rheem tankless electric water heater error codes

Your Rheem tankless water heater will trigger the P1 error codes if there is a lack of sufficient water flow to activate the unit. Lastly, check the fan motor for proper operation. Rheem tankless water heater starts malfunctioning over time. If you have this code, it is important to check your vent pipe to make sure it is clear and not blocked. event : evt, Therefore, our top advice is that you contact a professional plumber when you see an error code. } Ensure no unit parts are blocked, clogged, or obstructed by debris, foreign objects, or dirt and scale build-ups. The inlet fuses to the power supply should also be in working order and ensure that the hot and cold water lines are not crossed following the installation. A false flame being detected may also necessitate a service call, yet there are certain steps to take first. There are a few reasons why the reset button might trip. Why Do You Feel Sticky After Swimming? There are different reasons for why the water would flow through the water heater, but nothing actually occurs, specifically, that the water is not heated. It may be the case that both the fan motor and the control board need to be replaced. The alarm sounds every 60 seconds when the tap is open. Solution: If you cannot find the problem in the venting system, and cannot remove what is blocking the regular operation, call the service. Here faulty means either the blower motor itself gets defective or its housing gets clogged with dirt or debris. An error code E4 on your Rheem Tankless Water Heater indicates that the flow meter sensor gets faulty. Check if the maintenance information displays the heat exchangers temperature. Am I right? Check if the maintenance information displays the ambient air temperature. Rheem error code 11 can be caused by low gas pressure, faulty or improperly wired gas solenoid valve, and igniter. Run the unit and check if the error code persists. If you are calling the manufacturer, make sure to have the following info ready: A list of Takagi error codes for easy troubleshooting of Takagi tankless water heaters. Obstructions could also result in error code 14 though if you cannot find one then consult a professional to troubleshoot the fault. For a condensing unit, confirm that the drain line is not blocked, and the shipping cap is removed. Rheem error code 05 can be caused by blocked air ventilation and exhaust flue systems. Often, understanding how to rectify each error code requires an understanding of how the device works as a whole and how each part works together. Get FREE quotes from licensed Plumbers in your area today. If nothing works for you, I suspect the PCB is the culprit. I have noticed that this problem occurs when the flame rods are dirty and needs to be cleaned. To fix this issue, you need to slow down the flow rate. Replace the access cover and turn on the breaker. Before you try anything else, reset your Rheem water heater. If your Rheem displays an error code 29, ensure the heat exchanger is clean of any buildups. Understanding Noritz error codes and troubleshooting Noritz water heaters. Error code 92 is displayed during operation, and when the unit is switched off, error code 93 is shown. Rheem error code 76 indicates a failure in communication with the remote control. After another 20 seconds, switch the remote control on and the water supply too. 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. Rheem error code 34 can be caused by scale buildup on the ambient combustion air sensor, blocked vent terminals, fan blades, airflow, damaged or bad wiring, and short circuits. A flame failure is a little different from a failure to ignite and will likely require a specialist to take a look. Finally, ensure the Molex connector is in good condition. Rheem water heater flashing red light 4 times. Rheem error code 31 indicates a malfunction with the water inlet thermistor. This is a complete guide on Rheem Tankless Water Heater Error Codes. Begin with cleaning the air inlet filter. Error code 99 can indicate that there is a blocked flue fault that is causing the blower motor to be unable to vent. Simple. window.mc4wp = window.mc4wp || { Disconnect the vent structure from the unit. Rheem error code 71 means a problem with the gas inlet solenoid valve. The causes of the E5 code appearing on your heater's display include too much water flow, incorrect gas pressure, blocked air intake, clogged exhaust, dirty air filter, lack of airflow in the room . See if there is anything blocking the air vent on the device. Check the heat exchanger air inlet and perform regular maintenance to flush the unit with scale buildup. As mentioned above, there are several more error codes you can potentially encounter with a Rheem tankless water heater. However, depending on the information and type, you may need to replace the main burner, flame rod electrodes, or the PCB. Again, there should be no obstructions to the airflow and the vent terminal should be clear. Rheem error code 11 indicates that the ignition has failed. Rheem error codes 92 and 93 indicate that the neutralizer is due for a replacement. Rheem Tankless Water Heater Error Code 12, 10. This is a complete guide on Rheem Water Heater Blinking Light Codes. There should also be gas to the unit with the valves fully turned on and the unit itself should have the correct gas volume and pressure which can be checked by a specialist. The valves, the main burner, the flame rod electrodes, or the PCB may need to be replaced. The minimum flow rate should also be met to make sure that the tankless water heater fires. Rheem Tankless Water Heater Code 11: The Reasons & Solutions 01. Rheem tankless water heaters are among the most reliable you can buy, but like any technology, they will eventually encounter issues. Then, locate the two terminals connected with the remote control. You could try to inspect the heat exchanger thermistor or flush the unit and remove any build-up of limescale (see also What Is Limescale? ). The fan motor should also have the right voltage and may be water damaged due to condensation. The wiring for the flame rod may also be damaged, and the flame rod needs to have sufficient voltage. Also, we broke down the troubleshooting steps to clear the message. Afterward, take out these two screws from the top of the computer board. What does E4 mean on a Rheem tankless water heater? Otherwise, you should replace the water flow sensor. These can include checking for damage to the thermistor wiring and to check the thermistor for the right number of ohms. If you encounter an code, it will be displayed on your Rheems digital thermostat display. Before you make a service call, this is a good time to check the thermistor wiring for any damage or the thermistor for a limescale build-up. You may need to replace the thermistor or the PCB. How to Re-Light Your Rheem Tankless Water Heater. Our comprehensive Rheem Water Heater error code guide will explain common issues,. Touching any wires while the power is on can cause an electric shock. See an examplehow to descale a Bosch tankless heater. Comprehensive step-by-step guide: How to install a hybrid water heater with essential tips and expert guidance for a successful installation. But like any other piece of technology, they develop faults. If this doesnt work, your next step is to check the gas valve wire connections to ensure they are secure. Heres what you can do: Code 12 signifies that the water heater does not detect a flame. Error code 14 on tankless water heater means the Overheat Film Wrap sensor has activated. Check that the vents are connected properly with no obstructions, the correct materials should have been used for the installation. I have a Rheem water heater that is currently displaying two error codes: A104 and A105. It will be better if you install the heat tape close to the exit to the main drain to get the best output. Check the gas pressure; it might be too low, or the gas valve is not fully open. The Rheem error code 14 can be caused by using the wrong type of gas, blocked or obstructed airflow, vent terminals and exhaust vents, and faulty or a damaged heat exchanger. Rotate the thermostat to achieve your desired water outlet temperature. For this reason, you are best to check the owners manual for your device for an accurate, up-to-date list of codes. Knowing that the ignition has failed is straightforward enough yet finding out why can prove difficult. Check the vent terminal and exhaust venting. If none of these measures works then call in a professional to replace the control board (also known as a PCB). The heat exchanger may also be suffering from separations or cracks. The red flashing light on Rheem tankless water heaters means that the heater has reached a lockout status and requires immediate repair. Use the error code guideline below to identify the problem, or. Next, access maintenance information to determine the flow rate. Restart the unit and adjust the high-altitude fuel type chip and DIP switch. 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. Then, inspect the heat exchanger fins for a clog and release the buildup. This means that the flow meter is not sending a signal to the computer which starts the machine. If its empty, dont forget to fill it with gas. To restart the heater, turn off the power by switching the switch that controls the power and the switch that controls the heater at the circuit breaker. Apart from these, defective combustion systems, problems with the main burner or pilot, and faulty motor are other culprits responsible for throwing this error code. However, you should replace the PCB if the fans pulse output or the fan doesnt receive enough voltage. It represents a water protection fault at the indoor unit. The venting should also be adequately sealed and you may want it inspected by an expert. Afterward, remove every speck of dirt, debris, and buildup from the air intake filter. You should replace the gas control assembly if there is a remaining flame. The most common codes include Codes 5, 11, 13, and 29. If your Rheem displays an error code 12, ensure all gas valves are open and adequate gas pressure. The neutralizer drainage ports should be clear and the neutralizer drainage line (see also 7 Awesome Tips For Sewer And Drainage Line Cleaning) outside the unit must be clear too. LPG users check Propane bottle level. If necessary, replace the remote control, remote control wiring, or the PCB. Rheem Electric Tankless Water Heater Error Code E5, 05. However, even the best tankless water heaters sooner or later may stop working or be affected by other kinds of problems. If you do think that there are obstructions and foreign objects then they may be in the combustion chamber, the exhaust piping, the vent terminal, or preventing sufficient airflow from coming into the unit itself. To fix the Rheem error code IL, drain and flush the heat exchanger as recommended in your owners manual, which Rheem has provided. Your tankless water heater will display this wrong message if the venting system fails or doesnt work properly. Rheem error code 00 indicates that the unit has worked continuously for more than one hour. Next, disconnect the wiring from the remote control and plug your water heater into an outlet. Rheem error code 14 means the overheat film wrap has been activated, usually caused by a hot spot. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. So, I highly recommend you to call a professional to handle this. You can find a full list of error codes here. E5 on a Rheem Tankless Water Heater means there is a high flow rate. Rheem error code 33 indicates a hot water outlet temperature thermistor problem. Make sure to check all four sensors. If the igniter and the fan function but the main burner doesnt, we bet one of the gas solenoid valves doesnt work properly. Mainly E5 on a Rheem tankless water heater means a high water flow rate. One common problem with Rheem tankless water heaters is not getting any hot water while showering. If the fault is not so serious then you may be able to fix it yourself and get your water heated soon enough. Its about a year old and - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. However, these quick fixes will notalways fix your problem. See if the air inlet screen is dirty and clean as necessary. Stop the water flow, switch the remote control off, and unplug it. Check the thermostat on the remote control; it might be set too low. If your Rheem tankless water heater shows an error code 00, try restarting it. If this sensor senses that the heat exchanger of your water heater gets overheated, it will pop up this error message. Replace the PCB or the gas inlet solenoid valve if needed. In my experience, in most cases, it is a false flame code because when I look through the site glass, the flame is still visible. If you meet the gas supply and installation requirements, check the following: If there are no issues with the wiring and readings are normal: If you find that your tankless heater often requires a reset, it might be that its overloaded. It is a significant upgrade to the version that uses tanks and delays water supply till it's hot. Increase the flow. callback: cb Ensure that the altitude is set correctly for your particular needs and the vents meet the necessary size requirements for safe operation and use. Then, inspect the gas solenoid valves and make sure they work properly. The water heater will trigger the error code E5 if there is too much water flow. Issues affecting the thermistor, such as wiring. You should also measure the Molex connections resistance. There may also be foreign material or obstructions in the burner chamber so check that there are no blockages for the flame at the flame rod (or rods). What Are The Signs To Look Out For In A Failing Water Heater? Rheem Tankless Water Heaters Error Codes Breakdown Error Code: No Code It occurs when the water flow rate is extremely low. The error code c7 stands for a defective communication between the remote control and the tankless unit. Otherwise, you should replace the remote control with a new one. Ensure the programming chip is suitable for your Rheem model, and the altitude at which the unit is used. Rheem Tankless Water Heater Error Code 12 (This Should FIX it) The Rheem tankless water heater allows you to access instant hot water. After cleaning the inlet filter, run the hot water only in the tap to check. The cookie is used to store the user consent for the cookies in the category "Analytics". The Best Portable Tankless Water Heaters (On-The-Go Hot Water), The Best Condensing Water Heaters (Go Environment-Friendly), 5 Best Hot Water Recirculation Pumps of 2023, Best Tankless Water Heater Flush Kits of 2023. Want to know what the error code displayed on your Rheem tankless means? To fix the Rheem error code 71, ensure the gas inlet solenoid valve is installed correctly and its wiring harness is tight and not damaged. On some Rheem units, error code 29 can indicate a clogged neutralizer. Replace the PCB or the PGRF valve if necessary. In this case, you must replace the gas control assembly. Rheem error code 13 indicates a problem with the flame rod, typically accompanied by poor or improper combustion and found on indoor units. Finally, the heat exchanger should be checked to make sure that the fins, fan, and air intake all appear to be clean. ); Rheem water heater flashing red light 2 times. After removing the front panel cover, press the air intake switch and ensure it operates correctly. Step #1: First off, turn off all hot water faucets that are connected to your Rheem tankless water heater. Ensure there are no loose connections. Follow the same troubleshooting procedures outlined in error code 61. As soon as you spot an error code on your Rheem tankless water heater you may begin to panic as to what it means. A temperature of 32F means the thermistor is not connected correctly, and 199F indicates a direct short. Typical Gallons Per Minute. Disconnect the remote control, switch the unit on, and open a hot water tap to start it. Company's make changes through the years, and Rheem has been in business a long time with a wide range of tankless water heaters . If the readings are looking good, the PCB may be at fault. If you observe no remaining flame, dont hesitate to check the relay connection of flame rod connector. On top of this, you must ensure the drain will not allow backflow. Reason: Current fault with the Blower Motor. 1318 - Rheem and Ruud Heat Pump dB Level 1318 Technical Bulletin Water volume control fault is what error code 65 indicates. Replace the water control assembly or the PCB if necessary. Cause: The water heater and its burner doesn't get enough gas. Performing regular maintenance can also save you from having to solve any problems from occurring in the first place such as cleaning the filters, the air fan, and the heat exchanger fins. In some cases, the error comes up when the water heater has a water flow rate that's too high. It will be best to check the manual and use the fuel type recommended by the manufacturer. A faulty water flow sensor or PCB can also be the reason for your unit not working. 7 Awesome Tips For Sewer And Drainage Line Cleaning, how to match wires size with circuit breaker, Hybrid Water Heaters: Everything You Need to Know. If you have a Rheem tankless water heater, you may have noticed a code 11 on the display. Check the vent terminal and exhaust venting and ensure nothing blocks the airflow near or around the unit. 3 Common Causes (and How To, Troubleshooting Electrolux Dishwasher Error Codes, 5 Common Problems with Camplux Water Heaters. Each refers to a technical component of the tankless water heater and a specific description of the issue. After cycling the unit if you notice any remaining flame through the view window, I bet the gas control assembly is the culprit. Turn off you recirculation pump if your unit is connected to one. Both error codes 80 and 81 suggest a problem with the gas cut-off valve. Error code 76 on Rheem Tankless Water Heater is an indication of faulty communication with the remote control. Follow the descaling procedure to remove the scale build-up in the heat exchanger (there should be an error code). It helps us diagnose and determine the exact problem with the water heater. While troubleshooting your Rheem, do not operate it or open the hot water tap, especially while testing it using the Min and Max buttons. Save my name, email, and website in this browser for the next time I comment. If the error code disappears, then the problem is within the venting. Improper fuel type, rusty or defective heat exchanger, and faulty Molex connector are some caveats responsible for triggering this error code. You may need to replace the thermistor or the PCB. This code indicates that the unit is in standby mode and is not providing hot water. Call the service if none of the steps taken above works. E5 on a Rheem Tankless Water Heater means there is a high flow rate. Check the heat exchanger for scale buildup. In other words, youll need a very in-depth knowledge of these devices to understand each error code and an even more in-depth knowledge to solve it. Afterward, measure the voltage of the wiring between the water control and the connector B. How to troubleshoot Rinnai water heaters successfully using Rinnai error codes guide. (function() { Before finding out the source of the problem, we recommend you pull out the remote control wiring from the wiring terminal on the PCB. From this chapter, you can learn about the most common error codes the tankless water heater shows. To resolve this false flame issue, start by resetting the unit. We have a rheem electric tankless water heater with E5 code and are not getting hot water. By displaying a code on your tankless heater, you, or a professional, can read the code to understand what went wrong and how to fix it. A list of AO Smith tankless error codes for easy and inexpensive troubleshooting. You can find data about the water flow in the maintenance information. Where You Can Find Current Information For Your Rheem Tankless Water Heater. See whether its correctly installed and whether its functioning properly. There is a problem with the gas control valve. If there is no information, the unit should be working correctly. The neutralizer may need to be replaced and if it does then error codes 92 and 93 may be set off. This educational content is not intended to be a substitute for professional advice. A tankless water heater is a complicated device. E4 on your Rheem tankless water heater indicates an issue with the flow meter sensor. If this drainage system gets clogged, your tankless water heater will flash the error code 29 to prevent the burner from being flooded. Rheem error code 52 indicates an issue with the proportional gas flow regulator valve (PGFR). 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. 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. Symptoms, causes, and step-by-step troubleshooting guide to fix the most common problems on Rheem on-demand models. While troubleshooting, Rheem error code 65, confirm the unit receives enough water and all wiring connections are in good working condition and tight. What I recommend to you first is to clean the blower motor and its housing. These include: Fortunately, re-lighting your Rheem tankless water heater is easy. When that happens, all you need to do is know what each error code means so that you can take the appropriate steps to rectify the situation. The repair guide provides info on how to deal with the heating problems. How to use a diagnostic system to repair a faulty heater. Check for an operational igniter and for any damage to the igniter wiring harness. Ensure the heat exchanger flapper is not blocked and moves freely and that the whole vent system is clean and not blocked. Once you repair the damaged wiring, run the hot water tap to see whether the unit works or not. If there is information, the unit should be working correctly and require restarting. Rheem error code can display when the neutralizer or drain pipe gets clogged. The heater might also make a noise to alert you to any issues. During the winter, water can freeze in the drain piping, effectively blocking it and causing an error code 29 to appear on the unit. Did not see that error code here. This may be that the water control valve has the incorrect voltage or that there are loose/damaged connections on the water control valves wiring harness. For the air intake, remove then clean the air inlet filter and clean both the heat exchanger fins and the combustion air fan. Check if the maintenance information displays the hot water outlet temperatures. Find the most common problems and see how to fix issues. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. These steps will get fix the fault and restore your water heater back to working condition. Rheem error code 52 can be caused by loose or damaged wiring or terminals. Moisture can also build up in the water heater and the unit will also be connected to the plumbing system. Your email address will not be published. You should consult with a licensed professional and check local permit requirements before starting any project. Now, plug the water heater into an electric outlet and turn on a hot water source. Rheem Tankless Water Heater Error Code 10, 06. 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. Reason: Insufficient Heat Exchanger Temperature. Read Details: Rheem Tankless Water Heater Code 29. You will see a number that is flashing on the display, which will be accompanied by a beeping sound. If your Rheem displays an error code 76, confirm the remote control wiring is in good condition and tight. Igniter Gets Defective How To Change A Gas Valve On A Rheem Tankless Water Heater How To Clean The Igniter On Rheem Tankless Water Heater How To Reset Rheem Tankless Water Heater All Plumbers are screened, licensed, and insured. Rheem error code 32 means there is a problem with the heat exchanger thermistor. 2. Required fields are marked *. You may even want to take out the flame to check it and clean it with some steel wool. The content is not intended to be a substitute for professional advice or consultation. Besides, we will also depict those reasons that trigger the error messages and provide the solutions as well. Often, resetting the gas water heater allows the device to calibrate itself properly, and then the problem will fix itself. 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. These issues can include water leaks, that it runs out of hot water quickly, and suffers from an inconsistent water temperature. You may want to do a service call though you can check the wiring on the remote control yourself, specifically for any loose or damaged connections. If fault re-occurs book service call. You can compare this code to those on our list to find out what is wrong with your heater. Rheem error code 65 means there is a problem with the water volume control. You may need to flush the system using distilled white vinegar though do be careful as the water would naturally be hot. The neutralizer needs to be replaced soon. Even the largest tankless unit could struggle in a high-demand household (1). If your Rheem tankless water heater displays an error code P1, the minimum water flow rate is insufficient for the main burner ignition. The gas pressure to your water heater should range between 1.2- 3.5Kpa. Installing the kit on the water heater, will treat the condensate properly for safe disposal into the drain. If there is no information, check the inlet thermistors resistance readings and replace the thermistor if they are not good. 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. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. Hotwatertalk.com is a participant in the Amazon Services LLC Associates Program and other affiliate advertising programs, designed to provide a means for us to earn fees by linking to the affiliated sites. Check the flame rods condition, wiring, and voltage. If you dont get the appropriate voltage reading (8 to 16 VDC), you should replace the water control assembly. 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