is specially designed to keep the drain condensate away from the water heater. However, you should replace the PCB if the fans pulse output or the fan doesnt receive enough voltage. Measure the high and low-pressure readings and compare them with the manual. Rheem error codes 92 and 93 are typically found on condensing units. Rheem tankless water heater code 14 is the error indication of an activated overheated film wrap sensor. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. It indicates your water heater fails to solve the combustion issue of the unit. Can I Repair a Bulging Water Heater? Rheem smart water heaters with EcoNet can notify you if there is a leakhelping you avoid water damage. Afterward, measure the voltage of the wiring between the water control and the connector B. origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared . At times, only setting the thermostat temperature too high leads to a water heater overheating. Manage Settings Then, inspect the heat exchanger fins for a clog and release the buildup. Clean out blocked venting. Lastly, check the fan motor for proper operation. What Does Error Code 14 Mean On Rheem Tankless Water Heater? I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. d. Remove outlet pipe bracket and ceramic heater plug. Rheem Tankless Water Heater Error Codes P1, 02. Rheem error code 52 can be caused by loose or damaged wiring or terminals. You may need to replace the thermistor or the PCB. Also, if the heat exchanger is covered by dirt or shoots buildup, it gets too hot and causes the wrap sensor failure. Press and hold the reset button for 3-5 seconds. Test the Molex connector at the PCB and replace it if needed. Turn the power back on and test the water heater. If your Rheem displays an error code 12, ensure all gas valves are open and adequate gas pressure. See our article Why is My Tankless Water Heater Beeping? On the other hand, you should get a neutralizer kit and install it on your water heater if the neutralizer drainage fails. If needed, replace it with a new one. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Turn off the gas and water shutoff valves. First off, turn the unit off at the remote controller or at the circuit breaker. A faulty water flow sensor or PCB can also be the reason for your unit not working. Ensure the flame rod and gas valves wiring are in good working condition, installed correctly, and receive enough voltage. Rheem error code 29 indicates that the outlet temperature is too low. If it has flipped off, flip it on. As a basic inspection, start with verifying that there is water flow through the unit. If your water heater comes on, we bet the culprit is the remote control itself or the wiring between the remote control and the tankless unit. The error code c7 stands for a defective communication between the remote control and the tankless unit. Before starting anything, dont miss to turn off the power and gas supply to your water heater. Water flow is too low, or the shutoff valve is not fully open. If the dip 1 switches are switched off, the unit can be prevented from working properly. If the unit starts, the problem is either with the remote control or wiring. Tankless Water Heater Thermal Fuse Repair (Error 14) Noritz N-0751M Brian's How 2 116 subscribers Subscribe 78K views 9 years ago This is an in-depth guide on how to fix the thermal fuse on a. It helps us diagnose and determine the exact problem with the water heater. The root reasons for this error code include: Using the wrong fuel type. These are: Check the resistance readings of each sensor wiring and replace the sensors if not working correctly. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. If not, you need to replace the bad connectors. Cause: Most of the time, the water heater doesn't start because the hot water tap is not fully open, so the water flow is low. The PCB may need to be replaced if the sensor is working properly. An example of data being processed may be a unique identifier stored in a cookie. Ensure the condensate line is installed correctly and is within specifications. Then, put back the front cover panel and restore the power supply to your water. Rheem Tankless Water Heater Code 14: Reasons & Solutions 01. Blocked vents. Error code 14 means Overheat Film Wrap gets activated. These are mainly used to exhaust the combustion gas and enter the fresh air to continue the ignition process. It represents a water protection fault at the indoor unit. good stuff mate i have a rheem gas 871624pfj tankless it comes with code e 51 ,i turn unit off it clears error code and will work and stay working untill you stop using hot water then back to e51,cleaned filters ,still same any help pls. Next, disconnect the wiring from the remote control and plug your water heater into an outlet. Rheem Tankless Water Heater Error Code 29, 11. You may also need to turn off or replace the circulation system. If this sensor senses that the heat exchanger of your water heater gets overheated, it will pop up this error message. Available in both indoor and outdoor models, Rheem high-efficiency condensing tankless gas water heaters are loaded with features to help you save money and reduce water waste. Your Rheem Water Heater will trigger this error code due to a faulty remote control, a bad PCB, and a damaged wire connection between the tankless unit and the remote. First up, figure out the all responsive factors for the code and fix those. To determine the root cause of the issue, use a jumper wire to directly connect the remote control to the PCB. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. A clogged air inlet filter, dirty heat exchanger fins, and bad heat exchanger thermistor are some culprits behind this issue. I am glad to help. DO NOT alter any other DIP Switch. It is possible for a Rheem unit not to heat water, though it has a flowing water supply and does not display any error codes. If the waters temperature is too high, this should be indicated in the maintenance information. If it is so long to inspect and clean our tankless unit, it is confirmed that it is the reason for this error code. Takagi Water Heater Error Codes [Ultimate Guide]. Of course, dont hesitate to replace the blower motor if it gets broken. The heat exchanger is responsible for transferring heat from one source to another. Solution: Make sure that the gas shutoff valve provides enough gas to the main gas burner, and there is no obstacle. It will alert you that your water heater requires service or that there are damaged or broken components you need to repair or replace. You may need to replace the thermistor or the PCB. Why is Your Water Heater Leaking From Overflow Pipe? Defective Molex Connection End-Notes What Does Error Code 14 Mean On Rheem Tankless Water Heater? Disconnect the remote control, switch the unit on, and open a hot water tap to start it. Rheem error code 66 indicates a problem with the water bypass control. Troubleshooting John Wood tankless water heaters. Rheem Tankless on demand NATURAL GAS Water heater ( NOT PROPANE). Restrictions in the air supply or blocked exhaust venting are the root reason for a tankless unit overheating. 90% of the time, this troubleshooting step will help to eliminate the warning message from the control panel. Hire a plumber and tell him to clean the inlet filter at the cold water connection to the unit. To do so, go through the manual for your water heater. Blocked Water Inlet Filter 3. If there is any hot spot created on the heat exchanger, it will cause the Overheat Film Wrap to fail. Save my name, email, and website in this browser for the next time I comment. Replace the water control assembly or the PCB if necessary. Check the gas pressure; it might be too low, or the gas valve is not fully open. I have just updated this article as per your request. The Rheem error code 31 can be caused by scale buildup on the inlet water supply filter or any thermistors, damaged or bad wiring, and short circuits. Rheem error code can display when the neutralizer or drain pipe gets clogged. All Right Reserved by FIREPLACEHUBS. Leave the unit for 2o minutes. If the error code persists, contact a licensed technician. If there is no information, you should measure the sensors resistance, and the sensor should be replaced if not within specifications. 3. What Is Error Code 14 On Rheem Tankless Water Heater? Follow these steps to test your Rheem tankless water heater's circuit board: Disconnect the power source from the water heater. In the troubleshooting manual, Rheem says that error code 29 stands for too low heat exchanger outlet temperature. Defective Molex connection> Inspect the Molex connections at the PCB.> Remove the connectors and check the resistance going through them. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. If you fail to start the water heater after replacing the remote control or its wiring, we are 100% sure the culprit is the PCB or control board. If you dont get this reading, you should replace the heat exchanger thermistor. Check if the maintenance information displays the heat exchangers temperature. Learn More. Your Rheem Water Heater will pop up this warning message due to the following reasons: Addressing and fixing those issues we mentioned will help you eliminate the error code from the display of the unit. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. Check the air inlet filter, clean it, and ensure the vent pipes are connected correctly. If the venting system gets blocked by dirt, debris, or insects, the harmful gasses fail to go through the pipe. Rheem error code IL indicates a possible scale buildup in the heat exchanger. Like other water heaters, the Rheem tankless water heater has a venting system. Another problem that might occur when the water flow is reduced is the excessive temperature of the heat exchanger. Replacing the control board is the only solution to fix this water heater issue. Now, you may ask- how can I determine whether the suspect is the remote control or its wiring? Founded by Hubert Miles, Certified Master Inspector. Ensure the airflow is not restricted or blocked. However, if the resistance seems good, the PCB may need to be replaced. Replace the PCB or fan if needed. If the readings are looking good, the PCB may be at fault. A defective flow meter sensor, broken wire, and poor connection are the culprits that trigger the error code E4. It will be better if you install the heat tape close to the exit to the main drain to get the best output. Now vacuum out the entire inside area and remove all the dirt and debris. How to use a diagnostic system to repair a faulty heater. If this sensor is at fault, it will not send a signal to the computer, which starts the tankless unit. However, the error code helps you troubleshoot the problem when scale buildup or malfunctions occur. Disconnect the front cover and set it aside. Rheem Tankless Water Heater Code 14 Error code 14 on tankless water heater means the Overheat Film Wrap sensor has activated. There is, most likely, a problem with the blower motor, flame rod, or exhaust venting. Rheem error code 72 means the flame probes are detecting flames. Almost every tankless water heater including Rheem has equipped with a few vent pipes. Remove the cover panel and set it aside. We also broke down what you should do if the capacitor gets faulty. If the code persists, call a licensed contractor. Then, inspect the heat exchanger flapper valve and make it move freely at the vent connection of your water heater. Ensure the condensate flow is free of dirt, debris, and buildups. After cycling the unit if you notice any remaining flame through the view window, I bet the gas control assembly is the culprit. In that article, we described everything that causes your water heater to trigger the error message 12. Error Code 14 An overheat wrap fault. Your tankless water heater will display this wrong message if the venting system fails or doesnt work properly. The unit will throw the error code e51 if the gas inlet solenoid valve is at fault. At 210F, it will automatically shut down and switch on automatically when the temperature goes down to 194F. We will assume that the licensed plumber/installer professionally installed your Rheem tankless water heater. Cause: The blockage in the air supply pipe, exhaust vent, or connection/termination is loose or not correctly done. Error Code 15 The repair guide provides info on how to deal with the heating problems. If the error code 12 persists, contact a licensed technician. Ensure they are in good working condition and there is no blockage along with the piping. Error code 92 is displayed during operation, and when the unit is switched off, error code 93 is shown. However, if you are mechanically inclined, keep scrolling. Error Code 05 Begin with cleaning the air inlet filter. Close the hot water tap and turn OFF the remote. In this guide, we will describe the common error codes this tankless water heater displays. Replace the PCB or the gas inlet solenoid valve if needed. Manage Settings Unline electric water heater units, a Rheem tankless unit displays an error code when something out of the ordinary happens. Ensure there are no loose connections. Takagi Error Codes | Troubleshooting Guide and Repair Tips, AO Smith Tankless Error Codes | Problems | Troubleshooting, John Wood Tankless Error Codes | Troubleshooting Tips, Rinnai Error Codes | Troubleshooting Rinnai Water Heaters, Tankless Water Heater Problems | Troubleshooting and Repair Tips, Noritz Error Codes Guide | Troubleshooting Noritz Water Heaters. #3- Now, remove the monometer tube from the monometer and block the tube end with the finger until the reading reaches 00. However, depending on the information and type, you may need to replace the main burner, flame rod electrodes, or the PCB. The error code 61 popping up on the LED display represents a faulty blower motor. Cracked or broken heat exchangers, using improper fuel type, and clogged venting systems are the reasons behind an overheated heat exchanger. Ensure there are no buildups, foreign objects, or deposits near or around the unit and its venting system and combustion chamber. > Clean out the combustion chamber using an air compressor. How do you clear the error code on a Rheem tankless water heater? Save my name, email, and website in this browser for the next time I comment. When you turn on the hot water faucet, the activated heat exchanger heats the incoming water which rises the temperature. If your Rheem displays error code 38, light the burner for a few minutes and measure the sensors current readings. Ensure no unit parts are blocked, clogged, or obstructed by debris, foreign objects, or dirt and scale build-ups. It backs to the heater and leads to the heat exchanger getting too hot. As for the first step, check whether you are using the correct type of fuel for your tankless unit or not. If the overheat wrap sensor is not functioning, a defective heat exchanger is a leading culprit to blame. If you dont get the appropriate voltage reading (8 to 16 VDC), you should replace the water control assembly. Call the technician because the water heater is overheating. Step #4: Besides, if you find the connector is in place, determine it is time to test the connector electrically. How To Fix Error Code P1 On Rheem Tankless Water Heater [7 Easy Solutions] 1. If needed, replace the unit. If your Rheem displays an error code 66, confirm the unit receives enough water and all wiring connections are in good working condition and tight. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! E5 on a Rheem Tankless Water Heater means there is a high flow rate. Follow the same troubleshooting steps and procedures as in error code 51. Next, you have to check the high and low fire manifold pressures of your tankless water heater and calibrate them if required. Rheem error code 15 means the heat exchanger is overheating. When the ODS gets activated, your tankless water heater will trigger the error code 13. Rheem tankless water heater code 14 is the error indication of an activated overheated film wrap sensor. That way JustAnswer will credit me as the expert for answering your question You can ask a follow up question after rating my services in . Rheem error codes 80 and 81 indicate a gas cut-off or extinction failure. During troubleshooting the error code 31, check the water temperature according to the maintenance information isa temperature of 32F indicates a thermistor that is not making a good connection, and 199F indicates a direct short. How much does it cost to replace the heat exchange in a tankless water heater? You should also measure the Molex connections resistance. Replace the PCB or the communications cable if necessary. Water flow is below the minimum required. You may have to replace the PCB if the readings are within specs. We recommend you read our in-depth guide on Rheem Tankless Water Heater Code 12. Remove front cover. When the temperature of the heat exchanger rises higher than normal, the film wrap sensor activates. After another 20 seconds, switch the remote control on and the water supply too. More about us. They are dirty or defective flame rods, faulty ODS thermocouples, and incorrect burner manifold pressure. Lack of Ventilation In The Room 7. Rheem error code 05 can be caused by blocked air ventilation and exhaust flue systems. If everything looks in good condition, you may replace the PCB. If youre wondering how to do it, take a look at our dedicated guide to learn the detailed procedures. If the flow meter sensor gets defective, the unit fails to send a signal to the computer that is responsible for starting the device. Symptoms, causes, and step-by-step troubleshooting guide to fix the most common problems on Rheem on-demand models. This mainly happens due to the rising temperature of the heat exchanger. This article will cover the reasons why that pesky error code keeps showing up when you try to heat water and how to get rid of it. Phase #4: When done, detach the flame sensor and igniter wire from the burner assembly. It indicates a neutralizer drainage failure. If your Rheem tankless water heater shows an error code 00, try restarting it. We earn a commission if you purchase at no additional cost to you. Home | Sitemap | Blog| Privacy | Disclaimer | Contact| About. If you do so, it will cause a combustion issue, heat the water intermittently, and throw the error code 14. Step #6: In case the resistance is all ok to the connector, then the problem lies in PCB. Rheem error code 82 means there is a problem with the PCB programming. Afterward, remove every speck of dirt, debris, and buildup from the air intake filter. This is a complete guide on Rheem Tankless Water Heater Error Codes. Replace it if necessary. After thoroughly reading, hope that there should be no queries left over on this error code. Then, keep reading till the end. Then, turn on the water heater again, which will reset the heater. We have an in-depth guide on Rheem Tankless Water Heater error code 13 where we broke down the way of adjusting burner manifold pressure. Mid-efficiency and condensing units: Fault in the overheat limiter (OHL). Checking the main burner and cleaning it will also worth it. Common symptoms, problems, and fixing tips. So, make sure the Molex connector doesnt come out at location U. If it does, you should check if the pulse output is from it. Am I right? If there is no remaining flame, you should check the display maintenance for information regarding the flame rod. If the water doesnt flow, we recommend you increase the flow rate. It means the desired water volume is too high that exceeds your desired preset temperature. Make the switch to sustainable living and harness the power of the sun! But before that, dont forget to inspect the combustion chamber as well. Troubleshooting error code 51 involves turning the unit off and on two times at 10-second intervals and inspecting the view window for any signs of a remaining flame. On the other hand, if you want to save money, check out this video to learn how to clean the inlet filter. Clogged condensate neutralizer. Whenever you are encountering this error code, look for the cracked or broken heat exchangers as it is the leading factor for the faulty film wrap sensor. Make sure to check all four sensors. If the inlet screen at the cold water connection gets clogged with dirt & debris, the water will not flow through it. Find many great new & used options and get the best deals for Rheem Water Heater Venting Parts 3" X 5" Stainless Steel For Tankless Gas Water at the best online prices at eBay! The flow meter sensor is also referred to as a water temperature sensor. If the remote control works, we bet the wiring is at fault. Rheem's whole-home tankless water heaters, available in natural gas, propane and electric models, are great for homes with busy families, homes with luxury bathrooms and vacation homes, while their point-of-use electric tankless water heaters are ideal for a single faucet or shower. Ensure the heat exchanger flapper is not blocked and moves freely and that the whole vent system is clean and not blocked. Rheem Tankless Water Heater Error Code 12, 10. Years of experience in the HVAC field have taught him many lessons, not the least of which is that the value of quality and knowledge far exceeds any promised initial savings. Performance Features. How to troubleshoot Rinnai water heaters successfully using Rinnai error codes guide. Rheem Tankless Water Heater displays a lot of error codes due to specific reasons. Consequently, the heat exchanger malfunctions. Why is my Rheem tankless water heater beeping? So, I highly recommend you to call a professional to handle this. If you get the voltage reading, take another measurement at connector B between the White#2 and White#8 wires. If there is any wrong, simply change the fuel type. Replace the water control assembly or the PCB if necessary. Its a device that transfers heat from one source to another. #2- Turn on the water valve and open all the hot water faucets to create the hot water demand. While troubleshooting your Rheem, do not operate it or open the hot water tap, especially while testing it using the Min and Max buttons. If it gets broken, cracked, or covered by dirt buildup, it will get too hot and throw the error message 14. Now check for error codes. If it gets filthy, remove the dirt from the heat exchanger. On the PCB, all the Molex connections go to one location and fit one way. It functions as the heat limiter which monitors the heat exchanger temperature. Now, plug the water heater into an electric outlet and turn on a hot water source. Lastly, ensure the igniter wire harness is intact. After 10 seconds, plug it back in. Corrosion or Scale Deposit On Heat Exchanger FAQs: What are the most common problems with tankless water heaters? An error code E4 on your Rheem Tankless Water Heater indicates that the flow meter sensor gets faulty. 13 Common Rheem Tankless Water Heater Error Codes, 01. Now, you may ask- how can I understand whether the solenoid valves function correctly or not? Rheem Electric Tankless Water Heater Error Code E4, 04. Cause: The water heater and its burner doesn't get enough gas. Fortunately, we broke down every possible culprit responsible for the activation of the Overheat Film Wrap. Check if the water inlet filter or fixture aerator is clogged and unblock it if it is. If the resistance is not according to specifications, it should be replaced. Rheem error code 32 means there is a problem with the heat exchanger thermistor. Check the vertical and horizontal vent lengths and ensure they meet the standards for safe operation. Step #3: First off, check to see whether the Molex connector at location U get detached or loosened. The LED on the PCB is flashing. If you dont get this reading, you must replace the PCB. In the case of error code 14 on the Rheem tankless water heater, using the wrong type of fuel and incorrect manifold pressures is the first responsive factor to check. Run the unit and check if the error code persists. Rheem's tankless hot water heater error code P1 signals an issue with a low flow of water through your heater system, usually due to debris of some kind. Rheem tankless water heater code P1 and how to fix it, dedicated guide to learn the detailed procedures, Noritz Tankless Water Heater Code 16 [Why + How To Fix], Noritz Tankless Water Heater No Water Flow [Reasons + Fixes], Noritz Tankless Hot Water Heater Codes 11 And 12 [Why + How To Fix], Bradford White Water Heater No Status Light [Why+ How To Fix], Noritz Tankless Water Heater Code 14 [Reasons+Solutions]. There are certain steps you can take which include checking the high and low fire manifold pressures and that the right type of gas is used. Sometimes this issue can be fixed by simply restarting the unit. A temperature of 32F indicates a thermistor that does not make a good connection, and 199F indicates a direct short. However, even the best tankless water heaters sooner or later may stop working or be affected by other kinds of problems. If not, the problem could be caused by the blower motor and the PCB. Ensure all vents are not blocked and in good working condition. Due to an overheated heat exchanger, the Overheat Film Wrap fails & the display shows the error code 14. These water heaters may help you qualify for insurance discounts 2. Ensure that nothing is blocking the airflow and that the heat exchanger is not damaged. If the error code goes away, the problem is within the vent system, and if it doesnt, the PCB or the blower motor should be inspected and replaced if necessary. Incorrect Gas Pressure 3. Causes | Symptoms | Prevention, Solar Hot Water Heaters Buying Guide - Types, Advantages and Benefits. The diagnostics become simpler since the Rheem tankless heaters use the electronic control board and advanced technology with an optional remote controller and control panel. Draining and flushing out the tankless water heater is quite straightforward and you can do it by yourself. Error Code 14 The complete sensor is wrapped with black squiggly lines. On demand, tankless units dont have a constant pilot light. Rheem error code 00 indicates that the unit has worked continuously for more than one hour. Blow away dirt & dust from the chamber using the compressor. From this chapter, you can learn about the most common error codes the tankless water heater shows. Besides, your water heater will throw the error code P1 if the water flow sensor goes bad. Check the heat exchanger air inlet and perform regular maintenance to flush the unit with scale buildup. You may need to replace the heat exchanger thermistor or PCB. Every Rheem tankless water heater, either non-condensing or condensing, utilizes the computer board to monitor the heating process, adjust the parameters, and help troubleshoot the potential problems. Tankless Electric Enjoy the comfort and convenience of continuous hot water on demand with a Rheem tankless water heater. See how to troubleshoot the flame failure, not enough, no hot water . Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Next, check the resistance of the heat exchanger thermistor. I've been conducting professional home inspections since 2002. As the heat exchanger is prone to get dirty, take an eye to it first. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. So, in this troubleshooting step, we should inspect the heat exchanger. Watch the following tutorial to learn how to replace the water flow sensor. Rheem error code 79 can be caused by condensation or moisture accumulation over the fan motor or damaged or loose wiring. Check the wiring, the Molex connections, and ensure no scale buildups or debris. 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..