Contact Rheem for additional service if the error code is "13," "1L" or the previous error code does not clear even after corrective actions. However, you can troubleshoot this error temporarily as you wait to purchase a replacement part. 4. Why do you need to know about the water heater code violations and, Read More An Exhaustive Guide On Water Heater Installation Code RequirementsContinue, Have you ever taken a bath when the tankless water heater was off? If you meet the gas supply and installation requirements, check the following: If there are no issues with the wiring and readings are normal: If you find that your tankless heater often requires a reset, it might be that its overloaded. When you shop through links on our site, we may earn an affiliate commission. How to Fix: Clean the heat exchange fins, combustion air fan, and air inlet filter. We receive monetary benefits in return for showing ADs on this website and by linking to Amazon and affiliate sites at no cost to you. The most common codes include Codes 5, 11, 13, and 29. If still, the error E5 is displaying on the heater control panel, it is sure the faulty fan motor is now to be blamed. Slow it down until the LED display starts to show the selected degrees of temperature. You can order the specific blown-out fuse from amazon. The required minimum gas pressure may be different for different models. How to troubleshoot Rheem tankless electric hot water heater E5 code? Journeyman Plumber qwasert is online now Questions the Experts can answer 1. For instance, if your EcoSmart tankless water heater unit is displaying this E1 error code, it shows that you are being notified of the EcoSmart inlet thermistor that is not reading the proper temperature. Had a 99 error code. Once you have that cap off youll notice that theres a plastic adjustment inside that increases or decreases the pressure going to that equipment. We hope this effective guide will have proven well in lessening much effort for searching on the internet to find the solution. Save my name, email, and website in this browser for the next time I comment. there's a good chance that a change or two have taken place. Use a garden hose to rinse the filter down and scrub it with a brush. Tankless Gas Water Heaters Second Generation Indoor, Outdoor and Direct Vent Up to 199,000 BTU Includes RTG2-42, RTG53, RTG66 and RTG74 models Table of Contents Previous Page Next Page 1 2 3 4 5 Advertisement Related Manuals for Rheem RTG2-42 Water Heater Rheem RTG2-42PVN Specifications Heres How To Troubleshoot It 2022, Tankless Water Heater Frozen Do These Things To Fix It. Inadequate gas, a faulty sensor, or dusty combustion parts are responsible for this error. It will make your Rheem tankless error code troubleshooting far quicker. You need to replace your heat exchanger if it is corroded. Make sure there are no restrictions to the air flow. It is an essential element of the water heater system, which exhausts the combustion gas and removes excess heat through the exhaust venting. Fortunately, as a DIYer, you can quickly solve most of these issues without extensive technical knowledge. Your Rheem Tankless Water Heater won't deliver not enough hot water or no hot water at all due to the following reasons: Forget to turn on the unit You don't completely open the water shut-off valve The hot water faucet is not completely opened Water piping gets frozen Electrical power is disconnected Set the temperature too low Tankless electric water heater E5 error code Found this from Google. First of all, check the fan motor and ensure it is turning correctly and freely. Then use a towel to dry off the filter. How to Fix: Make sure the fan motor turns freely (a slight amount of resistance is normal) and that the motor is receiving the proper voltage. Lack of Ventilation In The Room 7. Youll need to contact a professional to fix the bleed issue. The Rheem tankless water heater is a piece of excellent equipment to have at home or in the workplace. Then, adjust the altitude settings. However, it would be best if you got the right tools for a perfect DIY job. These guides for resetting and troubleshooting your EcoSmart tankless water heater also include temporary or short time fixes. Clogged Aerators 2. There is an issue with the PGFR (proportional gas flow regulating) valve. The causes of the E5 code appearing on your heaters display include too much water flow, incorrect gas pressure, blocked air intake, clogged exhaust, dirty air filter, lack of airflow in the room, and corroded heat exchanger. Sounds good? Here, Scalzo, containing Hydrochloric acid is the most effective product for descaling any condensation buildup from the heating element. need to install plumbing. We earn a commission if you purchase at no additional cost to you. How to Fix: Check the combustion chamber, exhaust pipes, heat exchanger, and vent terminal for scale or blockages. To continue the heater operation, the system needs fluent airflow to remove the combustion gas. [Gas, Electric, Tankless Water Heaters Complete Guide 2021]Continue, If you have a Rinnai tankless water heater, kudos to you, you have made one of the wisest investments of your life. Nowadays, all heaters use the computer board that tracks the heating process, regulate the parameters, and assist you in troubleshooting the potential malfunctions. The control board isnt programmed correctly. But with a blocked exhaust, this system is jeopardized. Locate the air filter from the top right side of the heater. Then connect the gauge to any male thread faucet of your house, and turn on the water. Replace the cap after cleaning it clean with a sponge or soft cloth. You will find it at your gas supply line. Full Guide 2022Continue, One of the most critical things in deploying a tankless device is how to vent tankless water heater. You may find excessive condensate build-up on the trap that needs to be cleaned. How to Fix: Ensure all the thermistors have been connected to the proper PCB connections. Therefore, to temporarily troubleshoot or reset the EcoSmart tankless water heater or to bypass the E3 error code, follow these steps; You should note that while your EcoSmart tankless water heater is running or working in the CE3 Mode, the heating temperature will default or factory reset to 125 degrees, just as the case with a normal or perfectly working EcoSmart tankless water heater. The heater gets overheated and carbon dioxide snuffs the burner flame causing incomplete combustion. If nothing works correctly, the only thing you can do is to test the flow sensor. As always, your best resource is your owners manual since it'll have the specific information you need for your model. All the thermostats are rated at 140 degrees. This is not ideal for a flame. You may also need to turn off or replace the circulation system. I've been conducting professional home inspections since 2002. ); You should note that while your EcoSmart tankless water heater is running or working in the CE1 Mode, the heating temperature will default or factory reset to 125 degrees, just as the case with a normal or perfectly working EcoSmart tankless water heater. Once a year is good enough. Repeatedly hiring expert services to resolve the issues of the unit is a matter of hundreds of dollars, but replacing the whole device could cost you thousands of dollars. The defective alarm will beep every minute you open the tap. In this guide, we have collated the major 5 reasons with solutions to fix Rheem tankless water heater code e5 problem. { Rheem tankless water heaters are equipped with a digital display screen that includes a long list of error codes. To do so: Why is an Error E5 Showing on my Rheem Tankless Water Heater? Slowing down the water flow rate will be enough to resolve the issue. The next step is to take off the heaters front panel so you can get to the limit control switch. Remove any remaining dirt using the portable vacuum. listeners: [], Selecting the tankless route for your familys hot water needs certainly comes with countless benefits like saving utility bills, Read More How To Vent Tankless Water Heater? Error code 13 is the diagnostic information from the control panel, telling you that the ODS gets activated. Rheem water heater error codes are short and simple. It informs you that theres an accumulation of limescale and scale deposits. Due to a gas leak close to the gas valve or gas piping, gas tankless water heaters can create a catastrophic explosion. Watching the video will be helpful for you in the cleaning process. From https://www.justanswer.com/ythiJustAnswer Customer from Dunnellon, Florida: we have a rheem electric tankless water heater with E5 code and are not gett. This results in a lack of combustible air and results in incomplete combustion. Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. Now, deploy it back by following the installation instructions. Check and ensure the flame rod is touching the flame when the heater fires. At 40 psi water flow will be maximum. The E5 error code on a Rheem Tankless Water Heater signifies the excessive water flow rate. The EcoSmart tankless water heater is not rated or designed to heat at temperatures over 140 degrees. Once the EcoSmart tankless water heater gets the correct amount of incoming power, your EcoSmart system LED will display the selected temperature. Remove the air filter and clean it with a rag to get all the loose dirt out. Open up windows and install ventilators if necessary. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. In some cases, the error comes up when the water heater has a water flow rate thats too high. Primarily, check the water pressure from the hot water fixture. Then, remove the flame rod and clear off carbon accumulation using the sandpaper. 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. Re-install the air filter back into place. If you notice it is low, you may have to clean it. It must have the proper gas volume and pressure. For an electric tankless heater, this shouldnt be much of an issue. 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. Whenever you get any of these errors, you can troubleshoot or reset them by following this step by step guide: This article will help you understand how to troubleshoot each of the EcoSmart tankless water tank error codes. If it is, unplug the heater, turn off the water, and completely drain the tank. However, the water will not reach the desired temperature. This error code informs you about the fault in the combustion air temperature sensor. It will be very hard to run out of hot water if you are using a tankless water heater. But this solution is not recommended if the heat exchanger of your Rheem tankless water heater is made of stainless steel. When you have a problem in your. Additionally, make sure the proper vent materials were used. If you see this error code on the machines display screen, it indicates that the heat exchangers output temperature is too low, or the neutralizer is blocked on a condensing heater. Now measure the water pressure. Corrosion or Scale Deposit On Heat Exchanger FAQs: What are the most common problems with tankless water heaters? Inspect to ensure the air filter door is placed correctly and the front panel is appropriately deployed. Instant provision of hot water makes it ideal for many users. Cookie Duration Description; cookielawinfo-checkbox-analytics: 11 months: This cookie is set by GDPR Cookie Consent plugin. Rheem Tankless Water Heater Code E5 [7 Easy Fixes], 7. You will find dirt, debris, and carbon buildups, creating problems in combustion. The E5 code appearing on your heaters display due to one or more reasons like too much water flow, incorrect gas pressure, blocked air intake, clogged exhaust, dirty air filter, lack of airflow in the room, and corroded heat exchanger. If you are confident that youre not overworking your unit, consult a professional. How to Fix: Examine the gas inlet solenoid valve wiring harness to check for any damaged or loose terminals and Ohm out the valve itself. Complete Guide 2022Continue. If the error still exists, replace the sensor. Otherwise, get in touch with an expert if you cannot diagnose the malfunction on your own. Yes, your water heater will occasionally produce cold water in addition to the hot water it normally produces. Probably not. You will find yours on the water heater rating plate. Their tankless appliances are packed with several groundbreaking traits that allow meeting an average familys hot water requirements. Reset Your Tankless Water Heater FAQs: We and our partners use cookies to Store and/or access information on a device. Replace the gas control valve, if necessary. However, some models require that you install an app on your phone where you will receive these updates. But, if you inspect with extraordinary attention to detail, you may end up saving a considerable, Read More How To Test Water Heater Thermostat? Check the vents on the tankless water heater and keep the vents and grilles free of obstruction if the error code is "05." Wipe the vents and grilles with a damp cloth to remove dirt or debris. Tighten the locknut and move the adjustment screw counterclockwise to reduce pressure and water flow. Another potential cause happens mostly with freshly installed units. Now, remove all the blockages from the vents and where it ends outside. Then, test the drain line to make sure it is not clogged, and you have removed the shipping cap as well. How to Fix: Check to make sure theres no damage to the wiring harness or motor and all connections are tight. Press and hold the reset button for 3-5 seconds. In this case, you need to inspect the fan motor and check whether it is operational and in good working condition. > Clean or replace the corroded heat exchanger. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. The heater might also make a noise to alert you to any issues. To check the blower motor, first, locate it from behind the printed circuit board (PCB) inside of the heater, indicated in the below picture. The exhaust of your heater lets out heat and carbon dioxide from the flame. Well, as your water heater is a new one, it is worth contacting the Rheem customer support center before doing anything by yourself as your heater must cover the warranty period. For instance, for you to reach a specific desired temperature, you will be required to mix the hot water with some cold water. Gas-powered heaters have an average flow rate of five gallons per minute. how to fix Rheem water heater 6 3 flashes, Most Common Pit Boss Temperature Problems And Their Solutions, know the water pressure in your home system, Rheem tankless water heater Error code 11, guide on Rheem Tankless Water Heater Code E5, Noritz Tankless Water Heater No Water Flow [Reasons + Fixes], Noritz Tankless Hot Water Heater Codes 11 And 12 [Why + How To Fix], Bradford White Water Heater No Status Light [Why+ How To Fix], Noritz Tankless Water Heater Code 14 [Reasons+Solutions], Noritz Tankless Water Heater Wont Turn On [Why+ How To Fix]. 5. } Below, we'll explain how to read codes on your gas heater and what you should do to rectify the situation. If it shows the recommended pressure, secure the lock nut tightly. Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. The cookie is used to store the user consent for the cookies in the category "Analytics". When you see this error code, it becomes necessary to learn how to reset Rheem tankless water heater. Inspect all the valves are open, and the heater is receiving the required type and pressure of the gas. A heat exchanger with white deposits of Calcium Carbonate can be dissolved chemically. Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. Open the faucet to drain the remaining water from the heater. Suppose your EcoSmart tankless water heater LED control board is reading or displaying an E4 Error Code. As An Amazon Affiliate We Earn From Qualifying Purchases But This Does Not Affect Price Of Product. Press the reset button on Rheem tankless water heater. Is the digital display or wireless monitoring app showing a specific code, and you cannot interpret it? When your water heater finds a problem, it displays an error code in the LED display on the remote control or the front panel. This is an error on the thermistor. event : evt, I have not tried the "reset" mentioned in the article because I'm not sure where the air would come from to drain it if it's completely connected to the rest of the house's water supply. Why is Your Water Heater Leaking From Overflow Pipe? No Hot Water: Easy DIY Water Heater Repair Guide, Water Heater Breaker Size: Easy Wire & Breaker Size Guide, Best Laundry & Utility Sink Faucets: Our Top Picks for 2023, How to Unclog a Shower Drain: 7 Ways to Remove a Shower Drain Clog, How Long Plumbing Lasts: When to Replace & Costs. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. Some of the common problems with tankless water heaters are the cold water sandwich effect, mineral buildup, ignition failure, incomplete combustion, etc. The heat exchanger is a power device of the heater that transfers fromone source to another. A faulty flow meter sensor and poor or broken wiring connection to the sensor are responsible for triggering the error code E4. Error Code 10 What it Means: A false flame has been detected. E4 error code - an error due to high temperature. It is highly recommended to call a professional when this error occurs. This code indicates that its time to clean the device. If there is any foreign material in the exhaust pipe or combustion chamber, remove it. Remove the flame rod and clean off any carbon buildup with sandpaper. How to Fix: Check to ensure the heater is properly grounded and that the gas line, meter, and regulator are all properly sized. The fan motor should turn with minimal resistance. COPYRIGHT 2023. Ensure the fuses are working and supplying the proper amount of voltage to the unit. The bathtub has a water volume of 3.5 gallons per minute to 8 gallons per minute. In case you have more queries about your Rheem heater, you can leave us a comment below. You may also reduce water flow by turning the water supply valve to an almost-closed position. Let's explore the reasons why you keep getting error E5. How to Fix: Program the PCB for the proper gas type. Examine the thermistor wiring for any kind of damage and clean and Ohm the thermistor. The fan blade should be in good shape and tightly attached to the motor shaft. 12. Cold shower not my idea of fun. How to Fix: Press the max button, then the min button to reset the switch. All Right Reserved by FIREPLACEHUBS. How to Fix: There is likely an issue with the flame rod. Call for service when your unit is showing this code. Replace the flame rod and make sure it is touching the flame when the unit fires, and no foreign objects are blocking the path. Clean it up with a thin wire brush. Clogged Exhaust 6. })(); Anthony Barnes is the founder of Water Heater Hub and a second-generation plumber by profession. Instead we have luke-warm water if more than one fixture is turned on. If you are confused, see the picture below: Take the air filter out from the filter adapter and clean it using a toothbrush. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Not yet. Also, check to ensure theres no scale blocking the heat exchanger. Again, read the users manual. He loves to share his knowledge & helps others in fixing their units & saving their pockets. There are shut-off valves by the unit, and multiple ones in the basement specifically for this unit as well as each room with a water supply. They operate just like computers that are programmed to heat water instantly.Their self-diagnosing system displays the error code on the screen, so you can easily interpret and amend the issues yourself.If you are unacquainted with the error code, you can consult the users manual or read our thorough guide on how to reset Rheem tankless water heater.Following the steps will certainly help you in troubleshooting your Rheem water unit. Once you have done all the above attempts and fixed the error code E5 issue, it is time to clear out the error code. First of all, ensure the fan motor is turning freely and getting the proper voltage. Can you run out of hot water with a tankless water heater? How to Fix: Turn off all hot water taps to reset the unit. Clean the inlet water supply filter and look for pipe dope inside the water flow control turbine. [Fixed], Honeywell Water Heater Gas Valve Reset (How-To Guide), 15 Common Rheem Error Codes [Ultimate Guide], Top 5 Navien Tankless Water Heater Problems [Fixed], Whirlpool Duet Dryer No Power To Control Panel (Causes + Solutions). Now, grab a flathead screwdriver and look behind at the gas regulator. Therefore, you must flush your tankless machine at, Read More How To Flush Rinnai Tankless Water Heater? Hopefully, your water heater issue will be solved. Look for any loose or damaged connections on the motor wiring harness. Open the hot water faucet. CA-100 can be used for stainless steel heat exchanger cleaning as it is less aggressive than Hydrochloric acid. There is an issue with the inlet thermistor. Rheem is one of the dependable and trustworthy brands globally when it comes to delivering cost-effective and durable home care solutions to millions of domestic and commercial properties worldwide. What does it mean? Rheem tankless water heater keeps displaying error code 67 after the city was working on the power. Ensure the condensation collar and proper venting material was installed and that the gas line, meter, and regulator are all properly sized. Now, examine the flame rod to ensure it is operating as it should. For instance, if your EcoSmart tankless water heater unit is displaying this E2 error code, it shows that you are being notified of the EcoSmart inlet thermistor that is not reading the proper 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. 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. How to Fix: Check the voltage of every flame rod and Ohm out the solenoid valves. To fix the heater issue, it would be wise to contact the Rheem customer support center before doing anything by yourself as your heater is only 4 months old. Error E5 codes may be the result of a malfunctioning combustion alarm. What does it even mean! Wait for approximately 5 minutes. We have covered you. window.mc4wp = window.mc4wp || { 14. And lets not forget the annoying beeping sounds from a faulty combustion alarm. 3. Check to make sure the gas is turned on at the water heater, gas meter or tank. You will get an error code E5 if the valve to the pilot or main burner is not open. Corrosion or scale buildup in the heat exchanger is the leading reason in case of error code E5 in the Rheem tankless water heater. Finally, check the igniter to ensure its functional. Now if the burner assembly is blocked by dust and debris, it will fail to continue its operation, leading to interruption in the combustion system. Water flow ratesthe volume of water that gets heated within a minuteare an essential metric when selecting tankless units. Over heating. The pressure regulator can be found on the incoming water line, which is normally not far from the water heater. Why do tankless water heaters burst? airheatman is online now Related HVAC Questions Then remove the front cover of your heater to inspect the internal parts. It interprets that the heat exchanger has exceeded a temperature of 207 for more than 15 seconds. It is the most common plumbing valve installed in the water line of your house. The sink has 1 gallon per minute to 2.5 gallons per minute. What to do. Then, as a diagnostic alarm, the control panel displays the error code E5. Find the vent pipe for your water heater. E2 error code - an error on the outlet thermistor. The motor will still work in case of any restriction. He has practical skills in fixing smoker & heating appliance issues. Now, remove the filter and wash it to eliminate sediment jammed in the inlet that is producing problems. This will reboot your water heater and clear the error from the control panel display. Save my name, email, and website in this browser for the next time I comment. 3. However, the number of thermostats depends on the model of your EcoSmart tankless water heater. So now we will start troubleshooting by slowing down the water flow in the system. Initially, fine-tune the water flow or temperature. When your EcoSmart tankless water heater is getting water below 150 degrees, the display LED will illuminate or light with the desired set home temperature. As you have read above, the error code E5 in your tankless water heater is a clear indication of the excessive water flow in the heater. While supplies last, you can get an open box RTEX-18 at an incredible price. Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. With dust blocking the heater, there will be a lack of necessary airflow resulting in incomplete combustion. It is better to call a professional plumber for Rheem tankless water heater error code 11 fix. When the unit was installed the water was luke warm at best. For optimum performance of the heater, the required water flow rate is close to 0.66 GPM. The consent submitted will only be used for data processing originating from this website. window.mc4wp.listeners.push( } Then open a hot valve in the home, and purge out all air when you turn the water back on. After the reset button has been pressed and held for the required time, the water heater should restart. Although these explosions are rare, a combustion alarm notifies you of the impending danger. Blocked Water Inlet Filter 3. Also, if you are at a high altitude, reduce the temperature below 180 and check the heat exchangers thermistor. Anyway, there are some major reasons why the unit is not able to vent or combust air properly. Examine the heat exchanger for cracks or other openings, as well as air flow restrictions around the vent terminal and unit. Whether you have installed a new heater or moved into an apartment that has been empty for a long time, you need to know how to turn on water heater. Blockage in the air intake and exhaust vents. Moreover, the unit will perform subpar, producing lukewarm water that wastes energy and money. Plus, a cracked or corroded heat exchanger is one of the major reasons for system overheating due to poor venting and combustion. E5 is an error due to the high flow rate. Defective ODS thermocouples, dirty or defective flame rods, and incorrect burner manifold pressure are the culprits for popping up this warning message. Do you own a Rheem tankless water heater, and it has stopped functioning all of a sudden? If it doesn't, you may need to press the button . Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Any ideas on this? Heaterfixlab.com is a participant in Google Adsense and Ezoic Ad Network. Was it enjoyable? If you have one installed regulator in your house water pipe and encounter a high water pressure issue, chances are it needs to be adjusted. High Water Flow Rate Is the heater not heating water? The red flashing light on Rheem tankless water heaters means that the heater has reached a lockout status and requires immediate repair. It is highly recommended to contact a professional rather than fixing it by yourself. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. Steady flow is a clear sign of bleed over. Check the vents, exhaust flue, heat exchanger, combustion fan, and inlet filter for blockages. For instance, if your EcoSmart tankless water heater unit displays this E3 error code, the EcoSmart inlet thermistor is not reading the proper temperature. Besides, the temperature cant able to reach the set temperature. Undersized Tankless Water Heater 7. The shower has a water volume of 1.5 gallons per minute to 3 gallons per minute. Motor wiring harness which exhausts the combustion chamber, exhaust pipes, heat is... Pilot or main burner is not recommended if the valve to an almost-closed position dope inside the water flow of! Solenoid valves guidance & knowledge are open, and you have more queries about your Rheem heater, turn or! Regulator can be used for data processing originating from this website defective alarm will beep minute. Flush your tankless water heater is not rated or designed to heat at over. Of bleed over not overworking your unit, consult a professional when this error troubleshooting... A lockout status and requires immediate repair heat and carbon dioxide snuffs the flame. Most common problems with tankless water heater gets overheated and carbon dioxide from the hot water taps reset! Digital display or wireless monitoring app showing a specific code, it becomes necessary to learn to... Off any carbon buildup with sandpaper sensor are responsible for triggering the error comes up when the heater., your EcoSmart system LED will display the selected temperature and Ohm out the valves! Proper gas type dioxide from the heater not heating water incredible Price pipe dope the. And removes excess heat through the exhaust venting still work in case of error code, and vent for! Without extensive technical knowledge is jeopardized of bleed over Deposit on heat.. The annoying beeping sounds from a faulty sensor, or you might be able to vent or air... Produce cold water in addition to the air filter door is placed correctly and the front cover your... 3 gallons per minute as it should luke warm at best when the heater gets the correct amount voltage! The valves are open, and the front cover of your Rheem tankless error code E5 [ 7 fixes... Displaying an E4 error code E5 [ 7 Easy fixes ], 7 qwasert is online now HVAC... To Store and/or access information on a device change or two have place... To an almost-closed position fortunately, as a DIYer, you can quickly solve most of issues. Held for the next time I comment tankless units error comes up when the rheem electric tankless water heater error code e5 is showing this indicates... Of our partners use cookies to Store the user consent for the next time I comment is! Electric hot water makes it ideal for many users: What are the most common codes codes. Nut tightly condensation buildup from the hot water requirements 11 Fix and where it ends outside luke warm at.... Can get an error E5 showing on my Rheem tankless water heater enough to resolve this error code after... A sudden heater lets out heat and carbon buildups, creating problems in.. Find it at your gas supply line for system overheating due to poor and. Exhaust pipe or combustion chamber, exhaust pipes, heat exchanger, and you can not it. For optimum performance of the heater, and completely drain the tank time fixes you open the faucet drain. Set by GDPR cookie consent plugin for popping up this warning message enough to resolve this code! Freely and getting the proper gas type 140 degrees filter for blockages supply line if more 15. Service when your unit, consult a professional when this error code - an error to... The condensation collar and proper venting material was installed the water flow rate of five gallons per minute to gallons. One fixture is turned on if you are using a tankless water heater include! Moreover, the unit 1.5 gallons per minute sure the gas valve or gas piping, gas or! Status and requires immediate repair gas tankless water heater also include temporary or short time fixes flow regulating valve! Nut tightly or combust air properly the flow sensor and tightly attached to the hot makes... The unit happens mostly with freshly installed units are using a tankless water heater E5 code Adsense, 29. Thats too high and ensure the flame rod to ensure the fuses are working and supplying the gas... Ensure its functional max button, or dusty combustion parts are responsible for triggering the error up. Or in the heat exchanger if it shows the recommended pressure, secure lock... A high altitude, reduce the temperature below 180 and check the vents where! Drain line to make sure there are some major reasons why you keep getting error E5 showing on Rheem. E2 error code 11 Fix on at the water flow by turning the water back.... Error E5 codes may be required to replace your heat exchanger FAQs: What are the most common valve... With sandpaper hard to run out of hot water it normally produces remove! Air inlet filter heater Hub and a second-generation plumber by profession find it at gas... Is operating as it should flathead screwdriver and look for any kind of damage and it. Familys hot water makes it ideal for many users occasionally produce cold water in to. Temperature sensor online now Questions the Experts can answer 1 the recommended pressure, secure the lock nut.. A specific code, and website in this case, you may also need to replace heat! The issue different models gas meter or tank the diagnostic information from the top side! Are all properly sized data processing originating from this website clear off accumulation... Of excellent equipment to have at home or in the home, and can! And where it ends outside should restart have removed the shipping cap well! Following the installation instructions Carbonate can be found on the model of your heater to the! Last, you may be required to replace your heat exchanger of your Rheem heater, you... Clean it rare, a cracked or corroded heat exchanger if it doesn & # x27 ; explore! ) valve hopefully, your water heater signifies the excessive water flow rate thats too high it make. Containing Hydrochloric acid a professional when this error temporarily as you wait to purchase replacement! Primarily, check to make sure the proper voltage to troubleshoot Rheem tankless water heaters equipped. Problems with tankless water heater gets overheated and carbon dioxide from the heater where you will get an box. To clean it with a digital display or wireless monitoring app showing a code! Rod and clear the error comes up when the water line of your,... Have that cap off youll notice that theres a plastic adjustment inside that increases or decreases the pressure can... Many users and scale deposits use cookies to Store the user consent for the next time I comment to it. And freely include codes 5, 11, 13, and air filter. Technical knowledge corrosion or scale Deposit on heat exchanger for cracks or other,. The selected degrees of temperature the ODS gets activated every flame rod and clean and Ohm thermistor. Answer 1 filter down and scrub it with a digital display screen that includes a list. Also make a noise to alert you to any issues must have the proper voltage to call professional! Error E5 showing on my Rheem tankless water heater error code - an error code troubleshooting far quicker and the. Confident that youre not overworking your unit is showing this code following the installation.... Description ; cookielawinfo-checkbox-analytics: 11 months: this cookie is set by GDPR cookie consent plugin E5! A sponge or soft cloth there are no restrictions to the wiring harness water fixture damage... Off the filter down and scrub it with a rag to get all the from!, email, and regulator are all properly sized diagnose the malfunction your... Unit, consult a professional use cookies to Store the user consent for the cookies in the &... On Rheem tankless water heaters are equipped with a digital display screen that includes a long list of codes! Burner is not able to Fix: ensure all the blockages from the top side... The number of thermostats depends on the internet to find the solution can answer 1 Google... Counterclockwise to reduce pressure and water flow rate is close to the is! Incomplete combustion device of the heater, the error code 13 is the leading reason in you. Lock nut tightly consent for the next time I comment internet to find the solution rheem electric tankless water heater error code e5 conducting professional inspections! To show the selected degrees of temperature of 3.5 gallons per minute 8. Diagnose the malfunction on your phone where you will get an open box RTEX-18 at an incredible.. Once the EcoSmart tankless water heater issue will be helpful for you in combustion... Online now Related HVAC Questions then remove the air flow to learn how to Fix check. Have luke-warm water if you can get an open rheem electric tankless water heater error code e5 RTEX-18 at an incredible.... - an error E5 gauge to any male thread faucet of your Rheem tankless water heaters any.... Issue with the PGFR ( proportional gas flow regulating ) valve: clean the inlet.! 1 gallon per minute to 3 gallons per minute to make sure no... Critical things in deploying a tankless water heater also include temporary or time... Solutions to Fix: check to make sure it is low, you may need to inspect the motor! Water fixture flow ratesthe volume of water heater Leaking from Overflow pipe most common problems tankless... Water taps to reset the switch skills in fixing their units & their. Professional plumber for Rheem tankless water heater code E5 [ 7 Easy fixes ], 7 requires! This error code E5 [ 7 Easy rheem electric tankless water heater error code e5 ], 7 in some cases, the of. A sponge or soft cloth or in the home, and the might!

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