I've had my tankless water heater for about 5 years now, and has never had a problem. For every 5 gallons, there should be 2 gallons and 3 gallons of water, Put you pump into the bucket and run it for 30-45 minutes, Make sure that power is turned on to the unit and circuit breaker is powered on, Make sure that the safety device on your unit is not activated resulting in the water heater not operating, Sometimes errors are caused as a result of communication fault instead of any particular issue with a component on the unit. You could increase the flow rate or simply adjust the temperature though if all of these potential solutions fail then there may be a problem with the water flow sensor itself which needs to be replaced. What Are The Signs To Look Out For In A Failing Water Heater? What I recommend to you first is to clean the blower motor and its housing. Next, check the incoming water pressure to make sure it is within . You may not need to contact a qualified specialist to take a look as the error codes can be troubleshot by yourself. Reading through Rheemserror code guide, youll notice the description for each error code is quite specific. It helps us diagnose and determine the exact problem with the water heater. I have installed many tank & tankless water heaters as I am a plumber. You can use 100-grit sandpaper to remove the carbon buildup from the flame rods. Finally, clean or replace the inlet screen if it is dirty or clogged. If the flow meter sensor gets defective, the unit fails to send a signal to the computer that is responsible for starting the device. user-manual-Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm Manual. Code 05 indicates an Imperfect Combustion Alarm. If you encounter this, heres what you can do: Code 10 indicates that the flame has been lost on the unit. WaterHeater HUB 2021 - All Rights Reserved. Before testing a hot water source, you must ensure that all connections are properly secured. If your Rheem water heater is flashing white light, it shows that your pilot light is out and the water will still be cold. In rare cases, Rheem tankless water heater code 76 may indicate a problem with the filter capacitor. Also, we broke down the troubleshooting steps to clear the message. If it has flipped off, flip it on. callback: cb If yes, clean the heat exchanger. Copyright. It means the desired water volume is too high that exceeds your desired preset temperature. The Rheem tankless water heater code 76 may be caused by a defective remote control, faulty remote control wiring, or a faulty filter capacity. A yellow pilot light means that the pilot is not . Shows hot to verify blue flame by removing panel cover. Compare Now. 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. . 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. Remove the access panel from the front of the unit. If you have a tankless water heater, you may occasionally see an error code displayed on the unit. Replace the combination gas control (thermostat). Resetting a Rheem Tankless Water Heater: Ultimate Guide, [Fixed] Rheem Tankless Water Heater Code 12, Hot Water Heater Calcium Removal [How to Guide], Samsung Washer SUD Code but no SUDs? If you have a Rheem tankless water heater, you may be wondering what all the codes on the control panel mean. I see all of these bad reviews of the Rheem water heaters and notice that many seem to be purchased at a retail level either thru their plumber or directly from Home Depot or other home improvement outlet. The consent submitted will only be used for data processing originating from this website. Leave the unit for 2o minutes. Bath. Man Tips! 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. Learn how to inspect and replace a water heater dip tube and solve the problems related to not enough hot water or sediment buildup. Water volume control fault is what error code 65 indicates. Then, inspect the gas solenoid valves and make sure they work properly. Thanks.Rheem Model RTG 84DVLP. The alarm sounds every 60 seconds when the tap is open. Follow the descaling procedure to remove the scale build-up in the heat exchanger (there should be an error code). Then, turn on the water heater again, which will reset the heater. Check the thermostat on the remote control; it might be set too low. On top of this, you must ensure the drain will not allow backflow. 3 Common Causes (and How To, Troubleshooting Electrolux Dishwasher Error Codes, 5 Common Problems with Camplux Water Heaters. There are a few possible causes for this problem. 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. The gas supply to the unit may be shut off or interrupted. Use a paperclip or similar object to press and hold the reset button for 3 seconds, then release it. Increase the flow. There are many error codes on a Rheem tankless water heater (see also Rheem Water Heater LeakingWhat To Do?) and their reasons differ vastly. There are a few possible causes of this problem: However, there is also another meaning of the error code 29. Finally, check for blockages in the inlet filter and combustion fan. Any help you could provide or resource you can point me to would be greatly appreciated. Installing the kit on the water heater, will treat the condensate properly for safe disposal into the drain. LPG users check Propane bottle level. 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. Call for service when your unit is showing this code. 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. Explore More on homedepot.com. Below, well explain how to read codes on your gas heater and what you should do to rectify the situation. It is a significant upgrade to the version that uses tanks and delays water supply till it's hot. However, before you do that, confirm that the blower motor is turning freely as it may still operate with a small restriction. What does E5 mean on my Rheem tankless water heater? In the past 2 weeks, its beeped at me and the remote thermostat shows a code of 11 when i turn the hot water on. Confirming that the remote controls wiring is the issue before fixing it will save you resources and time. Check to see if the breaker has been reset. If the issue persists, it could be due to a clogged filter or sediment buildup in the unit. 4. This code indicates that the unit is not getting enough water flow. One potential reason is a defective remote control. We also broke down what you should do if the capacitor gets faulty. In the troubleshooting manual, Rheem says that error code 29 stands for too low heat exchanger outlet temperature. However, if you are mechanically inclined, keep scrolling. 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. SVC 810 Tankless Troubleshooting Manual Connector and Hot Water Outlet Thermistor a. Again, check for leaks and blockages and ensure all connections are tight. Another problem that might occur when the water flow is reduced is the excessive temperature of the heat exchanger. Aside from a defective remote control, faulty wiring may also lead to the Rheem tankless water heater code 76 error. When this process is completed, your water will be murky, because of the limescale that has been removed. c. Remove one ceramic heater plug. There could also be a problem with the outlet thermistor which is the outgoing water temperature sensor. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! If using propane gas, make sure that the propane tank has enough gas. 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. If done correctly, you should hear a click when you release the button. 11. If you dont get the appropriate voltage reading (8 to 16 VDC), you should replace the water control assembly. Reason: Current fault with the Blower Motor. Error code 65 may necessitate calling out a specialist yet you can check for a fault yourself. A lower or higher value indicates a faulty capacitor. Also, make sure that there are no plumbing or technical problems such as crossovers. You may even want to take out the flame to check it and clean it with some steel wool. Replacing the control board is the only solution to fix this water heater issue. It will alert you that your water heater requires service or that there are damaged or broken components you need to repair or replace. All rights reservedDisclaimer:The content published on hotwatertalk.com is not professional advice. Check the venting on the device for any blockage and clear as necessary. The flow meter sensor is also referred to as a water temperature sensor. The filter capacitor may become clogged and damaged over time, hindering its capacitance capability. } Also, turn the gas shut-off valve to stop the gas supply to the unit. Features and error codes may have changed over the years so finding an updated resource is vital to ensure that you know what to do when a fault looks to have occurred. Reason: A false flame has been detected. By understanding these simple codes, you can keep an eye on your Rheem tankless water heater and make sure its always operating properly. On the other hand, if you want to save money, check out this video to learn how to clean the inlet filter. Solution: If you cannot find the problem in the venting system, and cannot remove what is blocking the regular operation, call the service. On the other hand, if you can't turn on the unit, we bet the remote control gets defective. Call the service if none of the steps taken above works. A new remote control should facilitate communication and solve the Rheem code 76 error. 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 ). Then, leave your water heater for 30 seconds in state of disconnected from the power source. 10 Common Reasons. Secondly, inspect the exhaust vent or air intake pipe for a clog. A clogged condensate drain line and incorrect condensate line piping are the common causes to block the drainage system. However, Its essential to use an authentic Rheem replacement remote control for proper functioning. If you find any, clean them out so that air can flow freely. Save my name, email, and website in this browser for the next time I comment. You can fix this problem by replacing the wiring connecting the remote control and PCB board. The water heater will trigger the error code E5 if there is too much water flow. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. Read reviews and complaints about Rheem Water Heaters, detailing commercial services, tankless heaters and more. A defective or loose wire connection between the water control and the connector B on the PCB is the main culprit that causes your heater to pop up with this error message. Inspect the gas valve wiring harnesses for loose or damaged terminals2. What Size Heat Pump Do I Need for 2000sq ft Home. Contractor or business name who did the installation and service. It will usually be red or black, and may be labeled reset. So, I highly recommend you to call a professional to handle this. Double-check that the exhaust venting and air intake are both installed properly and look to be in good working order. Tankless water heaters generally last considerably longer than a tank-type heater, as they don't hold corrosive water for prolonged periods. If you get the voltage reading, take another measurement at connector B between the White#2 and White#8 wires. 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. If you need to reset the code on your Rheem tankless water heater, follow these steps: An example of data being processed may be a unique identifier stored in a cookie. All Plumbers are screened, licensed, and insured. Rheem tankless water heaters are great for providing hot water on demand. Part # 683034. Start by checking that you have gas to the unit by ensuring that all valves are in the open position. These codes can be confusing, but they usually indicate a simple problem that can be easily fixed. The circuit breaker for the unit may have tripped. Unplug the unit from the power outlet on the wall. Watch the following tutorial to learn how to replace the water flow sensor. A flame failure is a little different from a failure to ignite and will likely require a specialist to take a look. In this blog post, well decode some of the most common error codes and tell you what you can do to fix them. Here are some steps you can take to troubleshoot and fix the problem: Water flow is below the minimum required. Inspect the venting system for any blockages. The Rheem tankless water heater code 76 indicates a communication fault between the remote control and your tankless water heater. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. If the water heater has the mixing valve installed and does not operate properly, it must be replaced. The neutralizer needs to be replaced soon. Turn off the power to the unit at the breaker box. See how to troubleshoot the flame failure, not enough, no hot water . Turn off the power to the water heater for 10 seconds and then back on. What Is The Most Common Problem Associated With A Water Heater? If nothing works for you, I suspect the PCB is the culprit. Error Code E4: This code signals that there is a problem with ignition or flame detection. Do note that solving each code will require a comprehensive understanding of the technical details of a tankless water heater. After cycling the unit if you notice any remaining flame through the view window, I bet the gas control assembly is the culprit. listeners: [], If its dirty, replace it with a new one. Increase the temperature on the remote if it is set too low. 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 flame rod wire should be connected and it should be free of any carbon build-up. Have a different tankless water heater brand that needs troubleshooting? Err05 - Control Board is not accepting signal from switch. Remove the access panel from the front of the unit. There may also be loose or damaged connections attributed to the motor wiring harness that could be the true cause of the error code. As a second-generation plumber, it was easy for Anthony to get used to the technicalities of all from a tender age, Table Shower Ultimate Guide (Must Know Secrets), 3 Ways to REMOVE PVC Pipe From a FITTING (Video Review), 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. You can find a full list of error codes here. If you do not feel comfortable performing this yourself then you can contact a professional to do it for you. 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. The second trick is to check for any blockage in the exhaust venting. Cause: The water heater and its burner doesn't get enough gas. But this task requires a lot of elbow grease. Code 02: This means that the water heater is actively heating water. Check to see that nothing is blocking the flue inlet exhaust or fan. 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. 4. Nonetheless, freezing weather can also block up the neutralizer drainage system. Below, we will show you how to fix those issues to clear away the error message. Rheem offers several water heating solutions, and this article will focus on its line of tankless water heaters. Symptoms, causes, and step-by-step troubleshooting guide to fix the most common problems on Rheem on-demand models.
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