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. This is a complete guide on Rheem Water Heater Blinking Light Codes. Check if the fan motor shaft moves freely and is not blocked or damaged. If your unit displays an error code 11, it is advisable to contact a licensed professional. The gas pressure to your water heater should range between 1.2- 3.5Kpa. Rheem error code 52 indicates an issue with the proportional gas flow regulator valve (PGFR). The neutralizer may need to be replaced and if it does then error codes 92 and 93 may be set off. This particular error code could also be triggered due to the wrong altitude setting if you reside in a high-altitude environment. On some Rheem units, error code 29 can indicate a clogged neutralizer. If you dont get this reading, you should replace the heat exchanger thermistor. Rheem error code 65 means there is a problem with the water volume control. Rheem error code IL indicates a possible scale buildup in the heat exchanger. When there is any problem with the unit, it will pop up an error code on the display. The burner assembly fires up only when you open the hot water tap. Reason: The Control Board is not programmed. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. So, keep reading. 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. To erase the error code 13, start with cleaning the dirty flame rods. It helps us diagnose and determine the exact problem with the water heater. forms: { The thermistor should also be free of any limescale build-up and may require a clean. 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. If you need to reset the code on your Rheem tankless water heater, follow these steps: 1. As an Amazon Associate, I earn from qualifying purchases. Reset the unit using the Min/Max switches on the PCB. As a second-generation plumber, it was easy for Anthony to get used to the technicalities of all from a tender age, Liner for Pools: Essential Guide and Tips, Above Ground Pool Steps: A Comprehensive Guide, 3 Chlorine Tablets: Essential Guide for Pool Maintenance, AO Smith Tankless Error Codes: Problems And Troubleshooting, Where You Can Find Current Information For Your Rheem Tankless Water Heater, The Error Codes On A Rheem Tankless Water Heater. If your Rheem displays an error code 51, ensure the gas valve wiring is in good working condition and installed correctly. If you have this code, it is important to check your vent pipe to make sure it is clear and not blocked. Rheem water heater error codes are short and simple. Watch the following tutorial to learn how to replace the water flow sensor. If checking that the fan blade is tightly fitted on the motor shaft and spinning freely does not work then you may want to replace the 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. Solution: If your tankless water heater is using natural gas, make sure that there is no interruption in gas supply from the distributor. In this article, we will look at the main Rheem error codes, what they mean, and how you can address them. On the other hand, if you want to save money, check out this video to learn how to clean the inlet filter. Home | Sitemap | Blog| Privacy | Disclaimer | Contact| About. Insert a flat-head screwdriver through the thermostat dial. Before developing Water Heater Hub, Anthony Barnes was a full-time plumber, and he has undertaken a wide variety of projects over the decades. window.mc4wp = window.mc4wp || { This may also be the ideal time to perform a bleed-over which requires the cold water supply valve to the water heater to be turned off. The specific codes might also differ slightly depending on your specific model of Rheem. Rheem error code 03 means there is a problem with the manifold control. The cookie is used to store the user consent for the cookies in the category "Analytics". During winter & freezing days, we recommend you insulate the drainpipe by using a heat tape. After cycling the unit if you notice any remaining flame through the view window, I bet the gas control assembly is the culprit. Rheem error code P1 means the water flow rates have fallen below 0.66 GPM for more than 5 seconds. There could also be a problem with the outlet thermistor which is the outgoing water temperature sensor. Rheem tankless water heaters provide water on demand. Receiving error code 61 -Faulty Blower Motor. 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. Several reasons are responsible for the heater to throw this error message. Error E5 codes may be the result of a malfunctioning combustion alarm. There is an issue with the inlet thermistor. Rheem Tankless Water Heater displays a lot of error codes due to specific reasons. It will usually be red or black, and may be labeled "reset.". If that does not work then you could confirm that the tankless unit is correctly grounded. See our list of the best electric tankless water heaters. I guess the PA error code is a air conditioner related fault code. And thank you for mentioning your issues. 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. There may be a fundamental issue with your control board that it is not programmed properly or that the wrong gas type has been entered. Here is a list of common error codes for Rheem tankless residential water heaters. There are a few reasons why the reset button might trip. A temperature of 32F indicates a thermistor that does not make a good connection, and 199F indicates a direct short. However, if it isnt, check the resistance readings of the heat exchanger. Finally, ensure the Molex connector is in good condition. Run the unit and check if the error code persists. Rheem water heater flashing red light 4 times. Call the service if none of the steps taken above works. A tankless water heater is a complicated device. A communication error with the remote control can result in error code 76. If this sensor senses that the heat exchanger of your water heater gets overheated, it will pop up this error message. If yes, clean the heat exchanger. E5 on a Rheem Tankless Water Heater means there is a high flow rate. What does E5 mean on my Rheem tankless water heater? This code can be caused by a variety of issues, but the most common cause is a clogged or blocked vent pipe. Water flow is below the minimum required. Before you make a service call for error code 51, check for any loose/damaged terminals on the wiring harness for the gas control valve. You should consult with a licensed professional and check local permit requirements before starting any project. See if there is anything blocking the air vent on the device. Any help you could provide or resource you can point me to would be greatly appreciated. } To troubleshoot Rheem error code 24, switch off the unit and check if it works with the disconnected remote control. You can find a full list of error codes here. For a condensing unit, confirm that the drain line is not blocked, and the shipping cap is removed. Then, turn on the water heater again, which will reset the heater. If none of these measures works then call in a professional to replace the control board (also known as a PCB). Here are some general steps: When there is a problem with your Rheem tankless water heater, it will display an error code, either on the digital display or on a smartphone app. Check the vertical and horizontal vent lengths and ensure they meet the standards for safe operation. These issues can include water leaks, that it runs out of hot water quickly, and suffers from an inconsistent water temperature. A temperature of 32F means the thermistor is not connected correctly, and 199F indicates a direct short. 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. 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. Check the heat exchanger air inlet and perform regular maintenance to flush the unit with scale buildup. 13 Common Rheem Tankless Water Heater Error Codes, 01. 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. Heres how to do it: This should allow the device to fully reset itself, and you might find the error code has magically disappeared. To fix this issue, you need to slow down the flow rate. Did not see that error code here. Once you clean or change the blower motor, follow the steps in reverse to reinstall the blower motor. The water temperature on the remote control is set too high. You may need to replace the thermistor or the PCB. 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. Where You Can Find Current Information For Your Rheem Tankless Water Heater. You can compare this code to those on our list to find out what is wrong with your heater. Also, check that the vent terminal was installed properly on the device. See our article Why is My Tankless Water Heater Beeping? Replace the access cover and turn on the breaker. They are usually displayed on the screen of the heater unit itself. More specifically, it will focus on troubleshooting your Rheem tankless water heater and what to do when you encounter the dreaded error code. You may need to replace the heat exchanger thermistor or PCB. Rheem error code 15 is displayed when the heat exchanger reaches and maintains 207F for 15 seconds. So, lets get started right here. Why Do Water Heaters Have a Reset Button? Before you try anything else, reset your Rheem water heater. Your email address will not be published. Rheem error code 03 is found on units with MIC-180 or EZLink. We will assume that the licensed plumber/installer professionally installed your Rheem tankless water heater. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! Rheem Electric Tankless Water Heater Error Code E5, 05. Reason: Poor/Improper Combustion due to the flame rod. You could check the power and if the unit is actually plugged in which is a good idea after a tripped or turned off circuit breaker (see also our guide on how to match wires size with circuit breaker ). We recommend you check out this in-depth guideline on Rheem Tankless Water Heater Code 11. Rheem water heater blinking blue light 3 times. Also, inspect the flame rod electrodes and clean them. Rheem Tankless Water Heater Error Code 10, 06. So, if you dont think you are up to the task, consult a professional. Make sure to check all four sensors. A false flame being detected may also necessitate a service call, yet there are certain steps to take first. Rheem error code 05 means there is a problem with the combustion. However, before you do that, confirm that the blower motor is turning freely as it may still operate with a small restriction. Heres what you can do: Code 12 signifies that the water heater does not detect a flame. You can also refer to your models user manual. How to use diagnostic system and fix the problems using the error codes that appear on the remote controller. Symptoms, causes, and step-by-step troubleshooting guide to fix the most common problems on Rheem on-demand models. To troubleshoot this error code, confirm that the water bypass solenoid has the right voltage going through it. Clogged condensate neutralizer. Resetting a Rheem Tankless Water Heater: Ultimate Guide, Candy Tumble Dryer Keeps Stopping: Troubleshooting Tips, Loc Error Code on Hoover Dryer: Troubleshooting Guide, [Fixed] Rheem Tankless Water Heater Code 12, Hot Water Heater Calcium Removal [How to Guide], Samsung Washer SUD Code but no SUDs? If it does, the unit should be good and restarted. Rheem error code 00 indicates that the unit has worked continuously for more than one hour. Follow the same troubleshooting steps and procedures as in error code 51. Problems with the combustion can also be caused by the flame rod though this should only display on an indoor Rheem tankless water heater system. If needed, clean the inside of this motor. 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. If the temperature is insufficiently low on the heat exchanger then you should receive error code 29 on your mid-efficiency or condensing unit. 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. An error code 90 typically indicates that there are blockages in the heat exchanger or blower motor. Check the air inlet filer and clean as required. Check the gas pressure; it might be too low, or the gas valve is not fully open. If everything looks in good condition, you may replace the PCB. As a retired plumber, Peter now spends his time teaching others how they can fix leaks, replace faucets, and make home improvements on a budget. Hi Scott. Compare HSI to other ignition systems. In plain words, the water heater error code 13 stands for a defective combustion system. To troubleshoot Rheem error code 61, check the motors wiring condition and the Molex connections at the PCB. Check that the vents are connected properly with no obstructions, the correct materials should have been used for the installation. Follow An E4 error code on your 45 model tankless water heater, indicates that there is an issue involving the flow meter sensor (also referred to as cold water temperature sensor.) Here faulty means either the blower motor itself gets defective or its housing gets clogged with dirt or debris. Get DIY installation tips and troubleshoot common problems. If its empty, dont forget to fill it with gas.
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