In this case, check the followings: 1. E5 on a Rheem Tankless Water Heater means there is a high flow rate. 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 resistance is not according to specifications, it should be replaced. 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? If there is no pulse output, you should replace the fan. Rheem error code 03 is found on units with MIC-180 or EZLink. Replace the access cover and turn on the breaker. If there is no information, check the inlet thermistors resistance readings and replace the thermistor if they are not good. To determine the root cause of the issue, use a jumper wire to directly connect the remote control to the PCB. Afterward, take out these two screws from the top of the computer board. Error code 12 means your tankless water heater fails to detect the flame. This error is preventable by descaling the water heater on at least once a year. Worked yesterday. One for the hot side and another for the cold side. The thermistor should also be free of any limescale build-up and may require a clean. If the code persists, call a licensed contractor. Often, resetting the gas water heater allows the device to calibrate itself properly, and then the problem will fix itself. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. Finally, the heat exchanger should be checked to make sure that the fins, fan, and air intake all appear to be clean. So, keep reading. You can find data about the water flow in the maintenance information. 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. Just release blockage from those components to get the ODS thermocouple back in the working condition. 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. Check for an operational igniter and for any damage to the igniter wiring harness. After removing the front panel cover, press the air intake switch and ensure it operates correctly. These include: Fortunately, re-lighting your Rheem tankless water heater is easy. See if there is anything blocking the air vent on the device. To troubleshoot the Rheem error code 10, check the air intake condition, exhaust flue inlet, heat exchanger, fan blade, and fins. Moisture can also build up in the water heater and the unit will also be connected to the plumbing system. However, if it isnt, check the resistance readings of the heat exchanger. Also, make sure you tidy up the air inlet filter, combustion air fan, and heat exchanger fan. Also, dont forget to check the breather box for debris and use a vacuum cleaner or a lightly damp rag to clean the box. If the water doesnt flow, we recommend you increase the flow rate. 14. It will alert you that your water heater requires service or that there are damaged or broken components you need to repair or replace. Your email address will not be published. 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. After cleaning the inlet filter, run the hot water only in the tap to check. Your tankless water heater will display this wrong message if the venting system fails or doesnt work properly. Rheem error code P1 means the water flow rates have fallen below 0.66 GPM for more than 5 seconds. Consult your owners manual to find out exactly where you need to look. 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. We recommend you check out this in-depth guideline on Rheem Tankless Water Heater Code 11. If the error code persists, contact a licensed technician. At 210F, it will automatically shut down and switch on automatically when the temperature goes down to 194F. Rheem error code 52 can be caused by loose or damaged wiring or terminals. If its incorrect, you should adjust it. ); Before developing Water Heater Hub, Anthony Barnes was a full-time plumber, and he has undertaken a wide variety of projects over the decades. If the unit starts, the problem is either with the remote control or wiring. I started HomeInspectionInsider.com to help people better understand the home inspection process and answer questions about homeownership and home maintenance. If you dont know how to detect the source of the problem, you can read this guide. Follow the descaling procedure to remove the scale build-up in the heat exchanger (there should be an error code). These are: Check the resistance readings of each sensor wiring and replace the sensors if not working correctly. Legal Disclosure:Lildutchuncle.com provides and shares information on plumbing, heating & air quality, home improvement, and other DIY projects. It means the desired water volume is too high that exceeds your desired preset temperature. Check the water flow servo and the cold water bypass system. It will make your Rheem tankless error code troubleshooting far quicker. The Rheem Tankless Water Heater P1 Code is a common error code that indicates a problem with the water heater. The minimum flow rate should also be met to make sure that the tankless water heater fires. Inspect the gas valve wiring harnesses for loose or damaged terminals2. You could also check the outlet thermistor, heat exchanger thermistor, and the gas valve are all in good working order. The connection to the thermistor is incorrect. Now, you may ask- how can I determine whether the suspect is the remote control or its wiring? There is an issue with the outlet thermistor. Rheem Electric Tankless Water Heater Error Code E5, 05. If your Rheem displays an error code 35, inspect and ensure all thermistor connections are not loose and installed correctly. If its empty, dont forget to fill it with gas. Our comprehensive Rheem Water Heater Troubleshooting guide will explain common is. We recommend you check for a broken wire or poor electrical connection. If your Rheem tankless water heater has been running continuously for over an hour you should look to reset the system. These issues can include water leaks, that it runs out of hot water quickly, and suffers from an inconsistent water temperature. Contractor or business name who did the installation and service. Replace the water control assembly or the PCB if necessary. A false flame being detected may also necessitate a service call, yet there are certain steps to take first. Have a different tankless water heater brand that needs troubleshooting? So, I highly recommend you to call a professional to handle this. If you are confident that youre not overworking your unit, consult a professional. Once you clean or change the blower motor, follow the steps in reverse to reinstall the blower motor. 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. Watch the following tutorial to learn how to replace the water flow sensor. Check the air inlet filter, clean it, and ensure the vent pipes are connected correctly. Rheem error codes 92 and 93 are typically found on condensing units. Just like error code 65, you should also inspect the tankless water heater for any loose or damaged connections on the wiring harness of the water bypass valve. Again, inspect the thermistor wiring for any damage and this is an ideal time to check then clean the ambient thermistor itself and perform a check for the correct number of ohms. The water shutoff valve and hot water tap need to be fully open. Run the unit and check if the error code persists. Disconnect the remote control, switch the unit on, and open a hot water tap to start it. Reason: Continuous combustion lasting an entire hour. Before you try anything else, reset your Rheem water heater. listeners: [], Why Do You Feel Sticky After Swimming? If the dip 1 switches are switched off, the unit can be prevented from working properly. Step #3: Then, disconnect the cord from the power connection. To resolve this false flame issue, start by resetting the unit. Remember, Rheem tankless models need routine maintenance to remain energy efficient. If the water heater has the mixing valve installed and does not operate properly, it must be replaced. To reset the water heater, turn off the hot tap water and the unit itself. This neutralizer is specially designed to keep the drain condensate away from the water heater. This is relatively simple and can just mean shutting off all your hot water faucets. 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. 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. After finding the high limit switch, you will need to activate it by pressing the red button that is located in the switchs center. You can also refer to your models user manual. 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. 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. To clear this fault, you will need a pump and two hoses. Rheem Tankless Water Heater P1 Code - Heaterview there's a good chance that a change or two have taken place. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. 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. The vent exhaust can be a little more complicated to solve though you should start by simply checking and removing any obstructions to the exhaust vent. Receiving error code 61 -Faulty Blower Motor. Increase the temperature on the remote if it is set too low. The next step is to take off the heaters front panel so you can get to the limit control switch. 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. Ensure the programming chip is suitable for your Rheem model, and the altitude at which the unit is used. Similarly to error code 51, you may want to check that the terminals on the gas solenoid valve wiring harness are not loose or damaged. Rheem Tankless Water Heaters Error Codes Breakdown Error Code: No Code It occurs when the water flow rate is extremely low. Obstructions could also result in error code 14 though if you cannot find one then consult a professional to troubleshoot the fault. 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 this drainage system gets clogged, your tankless water heater will flash the error code 29 to prevent the burner from being flooded. On the other hand, you should get a neutralizer kit and install it on your water heater if the neutralizer drainage fails. If your Rheem displays an error code 29, ensure the heat exchanger is clean of any buildups. Secondly, inspect the exhaust vent or air intake pipe for a clog. If your Rheem displays error code 99, ensure nothing blocks or obstructs the heat exchanger fins, exchanger flapper valves, vent termination, and clean air intake filter. Water flow is too low, or the shutoff valve is not fully open. 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. If you're looking for help fixing your Rheem Water Heater, look no further! Rheem error code 29 indicates that the outlet temperature is too low. 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. Home | Sitemap | Blog| Privacy | Disclaimer | Contact| About. Step #2: Now shut off the power supply to your tankless system. E5 on a Rheem Tankless Water Heater means there is a high flow rate. Ensure that the altitude is set correctly for your particular needs and the vents meet the necessary size requirements for safe operation and use. If you get the voltage reading, take another measurement at connector B between the White#2 and White#8 wires. Company's make changes through the years, and Rheem has been in business a long time with a wide range of tankless water heaters . 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. So, follow the troubleshooting steps we mentioned to clear the error message. Check the igniter itself to ensure it is working, including how it was wired to the device. Rheem Tankless Water Heater Error Codes P1, 02. I've been conducting professional home inspections since 2002. Water Heater Technical Bulletins - Rheem Manufacturing Company Simple. Ensure minimum water flow and clean cold water inlet pipe and aerator screens. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! You may need to replace the thermistor or the PCB. Solution Initially, fine-tune the water flow or temperature. Once you have an error code, take a look at our list to find out what the problem is. Each tankless water heater has a unique flow rate that it operates. The venting should also be adequately sealed and you may want it inspected by an expert. There are further elements that you can check including that the inlet water supply filter is clean. Rheem error code 34 indicates a problem with the ambient combustion air thermistor. We created this website in order to help our visitors to find proper information about HVAC troubleshooting, repair and most frequent questions about it. Reason: Current fault with the Blower Motor. Error code 14 on tankless water heater means the Overheat Film Wrap sensor has activated. Of course, the internet is likely your go-to resource for any current information relating to your Rheem tankless water heater. I got error code A104 on my electric rheem water heater. it - JustAnswer 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. Another problem that might occur when the water flow is reduced is the excessive temperature of the heat exchanger. Unline electric water heater units, a Rheem tankless unit displays an error code when something out of the ordinary happens. The resistance of connector R between #Black3 and #Yellow5 wires will be 4K to 10K ohms. This beeping makes sense, as it is possible that you might not look at your heaters digital display for a while and a major problem could otherwise go unnoticed. Ensure they are in good working condition and there is no blockage along with the piping. Otherwise, you need to change the PCB. Of course, dont hesitate to replace the blower motor if it gets broken. If you dont get this reading, you should replace the heat exchanger thermistor. A Rheem tankless water heater should last 15 to 20 years, and potentially longer with proper maintenance and a water supply that doesnt contain too many minerals. However, both codes would only be displayed on a condensing tankless water heater. 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. Before doing so, remember to remove the Molex from the CB. You should follow the same troubleshooting steps as in error code 51. A similar problem can be the outlet water temperature being beyond the remote thermostat setting. You can also check that the ohms are correct though your sensor may need to be replaced. The electronic control board will display the current temperature, but the unit is not working at all. Attach the remote control to the tankless unit with a different wire. Rheem error code 05 means there is a problem with the combustion. Rheem Tankless Water Heater Error Code 11, 07. Just turn off the water supply valve to slow down the flow. The water temperature on the remote control is set too high. This fault may be caused by blockages to the heat exchanger, limescale build-up, or even a combination of the two. Rheem Electric Tankless Water Heater Error Code E4, 04. The specific codes might also differ slightly depending on your specific model of Rheem. To fix the Rheem error code IL, drain and flush the heat exchanger as recommended in your owners manual, which Rheem has provided. 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. Rheem tankless water heaters are among the most reliable you can buy, but like any technology, they will eventually encounter issues. However, if it doesnt, you should measure the thermistors resistance, and the thermistor or the PCB may need to be replaced. Checking the main burner and cleaning it will also worth it. See if the fins on the heat exchanger are dirty and clean as necessary. Rheem Tankless Water Heater Error Code P1 - Heaterview Rheem error code 05 can be caused by blocked air ventilation and exhaust flue systems. And thank you for mentioning your issues. Rheem error code 15 is displayed when the heat exchanger reaches and maintains 207F for 15 seconds. Join our exclusive 2,500+ email list to get tailored advice, product roundups, and be the first to see our new content. Check the vent terminal and exhaust venting. 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. When this process is completed, your water will be murky, because of the limescale that has been removed. Afterward, measure the voltage of the wiring between the water control and the connector B. 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. This code will be shown on the heaters digital display or sent to a mobile app on your phone. Has your Rheem tankless water heater suddenly stopped working? This is a complete guide on Rheem Water Heater Blinking Light Codes. If the maintenance information does not indicate the water being too hot, check the hot outlet thermistors resistance readings. If that does not work then you could confirm that the tankless unit is correctly grounded. A temperature of 32F means the thermistor that does not make a good connection, and 199F means a direct short. Rheem error code 33 can occur if scale buildup is on the inlet valve water filter or other thermistors, damaged or bad wiring, and short circuits. Hire a plumber and tell him to clean the inlet filter at the cold water connection to the unit. Replace the PCB or the PGRF valve if necessary. You should also check that the fan motor looks to be working properly. If you want specific instructions, consult the owners manual. 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. To check the remote control, unplug your water heater from electricity and pull out its cover. 90% of the time, this troubleshooting step will help to eliminate the warning message from the control panel. Restart the unit and adjust the high-altitude fuel type chip and DIP switch. 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. The flame rod wire should be connected and it should be free of any carbon build-up. Rheem Tankless Error Codes | Problems | Troubleshooting Guide Copyright. Cause: The water heater and its burner doesn't get enough gas. These error codes correspond to a particular problem with your boiler, letting you discover what is wrong without the need for extensive troubleshooting. Rheem Tankless Water Heater Error Code 12 (This Should FIX it) Pipe dope may also cause a blockage inside the water flow control turbine. Some simple issues can result in the water flow being low and you should be able to solve them yourself. If there is any damaged wiring, your water heater will be unable to send a signal to the control board. When I can see a flame but the code displayed is Code 10, the problem is that the flame sensor is malfunctioning. In plain words, the water heater error code 13 stands for a defective combustion system. If there is no remaining flame, you should check the display maintenance for information regarding the flame rod. I have noticed that this problem occurs when the flame rods are dirty and needs to be cleaned. If your Rheem displays an error code 51, ensure the gas valve wiring is in good working condition and installed correctly. 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? ). In this article, we will look at the main Rheem error codes, what they mean, and how you can address them. The gas pressure to your water heater should range between 1.2- 3.5Kpa. Then, remove the front access panel. Rheem error code 38 indicates a problem with the oxygen depletion sensor. 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. Compare HSI to other ignition systems. See our article Why is My Tankless Water Heater Beeping? 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. The burner assembly fires up only when you open the hot water tap. When an error code is displayed on the screen and before you call the service support, do the following to reset the system, which might fix the issue: If nothing happens after resetting the unit and the error code is still visible, do the following: Cause: Limescale deposits in the heat exchanger water flow is reduced, and the temperature increases significantly. Error code 92 is displayed during operation, and when the unit is switched off, error code 93 is shown. (function() { See an examplehow to descale a Bosch tankless heater. While you could continue to reset it every time, the best solution is to either replace it with a larger water heater or install a second one. 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. Rheem error code 13 indicates a problem with the flame rod, typically accompanied by poor or improper combustion and found on indoor units. Ensure the condensate line is installed correctly and is within specifications. Tilt down the computer board, which will reveal the blower motor. Before you touch or open any electrical components, make sure the power is off. If the readings are not within specifications, you may be dealing with a faulty thermistor, which you should replace. 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. To troubleshoot Rheem error code 61, check the motors wiring condition and the Molex connections at the PCB. I have just updated this article as per your request. However, with so many different error codes, you might have no idea what each code means. An error code 90 typically indicates that there are blockages in the heat exchanger or blower motor. First off, make sure there is enough fuel in your gas tank. Replace the PCB or the gas inlet solenoid valve if needed. If you have a Rheem tankless water heater, you may have noticed a code 11 on the display. To learn more about error code 14, read this in-depth guide. On the other hand, if you want to save money, check out this video to learn how to clean the inlet filter. Replace the PCB or the communications cable if necessary. Replace it if necessary. Most tankless water heaters are operated by natural or LP gas. 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. If the fan doesnt move, then ensure it receives enough voltage. You may need to flush the system using distilled white vinegar though do be careful as the water would naturally be hot. Then, turn on the water heater again, which will reset the heater. Check the air intake and exhaust venting. Check the heat exchanger for scale buildup. Next, check the resistance of the heat exchanger thermistor. 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 is found on indoor units only and can be caused by a dirty air filter door or improperly installed and seated air filter door or front panel. Rheem tankless water heater starts malfunctioning over time. You can also try shutting off the water and then disconnect the remote control. Both error codes 80 and 81 suggest a problem with the gas cut-off valve. 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. If the remote works, the problem is with the cable, and if it doesnt, with the remote control itself. Measure its resistance and voltage and replace it if necessary. A Rheem tankless water heater should last 15 to 20 years, and potentially longer with proper maintenance and a water supply that doesn't contain too many minerals. Rheem error code 66 indicates a problem with the water bypass control. They are dirty or defective flame rods, faulty ODS thermocouples, and incorrect burner manifold pressure. Replacing the control board is the only solution to fix this water heater issue. It will be best to check the manual and use the fuel type recommended by the manufacturer. Defective Gas Solenoid Valves 03. 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. Make sure that the fan motor is operating properly. Rheem Tankless Water Heater Code E5 [Reasons + Solutions] However, some models require that you install an app on your phone where you will receive these updates. Rheem Tankless Water Heater displays a lot of error codes due to specific reasons. Ensure all vents are not blocked and in good working condition. You may need to replace the thermistor or the PCB. These can include checking for damage to the thermistor wiring and to check the thermistor for the right number of ohms. 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. That may be the cause but it could also be due to a clogged neutralizer on the condensing unit and you can clean the air inlet screen and the heat exchanger fins. Our whole-home gas and electric models are great for homes with busy families, homes with luxury bathrooms and vacation homes, while our point-of-use electric models are ideal for a single faucet or shower. 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. Get FREE quotes from licensed Plumbers in your area today.
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