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. Your tankless water heater will display this wrong message if the venting system fails or doesnt work properly. Here is a list of common error codes for Rheem tankless residential water heaters. Cookie Duration Description; cookielawinfo-checkbox-analytics: 11 months: This cookie is set by GDPR Cookie Consent plugin. E5 on a Rheem Tankless Water Heater means there is a high flow rate. A 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. 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. Nonetheless, freezing weather can also block up the neutralizer drainage system. Solution: If you cannot find the problem in the venting system, and cannot remove what is blocking the regular operation, call the service. Solution: Make sure that the hot water tap is open enough to provide at least the minimum required water flow. Peter has been a homeowner for 35+ years and has always done his own repair and improvement tasks. Check the igniter itself to ensure it is working, including how it was wired to the device. This error can be checked via two methods; checking that the front panel is installed properly and that the air filter door looks to be sealed correctly. There are further elements that you can check including that the inlet water supply filter is clean. Rheem error code 71 means a problem with the gas inlet solenoid valve. Reason: Poor/Improper Combustion due to the flame rod. To troubleshoot this error code, confirm that the water bypass solenoid has the right voltage going through it. Remember, Rheem tankless models need routine maintenance to remain energy efficient. So, keep reading. Check the heat exchangers resistance reading as part of the troubleshooting process. It can also mean a bad combustion alarm, a high water flow rate, a motor problem in the water heater or the voltage of the power supply is very low, and a pilot or main burner valve problem. Save my name, email, and website in this browser for the next time I comment. Also, check that the vent terminal was installed properly on the device. Should the heat exchanger keep a temperature of 207 F for a period of longer than 15 seconds then error code 15 may occur. The reset button can be found on most Rheem water heaters either immediately on top of the limit switch, which is positioned next to the thermostat, or it can be found nearby. Issues affecting the thermistor, such as wiring. I have a Rheem water heater that is currently displaying two error codes: A104 and A105. You may even want to take out the flame to check it and clean it with some steel wool. You can find more information in the user manual. Rheem error code 21 means the air intake filter is not working correctly. Heres what you can do: Code 12 signifies that the water heater does not detect a flame. See our article Why is My Tankless Water Heater Beeping? Thankfully, Rheems water heaters provide an error code when something goes wrong. Close hot tap, cycle power on and off at GPO and open hot tap again. Am I right? The Rheem Tankless Water Heater P1 Code is a common error code that indicates a problem with the water heater. Turn off the power to the unit at the breaker box. Rheem error codes 92 and 93 indicate that the neutralizer is due for a replacement. If your Rheem displays an error code 12, ensure all gas valves are open and adequate gas pressure. The reset button is there for safety reasons. Knowing what each error code means can save you from having to make a service call and can give you peace of mind about how serious, or not so serious, the problem is. 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. Rheem error codes 92 and 93 are typically found on condensing units. The gas solenoid valves should also be in decent condition though they may be open or have short-circuited. Any help you could provide or resource you can point me to would be greatly appreciated. The unit will throw the error code e51 if the gas inlet solenoid valve is at fault. A fault with the water inlet temperature sensor would result in error code 31 and you may want to check certain elements of your Rheem tankless water heater yourself. 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. Rheem error code 66 indicates a problem with the water bypass control. Rheem error code 52 indicates an issue with the proportional gas flow regulator valve (PGFR). Before you try anything else, reset your Rheem water heater. If you can solve a problem or a fault without having to make a service call then, not only will you learn more about how the water heater works, but you will likely save yourself some money. Replace the water control assembly or the PCB if necessary. Reason: Current fault with the Blower Motor. The content is not intended to be a substitute for professional advice or consultation. You should consult with a licensed professional and check local permit requirements before starting any project. Finally, ensure the Molex connector is in good condition. Ensure the MIC-180 and the EZLink are installed and set up correctly. To check the remote control, unplug your water heater from electricity and pull out its cover. The venting should also be adequately sealed and you may want it inspected by an expert. Rheem error code 29 indicates that the outlet temperature is too low. That being said, here are the most common codes and some potential fixes for each: Code 00 indicates that the water heater has been running without stopping for an hour. Troubleshooting for a switch malfunction could mean turning it off and on again by forcing a reset on the control board, all you need to do for that is press the MIN and MAX button. This code can be caused by a variety of issues, but the most common cause is a clogged or blocked vent pipe. Rheem Tankless Water Heater Error Code 61, Takagi Water Heater Error Codes [Ultimate Guide], Rheem Tankless Water Heater error code 13, Rheem Tankless Water Heater Troubleshooting Manual [Complete Guide], Basement Watchdog Battery Alarm Add Distilled Water, Basement Watchdog Battery Alarm [Corroded Terminals Or Bad Battery], Basement Watchdog Pump Was Activated Alarm, Loose remote control wiring or the remote control itself gets defective. It will trip as soon as the water is heated to an extreme temperature. In this guide, we will break down 11 day-to-day water heater status light codes, including: Rheem water heater flashing red light 1 times. See an examplehow to descale a Bosch tankless heater. 2. Rheem water heater error codes are short and simple. WaterHeater HUB 2021 - All Rights Reserved. If yes, clean the heat exchanger. If they are then you may want to contact a specialist to take a look. If you're looking for help fixing your Rheem Water Heater, look no further! Restart the unit and adjust the high-altitude fuel type chip and DIP switch. Besides, we will also depict those reasons that trigger the error messages and provide the solutions as well. Company's make changes through the years, and Rheem has been in business a long time with a wide range of tankless water heaters . A communication error with the remote control can result in error code 76. Insufficient fuel or restricted gas flow, faulty gas solenoid valves, defective igniter wire harness, and a problem with the igniter are some caveats that trigger the error code 11. If you want specific instructions, consult the owners manual. If needed, clean the inside of this motor. Otherwise, you should replace the water flow sensor. From cleaning the aerators as well as checking the pressure and flow of the water from your hot water faucet to checking then cleaning the water inlet filter on your tankless unit. Try connecting the remote control to the remote connection directly which is at the bottom of the water heater, though the cable may be the problem and could be replaced. We recommend you read our in-depth guide on Rheem Tankless Water Heater Code 12. Once you have an error code, take a look at our list to find out what the problem is. Your water heater will flash this error message on the control panel due to: Firstly, determine whether there is a problem with the remote control wiring or the remote control itself. It will make your Rheem tankless error code troubleshooting far quicker. Specifically, error code 92 would display when the water heater is continuing to operate and is a warning to replace the neutralizer soon. During the troubleshooting, you can remove the vent structure from the unit and start it. If the water heater has the mixing valve installed and does not operate properly, it must be replaced. The Rheem tankless water heater code means that incomplete combustion is taking place in your heater or it may be that the water flow is too high. Reason: Continuous combustion lasting an entire hour. Turn off you recirculation pump if your unit is connected to one. When the problem occurs, the error code is displayed on the LCD screen of the remote or user interface, so by understanding the meaning of the code, the troubleshooting gets easier. Both error codes 80 and 81 suggest a problem with the gas cut-off valve. Error Code 29 indicates that the temperature is too low on the heat exchanger. If you encounter this, heres what you can do: These are the most common error codes, as well as the most common fixes for said codes. You should replace the gas control assembly if there is a remaining flame. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. During the winter, water can freeze in the drain piping, effectively blocking it and causing an error code 29 to appear on the unit. If there is enough current running, you may need to replace the burner assembly; otherwise, replace the PCB. Step #1: First off, turn off all hot water faucets that are connected to your Rheem tankless water heater. You can also try shutting off the water and then disconnect the remote control. Rheem Tankless Water Heater Error Code 12, 10. If the fan doesnt move, then ensure it receives enough voltage. It helps us diagnose and determine the exact problem with the water heater. Thanks.Rheem Model RTG 84DVLP. Ensure the airflow is not restricted or blocked. } Remember that depending on your altitude, or for every 3,280 feet, a different programming chip is used, and indoor and outdoor models use different chips. Replace the PCB or fan if necessary. These include: Fortunately, re-lighting your Rheem tankless water heater is easy.
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