If the unit reaches 230F, however, it will again display an error code 15, shut down, but not start automatically on its own. there's a good chance that a change or two have taken place. The diagnostics become simpler since the Rheem tankless heaters use the electronic control board and advanced technology with an optional remote controller and control panel. The water temperature on the remote control is set too high. Before you do ask for extra help, find out what the error code means and you may be able to solve it without making a service call. } Heres what you can do: Code 12 signifies that the water heater does not detect a flame. Rheem error code 10 means a false flame has been detected. If the fan doesnt move, then ensure it receives enough voltage. Rheem error code 51 indicates a problem with the gas inlet solenoid valve. Damaged Igniter Wire Harness 04. To fix this issue, you need to slow down the flow rate. All content found on this website is intended for informational and educational purposes only. Take the time to remove any obstructions from the venting as well as where the vent terminates outside. Sensible Digs is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. } To erase the error code 13, start with cleaning the dirty flame rods. 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. Unline electric water heater units, a Rheem tankless unit displays an error code when something out of the ordinary happens. You can also refer to your models user manual. Has your Rheem tankless water heater suddenly stopped working? If the water doesnt flow, we recommend you increase the flow rate. After another 20 seconds, switch the remote control on and the water supply too. I am glad to help. How to use a diagnostic system to repair a faulty heater. Most of the time, when troubleshooting a Rheem tankless water heater, you will have to reset it. However, with so many different error codes, you might have no idea what each code means. What Is The Most Common Problem Associated With A Water Heater? If you exceed the limit, the water will no longer be heated. 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. A tankless water heater is a complicated device. The unit will throw the error code e51 if the gas inlet solenoid valve is at fault. There could be another issue with the heating elements. window.mc4wp = window.mc4wp || { Finally, check for blockages in the inlet filter and combustion fan. I guess the PA error code is a air conditioner related fault code. If you dont know how to detect the source of the problem, you can read this guide. 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 Rheem Tankless Water Heater displays a lot of error codes due to specific reasons. 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. Cause: The water heater and its burner doesn't get enough gas. Check the igniter itself to ensure it is working, including how it was wired to the device. Rheem tankless water heater starts malfunctioning over time. NOTE: Because these are potentially hazardous areas, dont attempt to fix a Code 11 unless you are a professional. listeners: [], 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. In some cases, the error comes up when the water heater has a water flow rate that's too high. There could also be a problem with the outlet thermistor which is the outgoing water temperature sensor. If the remote control works, we bet the wiring is at fault. 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. A false flame being detected may also necessitate a service call, yet there are certain steps to take first. If there is no pulse output, you should replace the fan. Again, there should be no obstructions to the airflow and the vent terminal should be clear. Rheem Tankless Water Heater Error Code 29, 11. 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. However, if you are mechanically inclined, keep scrolling. Whichever issue it is, your unit will likely still be operating and you can solve the error yourself. After you see a code on a tankless water heater, a common first step is to reset the device. Double-check that the exhaust venting and air intake are both installed properly and look to be in good working order. 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. Before they arrive, you can check that the gas valves are all open with gas actually reaching the unit properly. 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. Check that the program chip is properly installed and that the control board recognizes the right type of gas, which could be propane or natural gas. 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. There are many error codes on a Rheem tankless water heater (see also Rheem Water Heater LeakingWhat To Do?) and their reasons differ vastly. Also, we broke down the troubleshooting steps to clear the message. A defective flow meter sensor, broken wire, and poor connection are the culprits that trigger the error code E4. Enjoy the comfort and convenience of continuous hot water on demand with a Rheem tankless water heater. Inspect the condition of the outlet thermistor, heat exchanger thermistors, and gas valve. Ensure the unit is properly grounded and its wiring is in good condition. Hire a plumber and tell him to clean the inlet filter at the cold water connection to the unit. If the error code persists, contact a licensed technician. The electronic control board will display the current temperature, but the unit is not working at all. Replacing the control board is the only solution to fix this water heater issue. Rheem error code 05 means there is a problem with the combustion. Before developing Water Heater Hub, Anthony Barnes was a full-time plumber, and he has undertaken a wide variety of projects over the decades. Rheem error code 33 indicates a hot water outlet temperature thermistor problem. If everything looks in good condition, you may replace the PCB. You may need to replace the air filter switch assy or the PCB. Info about all performed services, including dates. Rheem Tankless Water Heaters Error Codes Breakdown Error Code: No Code It occurs when the water flow rate is extremely low. Ensure the heat exchanger flapper is not blocked and moves freely and that the whole vent system is clean and not blocked. The heat exchanger may also be suffering from separations or cracks. Insert a flat-head screwdriver through the thermostat dial. Here are some general steps: When there is a problem with your Rheem tankless water heater, it will display an error code, either on the digital display or on a smartphone app. You may want to do a service call though you can check the wiring on the remote control yourself, specifically for any loose or damaged connections. { Code 1L indicates that there is a limescale build-up in the unit. Rheem error code 03 is found on units with MIC-180 or EZLink. Replace the PCB or the PGRF valve if necessary. 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. Want to know what the error code displayed on your Rheem tankless means? 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. 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. Step #1: First off, turn off all hot water faucets that are connected to your Rheem tankless water heater. 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)). If you get the voltage reading, take another measurement at connector B between the White#2 and White#8 wires. When there is any problem with the unit, it will pop up an error code on the display. Heres how to do it: This should allow the device to fully reset itself, and you might find the error code has magically disappeared. Otherwise, you should replace the remote control with a new one. 14. You could ohm out all the solenoid valves, inspect the flame rods for the correct voltage, or even replace the gas control valve altogether. Should the heat exchanger keep a temperature of 207 F for a period of longer than 15 seconds then error code 15 may occur. Specifically, error code 92 would display when the water heater is continuing to operate and is a warning to replace the neutralizer soon. Also, make sure you tidy up the air inlet filter, combustion air fan, and heat exchanger fan. Solution: If you cannot find the problem in the venting system, and cannot remove what is blocking the regular operation, call the service. You should follow the same troubleshooting steps as in error code 51. Then, reset the Rheem tankless water heater again. Remove the access cover on the heater's side by unscrewing the screws. Before you make a service call, this is a good time to check the thermistor wiring for any damage or the thermistor for a limescale build-up. . Tankless models need routine maintenance to ensure they remain energy efficient. However, you should replace the PCB if the fans pulse output or the fan doesnt receive enough voltage. You will see a number that is flashing on the display, which will be accompanied by a beeping sound. The voltage should be 8 to 16 VDC. callback: cb Solution Initially, fine-tune the water flow or temperature. Rheem error code 32 means there is a problem with the heat exchanger thermistor. In this article, we will look at the main Rheem error codes, what they mean, and how you can address them. Now, remove the three side screws of the blower motor and take out the blower motor. The reset button is there for safety reasons. However, before you do that, confirm that the blower motor is turning freely as it may still operate with a small restriction. Rheem error code 66 indicates a problem with the water bypass control. You can use 100-grit sandpaper to remove the carbon buildup from the flame rods. How to use diagnostic system and fix the problems using the error codes that appear on the remote controller. Understanding Noritz error codes and troubleshooting Noritz water heaters. Receiving error code 61 -Faulty Blower Motor. 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. Obstructions could also result in error code 14 though if you cannot find one then consult a professional to troubleshoot the fault. Rheem Tankless Water Heater Error Code 10, 06. If your Rheem displays an error code 12, ensure all gas valves are open and adequate gas pressure. 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. Ensure there are no buildups, foreign objects, or deposits near or around the unit and its venting system and combustion chamber. The thermistor should also be free of any limescale build-up and may require a clean. 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. Flame failure during operation. Secondly, take your eyes on the heat exchanger to see whether it gets dirty or not. To learn more about error code 14, read this in-depth guide. Ensure the condensate line is installed correctly and is within specifications. Why Your Tankless Heater Requires a Reset. The most common codes include Codes 5, 11, 13 . You could also check the outlet thermistor, heat exchanger thermistor, and the gas valve are all in good working order. Follow the same troubleshooting procedures outlined in error code 61. The neutralizer drainage ports should be clear and the neutralizer drainage line (see also 7 Awesome Tips For Sewer And Drainage Line Cleaning) outside the unit must be clear too. You can find a full list of error codes here. If your Rheem displays an error code 35, inspect and ensure all thermistor connections are not loose and installed correctly. If there is information, the unit should be working correctly and require restarting. Therefore, our top advice is that you contact a professional plumber when you see an error code. Rheem Tankless Water Heater Error Code 61, Takagi Water Heater Error Codes [Ultimate Guide], Rheem Tankless Water Heater error code 13, Rheem Tankless Water Heater Troubleshooting Manual [Complete Guide], Basement Watchdog Battery Alarm Add Distilled Water, Basement Watchdog Battery Alarm [Corroded Terminals Or Bad Battery], Basement Watchdog Pump Was Activated Alarm, Loose remote control wiring or the remote control itself gets defective. on: function(evt, cb) { Consult the guide and see whether you have a grasp on the problem indicated by the code. Rheem water heater flashing red light 2 times. Increase the flow. Follow the descaling procedure to remove the scale build-up in the heat exchanger (there should be an error code). Rheem error code IL indicates a possible scale buildup in the heat exchanger. 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. Problems with the combustion can also be caused by the flame rod though this should only display on an indoor Rheem tankless water heater system. If 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. This error is preventable by descaling the water heater on at least once a year. Reason: Poor/Improper Combustion due to the flame rod. Resetting a Rheem Tankless Water Heater: Ultimate Guide, Candy Tumble Dryer Keeps Stopping: Troubleshooting Tips, Loc Error Code on Hoover Dryer: Troubleshooting Guide, [Fixed] Rheem Tankless Water Heater Code 12, Hot Water Heater Calcium Removal [How to Guide], Samsung Washer SUD Code but no SUDs? Rheem error code can display when the neutralizer or drain pipe gets clogged. It represents a water protection fault at the indoor unit. To reset the water heater, turn off the hot tap water and the unit itself. Reason: Insufficient Heat Exchanger Temperature. Also, make sure the gas flow valves are open and they dont get clogged with dirt or residue buildups. If the remote works, the problem is with the cable, and if it doesnt, with the remote control itself. 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. The red flashing light on Rheem tankless water heaters means that the heater has reached a lockout status and requires immediate repair. To fix this issue, you need to slow down the flow rate. You can also try shutting off the water and then disconnect the remote control. According to Rheem, the error code 10 will pop up when the fan motor fails to create sufficient ventilation. Reason: Remote Control Communication Fault. If the temperature is not within specifications, replace the thermistor, and if it is, you may have to replace the PCB. 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. The gas control assembly, the main burner, the flame rod electrodes, or the PCB may need to be replaced. })(); Anthony Barnes is the founder of Water Heater Hub and a second-generation plumber by profession. Switch off the unit from the control panel. 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. Cause: The gas shutoff valve is not open completely. Once you have an error code, take a look at our list to find out what the problem is. These are: Check the resistance readings of each sensor wiring and replace the sensors if not working correctly. The Rheem Tankless Water Heater P1 Code is a common error code that indicates a problem with the water heater. Run the unit and check if the error code persists. If needed, clean the inside of this motor. In this case, check the followings: 1. This code will be shown on the heaters digital display or sent to a mobile app on your phone. A flame failure is a little different from a failure to ignite and will likely require a specialist to take a look. Once your have your parts together, here are the steps to descale the water heater. It helps us diagnose and determine the exact problem with the water heater. window.mc4wp.listeners.push( Symptoms, causes, and step-by-step troubleshooting guide to fix the most common problems on Rheem on-demand models. Rheem error code 79 can be caused by condensation or moisture accumulation over the fan motor or damaged or loose wiring. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. 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. 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.) If you are confident that youre not overworking your unit, consult a professional. Also, inspect the flame rod electrodes and clean them. The most common codes include Codes 5, 11, 13, and 29. Knowing that the ignition has failed is straightforward enough yet finding out why can prove difficult. This is a complete guide on Rheem Water Heater Blinking Light Codes. The unit should work correctly if the water temperature is displayed in the maintenance information. An error code 90 typically indicates that there are blockages in the heat exchanger or blower motor. If you do not feel comfortable performing this yourself then you can contact a professional to do it for you. Tankless water heaters generally last considerably longer than tank-type heaters, as they dont hold corrosive water for prolonged periods. The connection to the thermistor is incorrect. 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. it comes to homes, an issue that frequently arises is that the unit that is installed is not of the appropriate size for the households requirements. A Clogged Neutralizer Is Causing Rheem Tankless Code 29. It means the desired water volume is too high that exceeds your desired preset temperature. There is a wide variety of potential causes for the problem, including faults with the supply of gas and electricity, or failure to regulate temperature. Ensure its installed correctly and measure its resistance. This means that the flow meter is not sending a signal to the computer which starts the machine. Any help you could provide or resource you can point me to would be greatly appreciated. On top of this, you must ensure the drain will not allow backflow. The gas pressure to your water heater should range between 1.2- 3.5Kpa. Those error codes dont only help you understand the actual problem with the unit but also make it a breeze to fix them. One for the hot side and another for the cold side. When I can see a flame but the code displayed is Code 10, the problem is that the flame sensor is malfunctioning. Ensure they are in good working condition and there is no blockage along with the piping. Sometimes this issue can be fixed by simply restarting the unit. And lastly, check out the burner manifold pressure. If the error code disappears, then the problem is within the venting. 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? Comprehensive step-by-step guide: How to install a hybrid water heater with essential tips and expert guidance for a successful installation. You may need to replace the thermistor or the PCB. If you have a Rheem tankless water heater, you may have noticed a code 11 on the display. We created this website in order to help our visitors to find proper information about HVAC troubleshooting, repair and most frequent questions about it. Check if the maintenance information displays the heat exchangers temperature. Rheem error code 90 indicates a blocked flue. Why Do You Feel Sticky After Swimming? For the air intake, remove then clean the air inlet filter and clean both the heat exchanger fins and the combustion air fan. The alarm sounds every 60 seconds when the tap is open. I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. 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. It will alert you that your water heater requires service or that there are damaged or broken components you need to repair or replace. Most tankless water heaters are operated by natural or LP gas. Otherwise, you need to change the PCB. Every electric water heater has a reset button, and with good reason. Rheem is a trusted American appliance brand that is close to 100 years old. If that does not work then you could confirm that the tankless unit is correctly grounded. A false flame can be attributed to the flame rod (or rods) touching the flame whenever the unit fires. Water can corrode your water heater and result in tiny fractures or cracks that will inevitably lead to a leak. A clogged air inlet filter, dirty heat exchanger fins, and bad heat exchanger thermistor are some culprits behind this issue. Ensure the unit is installed correctly, the hot and cold water lines are not mixed up, and there is enough water flow. 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. who is the girl in the xfinity commercial,
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