rheem tankless electric water heater error codes

When you shop through links on our site, we may earn an affiliate commission. This is another fault that you may want to check with a professional. Reason: Too High Outlet Water Temperature. There may also be foreign material or obstructions in the burner chamber so check that there are no blockages for the flame at the flame rod (or rods). Join our exclusive 2,500+ email list to get tailored advice, product roundups, and be the first to see our new content. 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. If you have a Rheem tankless water heater, you may have noticed a code 11 on the display. You should replace the gas control assembly if there is a remaining flame. You may even want to take out the flame to check it and clean it with some steel wool. In that article, we described everything that causes your water heater to trigger the error message 12. If it does, the unit should be good and restarted. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. Reset the unit using the Min/Max switches on the PCB. Ensure it touches the flame. If your Rheem displays an error code 12, ensure all gas valves are open and adequate gas pressure. However, even the best tankless water heaters sooner or later may stop working or be affected by other kinds of problems. Begin with slowing down the flow rate of your water heater. So, if you dont think you are up to the task, consult a professional. Rheem error code can display when the neutralizer or drain pipe gets clogged. Reason: Air Intake Filter Switch Malfunction. Remove any blockage you see. It means the desired water volume is too high that exceeds your desired preset temperature. There are over 30 codes possible on Rheem devices. Rheem error code 15 means the heat exchanger is overheating. On some Rheem units, error code 29 can indicate a clogged neutralizer. A temperature of 32F means the thermistor is not connected correctly, and 199F indicates a direct short. 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. If the error code disappears, then the problem is within the venting. Check if the maintenance information displays the heat exchangers temperature. During the winter, water can freeze in the drain piping, effectively blocking it and causing an error code 29 to appear on the unit. Switch off the unit from the control panel. 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. Get DIY installation tips and troubleshoot common problems. Here is a list of common error codes for Rheem tankless residential water heaters. Otherwise, you should replace the remote control with a new one. However, with so many different error codes, you might have no idea what each code means. Attach the remote control to the tankless unit with a different wire. Increase the temperature on the remote if it is set too low. 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. Consult your owners manual to find out exactly where you need to look. Also, dont forget to check the breather box for debris and use a vacuum cleaner or a lightly damp rag to clean the box. Finally, the heat exchanger should be checked to make sure that the fins, fan, and air intake all appear to be clean. To check the remote control, unplug your water heater from electricity and pull out its cover. Ensure its installed correctly and measure its resistance. If the temperature is not within specifications, replace the thermistor, and if it is, you may have to replace the PCB. The error code c7 stands for a defective communication between the remote control and the tankless unit. Water flow is too low, or the shutoff valve is not fully open. Ensure the connections to the circuit board are secure. However, if it isnt, check the resistance readings of the heat exchanger. Check the venting on the device for any blockage and clear as necessary. Check your units troubleshooting manual for more model-specific information. Restart the unit and confirm the water control receives enough voltage. Company's make changes through the years, and Rheem has been in business a long time with a wide range of tankless water heaters . Ensure the airflow is not restricted or blocked. There should also be gas to the unit with the valves fully turned on and the unit itself should have the correct gas volume and pressure which can be checked by a specialist. 10 Common Reasons. 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. To learn more about error code 14, read this in-depth guide. There may also be blockages in the heat exchanger which should be removed. 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. Checking the main burner and cleaning it will also worth it. there's a good chance that a change or two have taken place. Discover how to replace a faulty hot surface ignitor in your water heater with our comprehensive troubleshooting guide. Before finding out the source of the problem, we recommend you pull out the remote control wiring from the wiring terminal on the PCB. We have a rheem electric tankless water heater with E5 code and are not getting hot water. Reason: The Control Board is not programmed. You may have to replace the PCB if the readings are within specs. 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? ). Error code 61 should mean that you should check the fan motor, specifically that it turns freely as even a small restriction could be the problem. Besides, your water heater will throw the error code P1 if the water flow sensor goes bad. This is relatively simple and can just mean shutting off all your hot water faucets. As an Amazon Associate, I earn from qualifying purchases. What Size Heat Pump Do I Need for 2000sq ft Home. window.mc4wp = window.mc4wp || { Check the heat exchanger for scale buildup. Dont forget to release the blockage if needed. The flow meter sensor is also referred to as a water temperature sensor. This is largely because the Rheem tankless water heater is not specially designed for continuous running along with a circulation system. Most of the time, when troubleshooting a Rheem tankless water heater, you will have to reset it. If you do not feel comfortable performing this yourself then you can contact a professional to do it for you. The next step is to take off the heaters front panel so you can get to the limit control switch. A Clogged Neutralizer Is Causing Rheem Tankless Code 29. Insufficient Or Restricted Gas Flow 02. Again, there should be no obstructions to the airflow and the vent terminal should be clear. Did not see that error code here. So, lets get started right here. 2. Performing regular maintenance on your Rheem tankless water heater should prevent error code 1L from occurring. 3 Common Causes (and How To, Troubleshooting Electrolux Dishwasher Error Codes, 5 Common Problems with Camplux Water Heaters. And lastly, check out the burner manifold pressure. Error code 92 is displayed during operation, and when the unit is switched off, error code 93 is shown. })(); Anthony Barnes is the founder of Water Heater Hub and a second-generation plumber by profession. Hi there, i am Eugene - an experienced HVAC / appliance technician. Rheem error code 76 indicates a failure in communication with the remote control. These issues can include water leaks, that it runs out of hot water quickly, and suffers from an inconsistent water temperature. The cookie is used to store the user consent for the cookies in the category "Analytics". The reset button is there for safety reasons. Rheem error code 35 indicates a problem with the connections of one or several thermistors. 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. The connection to the thermistor is incorrect. You should follow the same troubleshooting steps as in error code 51. See our article Why is My Tankless Water Heater Beeping? For a condensing unit, confirm that the drain line is not blocked, and the shipping cap is removed. We hope this list helps you troubleshoot your Rheem tankless water heater and obtain a steady flow of hot water again. If the fault is not so serious then you may be able to fix it yourself and get your water heated soon enough. If this sensor senses that the heat exchanger of your water heater gets overheated, it will pop up this error message. You will see a number that is flashing on the display, which will be accompanied by a beeping sound. Find the most common problems and see how to fix issues. The voltage should be 8 to 16 VDC. It will alert you that your water heater requires service or that there are damaged or broken components you need to repair or replace. The gas control assembly, the main burner, the flame rod electrodes, or the PCB may need to be replaced. Now, you may ask- how can I determine whether the suspect is the remote control or its wiring? Water volume control fault is what error code 65 indicates. For two showers and a load of laundry, you'll need a water heater that's rated to deliver at least 5.5 GPM for your area (2.0+2.0+1.5=5.5)). Copyright. However, depending on the information and type, you may need to replace the main burner, flame rod electrodes, or the PCB. 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. Turn off the power to the unit at the breaker box. If the remote control works, we bet the wiring is at fault. On top of this, you must ensure the drain will not allow backflow. Next, check the resistance of the heat exchanger thermistor. Use the error code guideline below to identify the problem, or. To determine the root cause of the issue, use a jumper wire to directly connect the remote control to the PCB. This code is known as the continuous combustion fault. It is a significant upgrade to the version that uses tanks and delays water supply till it's hot. The valves, the main burner, the flame rod electrodes, or the PCB may need to be replaced. Replace the PCB or fan if necessary. Want to know what the error code displayed on your Rheem tankless means? Solution: If you cannot find the problem in the venting system, and cannot remove what is blocking the regular operation, call the service. How to Re-Light Your Rheem Tankless Water Heater. After finding the high limit switch, you will need to activate it by pressing the red button that is located in the switchs center. Rheem error code 24 indicates a problem with an operational switch. If your water heater is old then you may want to pay more attention to the warning signs that it may be failing. Damaged Igniter Wire Harness 04. Of course, dont hesitate to replace the blower motor if it gets broken. Step #3: Then, disconnect the cord from the power connection. Rheem error code 11 can be caused by low gas pressure, faulty or improperly wired gas solenoid valve, and igniter. 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. Hi Scott. Locate the reset button inside the control panel. Is your tankless unit beeping? When there is any problem with the unit, it will pop up an error code on the display. Before they arrive, you can check that the gas valves are all open with gas actually reaching the unit properly. This is a complete guide on Rheem Tankless Water Heater Error Codes. Locate the flame rods on the front right side, Remove the rod by unscrewing the brackets that secure them to the burner, Clean them and screw them back into place. Next, inspect the ODS thermocouple to see whether it functions properly or not. There is an issue with the PGFR (proportional gas flow regulating) valve. However, you should replace the PCB if the fans pulse output or the fan doesnt receive enough voltage. 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. To fix this error, replace the neutralizer. Ensure the unit is installed correctly, the hot and cold water lines are not mixed up, and there is enough water flow. The water temperature on the remote control is set too high. To clear this fault, you will need a pump and two hoses. You may need to replace the thermistor or the PCB. There are many error codes on a Rheem tankless water heater (see also Rheem Water Heater LeakingWhat To Do?) and their reasons differ vastly. Rheem error code 51 indicates a problem with the gas inlet solenoid valve. After cleaning the inlet filter, run the hot water only in the tap to check. When this process is completed, your water will be murky, because of the limescale that has been removed. On the other hand, you should get a neutralizer kit and install it on your water heater if the neutralizer drainage fails. Rheem error code 32 means there is a problem with the heat exchanger thermistor. Replace it if necessary. listeners: [], Solution Initially, fine-tune the water flow or temperature. Igniter Gets Defective How To Change A Gas Valve On A Rheem Tankless Water Heater How To Clean The Igniter On Rheem Tankless Water Heater How To Reset Rheem Tankless Water Heater If there are none, check the exhaust and inlet flue for any blockages. 1318 - Rheem and Ruud Heat Pump dB Level 1318 Technical Bulletin 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.) } You could ohm out all the solenoid valves, inspect the flame rods for the correct voltage, or even replace the gas control valve altogether. Defective Gas Solenoid Valves 03. You may need to flush the system using distilled white vinegar though do be careful as the water would naturally be hot. Tankless water heaters generally last considerably longer than tank-type heaters, as they dont hold corrosive water for prolonged periods. Reason: Continuous combustion lasting an entire hour. Replace the PCB or the communications cable if necessary. Rheem error code 34 indicates a problem with the ambient combustion air thermistor. (function() { Error Code 13 indicates Flame rod: poor or improper combustion. Heres what you should do: Related:Rheem Error 13 Ultimate Troubleshooting Guide. Replace the access cover and turn on the breaker. See an examplehow to descale a Bosch tankless heater. Every electric water heater has a reset button, and with good reason. 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. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. These steps will get fix the fault and restore your water heater back to working condition. 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. Call the service if none of the steps taken above works. However, these quick fixes will notalways fix your problem. Check if the fan motor shaft moves freely and is not blocked or damaged. Step #2: Now shut off the power supply to your tankless system. If there is no remaining flame, you should check the display maintenance for information regarding the flame rod. Rheem Electric Tankless Water Heater Error Code E5, 05. 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. good stuff mate i have a rheem gas 871624pfj tankless it comes with code e 51 ,i turn unit off it clears error code and will work and stay working untill you stop using hot water then back to e51,cleaned filters ,still same any help pls. event : evt, What Is The Most Common Problem Associated With A Water Heater? Tankless Electric Water Heaters. Error code 93 should show when the unit has shown down and is a further warning to replace the neutralizer. Before developing Water Heater Hub, Anthony Barnes was a full-time plumber, and he has undertaken a wide variety of projects over the decades. Often, resetting the gas water heater allows the device to calibrate itself properly, and then the problem will fix itself. A defective flow meter sensor, broken wire, and poor connection are the culprits that trigger the error code E4. Ensure all vents are not blocked and in good working condition. Rheem tankless water heaters provide water on demand. On demand, tankless units dont have a constant pilot light. If the error code persists, contact a licensed technician. Do note that solving each code will require a comprehensive understanding of the technical details of a tankless 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. Then, inspect the gas solenoid valves and make sure they work properly. Rheem error code 13 indicates a problem with the flame rod, typically accompanied by poor or improper combustion and found on indoor units. 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 ). The minimum flow rate should also be met to make sure that the tankless water heater fires. As mentioned above, there are several more error codes you can potentially encounter with a Rheem tankless water heater. Check the air intake and exhaust venting. Ignition failure at start up. In this article, we will look at the main Rheem error codes, what they mean, and how you can address them. I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. Secondly, take your eyes on the heat exchanger to see whether it gets dirty or not. If this drainage system gets clogged, your tankless water heater will flash the error code 29 to prevent the burner from being flooded. Reason: Insufficient Heat Exchanger Temperature. window.mc4wp.listeners.push( Your email address will not be published. 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. Hire a plumber and tell him to clean the inlet filter at the cold water connection to the unit. If necessary, replace the remote control, remote control wiring, or the PCB. We recommend you check out this in-depth guideline on Rheem Tankless Water Heater Code 11. Check that the vents are connected properly with no obstructions, the correct materials should have been used for the installation. Ensure that the altitude is set correctly for your particular needs and the vents meet the necessary size requirements for safe operation and use. Ensure minimum water flow and clean cold water inlet pipe and aerator screens. Rheem error code 52 indicates an issue with the proportional gas flow regulator valve (PGFR). After removing the front panel cover, press the air intake switch and ensure it operates correctly.

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