The connection to the thermistor is incorrect. From the bottom of the unit, take out two screws that hold the computer bracket in place. If the error code persists, contact a licensed technician. Also, check that the vent terminal was installed properly on the device. Error code 14 on tankless water heater means the Overheat Film Wrap sensor has activated. Error code 05 could be triggered by an issue with the air intake or a blockage leading to the vent exhaust. If the flow meter sensor gets defective, the unit fails to send a signal to the computer that is responsible for starting the device. When the ODS gets activated, your tankless water heater will trigger the error code 13. Every electric water heater has a reset button, and with good reason. Rheem error code 05 means there is a problem with the combustion. If it doesnt erase the error message, fix the issues that cause the heater to pop up the error code. 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 . Understanding Noritz error codes and troubleshooting Noritz water heaters. Check if the maintenance information displays the heat exchangers temperature. Double-check that the exhaust venting and air intake are both installed properly and look to be in good working order. 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. Follow the same troubleshooting steps and procedures as in error code 51. Yes, your water heater will occasionally produce cold water in addition to the hot water it normally produces. Improper fuel type, rusty or defective heat exchanger, and faulty Molex connector are some caveats responsible for triggering this error code. If you cant find a screen displaying the error code, consult a professional. Next, you need to remove some wires that come in the way like the blower motor wire, flame rod wire connectors, over wrap film plug, and others. Ensure minimum water flow and clean cold water inlet pipe and aerator screens. Rheem error code 12 indicates a flame failure. Clean the inlet filter if necessary. 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. 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 temperature of 32F indicates a thermistor that does not make a good connection, and 199F indicates a direct short. This is a complete guide on Rheem Water Heater Blinking Light Codes. Besides, your water heater will throw the error code P1 if the water flow sensor goes bad. If the waters temperature is too high, this should be indicated in the maintenance information. It will be better if you install the heat tape close to the exit to the main drain to get the best output. Receiving error code 61 -Faulty Blower Motor. Error Code 11indicates an ignition failure. Unfortunately, many things can cause an ignition failure. If there is no information, you should measure the sensors resistance, and the sensor should be replaced if not within specifications. Follow the descaling procedure to remove the scale build-up in the heat exchanger (there should be an error code). If there are air flow restrictions surrounding the unit or obstructions at the vent terminal then this could also result in an error code 34. Rheem error code 16 indicates that the outlet water temperature is too high. } However, if there is no information, measure the resistance to the heat exchanger thermistor. Below, we will show you how to fix those issues to clear away the error message. If there is no information, check the inlet thermistors resistance readings and replace the thermistor if they are not good. Damaged Igniter Wire Harness 04. After cycling the unit if you notice any remaining flame through the view window, I bet the gas control assembly is the culprit. You could ohm out all the solenoid valves, inspect the flame rods for the correct voltage, or even replace the gas control valve altogether. If they get blocked by dirt, debris, and carbon buildups, this may cause a problem with the combustion. Otherwise, you should replace the remote control with a new one. Rheem error code 03 is found on units with MIC-180 or EZLink. More specifically, it will focus on troubleshooting your Rheem tankless water heater and what to do when you encounter the dreaded error code. Get FREE quotes from licensed Plumbers in your area today. To troubleshoot this error code, confirm that the water bypass solenoid has the right voltage going through it. If your Rheem displays an error code 12, ensure all gas valves are open and adequate gas pressure. Also, we broke down the troubleshooting steps to clear the message. Enjoy the comfort and convenience of continuous hot water on demand with a Rheem tankless water heater. Restart the unit and confirm the water control receives enough voltage. The resistance of connector R between #Black3 and #Yellow5 wires will be 4K to 10K ohms. 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. If the inlet screen at the cold water connection gets clogged with dirt & debris, the water will not flow through it. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! 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. Stop the water flow, switch the remote control off, and unplug it. We earn a commission if you purchase at no additional cost to you. 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. Our comprehensive Rheem Water Heater Troubleshooting guide will explain common is. 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. On the other hand, you should get a neutralizer kit and install it on your water heater if the neutralizer drainage fails. You may need to replace the heat exchanger thermistor or PCB. Rheem error code 29 indicates that the outlet temperature is too low. Just release blockage from those components to get the ODS thermocouple back in the working condition. Locate the thermostat dial. Solution: If you cannot find the problem in the venting system, and cannot remove what is blocking the regular operation, call the service. This means that the flow meter is not sending a signal to the computer which starts the machine. We recommend you check for a broken wire or poor electrical connection. Check the number 11 where I break down the error code 61. Then, inspect the heat exchanger fins for a clog and release the buildup. Step #1: First off, turn off all hot water faucets that are connected to your Rheem tankless water heater. Your tankless water heater will display this wrong message if the venting system fails or doesnt work properly. Unless you have an in-depth knowledge of water heaters, youre best to not risk making the situation worse. And this is how the blower motor looks like: Inspect the blower motor for broken fins or dirt or debris that gets stuck inside it. There should definitely be no obstructions for the exhaust termination and flue inlet, check that both have the right amount of clearance space too. Tilt down the computer board, which will reveal the blower motor. You will see a number that is flashing on the display, which will be accompanied by a beeping sound. Simple. Rheem error code 32 can be caused by scale buildup on the inlet water filter or other thermistors, damaged or bad wiring, and short circuits. Replace the PCB or the PGRF valve if necessary. 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. 13 Common Rheem Tankless Water Heater Error Codes, 01. 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. Now, remove the three side screws of the blower motor and take out the blower motor. Check the heat exchanger for scale buildup. Remove the access panel from the front of the unit. If your Rheem displays an error code 76, confirm the remote control wiring is in good condition and tight. Ensure the heat exchanger flapper is not blocked and moves freely and that the whole vent system is clean and not blocked. Consult the guide and see whether you have a grasp on the problem indicated by the code. 14. Check the vent terminal and exhaust venting. 11. A false flame can be attributed to the flame rod (or rods) touching the flame whenever the unit fires. Replace the PCB or the communications cable if necessary. The error code 61 popping up on the LED display represents a faulty blower motor. ABSTRACT: Rheem Residential Electric Water heaters are dual rated for 240 and 208 Volts AC single phase operation. The gas control assembly, the main burner, the flame rod electrodes, or the PCB may need to be replaced. Remove any blockage you see. Replace the PCB or fan if needed. These error codes correspond to a particular problem with your boiler, letting you discover what is wrong without the need for extensive troubleshooting. 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. That being said, customers have reported a much higher frequency of certain codes, which well cover here. Rheem error code 15 means the heat exchanger is overheating. I am glad to help. In this guide, we will look at where you can find the most current information for your Rheem tankless water heater and look at the error codes (see also AO Smith Tankless Error Codes: Problems And Troubleshooting) in detail. Try resetting the device, and if that doesnt fix the issue, its best to have a professional address the situation. Error code 65 may necessitate calling out a specialist yet you can check for a fault yourself. Of course, the internet is likely your go-to resource for any current information relating to your Rheem tankless water heater. 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. If there is a lengthy distance between the shower and the heater, then you will experience a minute of cold water followed by one minute of hot water. E5 on a Rheem Tankless Water Heater means there is a high flow rate. It indicates a neutralizer drainage failure. Sometimes this issue can be fixed by simply restarting the unit. Begin with cleaning the air inlet filter. Before doing so, remember to remove the Molex from the CB. You should also check that the fan motor looks to be working properly. Rheem Tankless Water Heaters Error Codes Breakdown Error Code: No Code It occurs when the water flow rate is extremely low. Have a different tankless water heater brand that needs troubleshooting? Also, dont forget to check the breather box for debris and use a vacuum cleaner or a lightly damp rag to clean the box. There are a few reasons why the reset button might trip. 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. Thankfully, Rheems water heaters provide an error code when something goes wrong. Rheem error code 05 can be caused by blocked air ventilation and exhaust flue systems. Rheem Tankless Water Heater Error Code 11, 07. Start with inspecting the remote control. 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, How to Install Water Heater Heat Traps | Water Heater Parts Guide, Hot Surface Ignitors: Troubleshooting, Testing, Replacing, How to Install a Hybrid Water Heater - DIY Tips. To fix the Rheem error code IL, drain and flush the heat exchanger as recommended in your owners manual, which Rheem has provided. If not, the problem could be caused by the blower motor and the PCB. However, the error code helps you troubleshoot the problem when scale buildup or malfunctions occur. If the maintenance information does not indicate the water being too hot, check the hot outlet thermistors resistance readings. You can use 100-grit sandpaper to remove the carbon buildup from the flame rods. If you are confident that youre not overworking your unit, consult a professional. But this task requires a lot of elbow grease. If you do not feel comfortable performing this yourself then you can contact a professional to do it for you. Has your Rheem tankless water heater suddenly stopped working? Check that the vents are connected properly with no obstructions, the correct materials should have been used for the installation. In that article, we described everything that causes your water heater to trigger the error message 12. Why is my Rheem tankless water heater beeping? Measure its resistance and voltage and replace it if necessary. Rheem tankless water heaters provide water on demand. If you dont get this reading, you must replace the PCB. Once your have your parts together, here are the steps to descale the water heater. Secondly, inspect the exhaust vent or air intake pipe for a clog. Before they arrive, you can check that the gas valves are all open with gas actually reaching the unit properly. However, if it doesnt, you should measure the thermistors resistance, and the thermistor or the PCB may need to be replaced. I have just updated this article as per your request. Error code 35 should require you to inspect each of the thermistor connections to the control board as they should all be securely connected. You should also measure the Molex connections resistance. On some Rheem units, error code 29 can indicate a clogged neutralizer. Disconnect the vent structure from the unit. 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. Rheem Tankless Water Heater Error Code 12, 10. All rights reservedDisclaimer:The content published on hotwatertalk.com is not professional advice. Insert a flat-head screwdriver through the thermostat dial. Resetting your tankless water heater will help you clear the error code from the control panel. Rheem Tankless Water Heater Error Code 10, 06. Should you have a circulation pump installed, you can also turn that off or even remove it. See our article Why is My Tankless Water Heater Beeping? Your email address will not be published. The gallons per minute (GPM) you and your family need at the same time will help determine the GPM your tankless water heater will need to deliver (e.g. Learn how they work and if they're worth the effort and cost. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. Cause: The gas shutoff valve is not open completely. This code will be shown on the heaters digital display or sent to a mobile app on your phone. Ensure the programming chip is suitable for your Rheem model, and the altitude at which the unit is used. After you see a code on a tankless water heater, a common first step is to reset the device. 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. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. From what I have seen online, I believe these codes are read more Don A. HVAC/R, EPA Universal 86 Rheem tankless water heater indoor propane model RTG-95DVLP Rheem tankless water heater indoor propane model RTG-95DVLP from 2013. While troubleshooting your Rheem, do not operate it or open the hot water tap, especially while testing it using the Min and Max buttons. See how to troubleshoot the flame failure, not enough, no hot water . Remember, Rheem tankless models need routine maintenance to remain energy efficient. How to install water heater heat traps quickly and easily? Knowing that the ignition has failed is straightforward enough yet finding out why can prove difficult. The water heater will trigger the error code E5 if there is too much water flow. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. The gas solenoid valves should also be in decent condition though they may be open or have short-circuited. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Water flow is below the minimum required. If you get the voltage reading, take another measurement at connector B between the White#2 and White#8 wires. This code indicates that the unit is in standby mode and is not providing hot water. Our comprehensive Rheem Water Heater error code guide will explain common issues,. Call the service if none of the steps taken above works. If your water heater is old then you may want to pay more attention to the warning signs that it may be failing. This error is preventable by descaling the water heater on at least once a year. One common problem with Rheem tankless water heaters is not getting any hot water while showering. Rheem Tankless Water Heater displays a lot of error codes due to specific reasons. Error code 79 should indicate that there is a problem with the current heading to the blower motor and you may want to do a service call. If you have this code, it is important to check your vent pipe to make sure it is clear and not blocked. However, before you do that, confirm that the blower motor is turning freely as it may still operate with a small restriction. Reason: Air Intake Filter Switch Malfunction. 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. To check the remote control, unplug your water heater from electricity and pull out its cover. Switch off the unit from the control panel. Most tankless water heaters are operated by natural or LP gas. Cause: The water heater and its burner doesn't get enough gas. The heater might also make a noise to alert you to any issues. You can also refer to your models user manual. 10 Common Reasons. Rheem tankless water heaters provide water on demand. It may be the case that both the fan motor and the control board need to be replaced. Rotate the thermostat to achieve your desired water outlet temperature. If the fault is not so serious then you may be able to fix it yourself and get your water heated soon enough. Rheem tankless water heaters are among the most reliable you can buy, but like any technology, they will eventually encounter issues. Check the air inlet filer and clean as required. Replace the access cover and turn on the breaker. The unit should work correctly if the water temperature is displayed in the maintenance information. Replace the water control assembly or the PCB if necessary. Rheem error code 52 can be caused by loose or damaged wiring or terminals. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); How to Reset Rheem Tankless Water Heaters, How Do You Troubleshoot a Rheem Electric Water Heater Rheem Error Codes, 5 Common Paloma Tankless Water Heater Error Codes, Common Electrolux Dryer Codes (E64, E65, E66, EF1, E91), F5E1 Maytag Washer Error Code? The fan motor should also have the right voltage and may be water damaged due to condensation. Open the hot water faucets in your home and if there is a steady flow of water from those faucets then you may have a bleed-over problem which would require a service call. The reset button is there for safety reasons. 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. As an Amazon Associate, I earn from qualifying purchases. Check the flame rod itself to see whether there are defects. Reason: The Control Board is not programmed. 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. Once you repair the damaged wiring, run the hot water tap to see whether the unit works or not. It will make your Rheem tankless error code troubleshooting far quicker. This is a complete guide on Rheem Tankless Water Heater Error Codes. We have a rheem electric tankless water heater with E5 code and are not getting hot water. } 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. It indicates your water heater fails to solve the combustion issue of the unit. If the unit doesnt start after disconnecting the remote, its PCB may need to be replaced. If your Rheem displays an error code 29, ensure the heat exchanger is clean of any buildups. Cookie Duration Description; cookielawinfo-checkbox-analytics: 11 months: This cookie is set by GDPR Cookie Consent plugin. These steps will get fix the fault and restore your water heater back to working condition. However, you can also find a wealth of information from the owners manual which will be specific to your model of a tankless water heater. Rheem Tankless Water Heater Code 11: The Reasons & Solutions 01. 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. What Is The Most Common Problem Associated With A Water Heater? forms: { What Size Heat Pump Do I Need for 2000sq ft Home. First off, turn the unit off at the remote controller or at the circuit breaker. To fix this issue, you need to slow down the flow rate. Otherwise, you should replace the water flow sensor. During the winter, water can freeze in the drain piping, effectively blocking it and causing an error code 29 to appear on the unit. Secondly, take your eyes on the heat exchanger to see whether it gets dirty or not. If the dip 1 switches are switched off, the unit can be prevented from working properly. Rheem error code 79 means there is a problem with the current of the fan motor. We created this website in order to help our visitors to find proper information about HVAC troubleshooting, repair and most frequent questions about it. They are usually displayed on the screen of the heater unit itself. Tankless water heaters generally last considerably longer than tank-type heaters, as they don't hold corrosive water for prolonged periods. We also broke down what you should do if the capacitor gets faulty. Also, make sure the gas flow valves are open and they dont get clogged with dirt or residue buildups. 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. Rheem error code 52 indicates an issue with the proportional gas flow regulator valve (PGFR). 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. As always, your best resource is your owners manual since it'll have the specific information you need for your model. 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. 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 none of these measures works then call in a professional to replace the control board (also known as a PCB). Checking the main burner and cleaning it will also worth it. This code is known as the continuous combustion fault. Lastly, check the fan motor for proper operation. Check if the maintenance information displays the ambient air temperature. Turn off the power to the unit at the breaker box. Rheem error code 13 indicates a problem with the flame rod, typically accompanied by poor or improper combustion and found on indoor units. Check the igniter itself to ensure it is working, including how it was wired to the device. Heres what you can do: Code 12 signifies that the water heater does not detect a flame. If its incorrect, you should adjust it. If your Rheem displays an error code 51, ensure the gas valve wiring is in good working condition and installed correctly. Below, well explain how to read codes on your gas heater and what you should do to rectify the situation. 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. Use the error code guideline below to identify the problem, or. You can find a full list of error codes here. Now, you may ask- how can I determine whether the suspect is the remote control or its wiring? 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. Attach the remote control to the tankless unit with a different wire. Troubleshooting John Wood tankless water heaters. 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. Check the vertical and horizontal vent lengths and ensure they meet the standards for safe operation. It helps us diagnose and determine the exact problem with the water heater. Take the time to remove any obstructions from the venting as well as where the vent terminates outside. This educational content is not intended to be a substitute for professional advice. 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. If not, continue reading. Inspecting their condition and cleaning them will typically fix this error code. Rheem error code 31 indicates a malfunction with the water inlet thermistor. 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. Appliance. What I recommend to you first is to clean the blower motor and its housing. Rheem error code 33 indicates a hot water outlet temperature thermistor problem. 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. If you encounter an code, it will be displayed on your Rheems digital thermostat display. window.mc4wp = window.mc4wp || { A flame failure is a little different from a failure to ignite and will likely require a specialist to take a look.

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