No spam, we promise. As such, you will be required to slow down the flow rate. Detach all wirings, PC board, and remote control, and then reconnect. Most of the time, when troubleshooting a Rheem tankless water heater, you will have to reset it. Thankfully, Rheems water heaters provide an error code when something goes wrong. Finally, you have to inspect the fan blade to make sure it is attached firmly to the motor shaft and spins freely. Rheem Fault Code E5 Each tankless water heater has a unique flow rate that it operates. How to Fix: There is likely an issue with the flame rod. Use a metal wire or plastic hook to retrieve any dirt that has become lodged. Rheem Tankless Water Heater Code E5 [7 Easy Fixes], 7. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. 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. Finally, Ohm out the safety circuit. Blockage in the air intake and exhaust vents. 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 you are done, regulate the temperature or flow rate of the machine. Find the vent pipe for your water heater. Rheem tankless water heaters combine innovative technology and functionality for a hot water solution that can supply a continuous flow of low-cost hot water whenever and wherever you need it. Once you have done all the above attempts and fixed the error code E5 issue, it is time to clear out the error code. How to Fix: Check to ensure all vent and heat exchange components are clean and properly connected. If you are confident that youre not overworking your unit, consult a professional. Mainly, the combustion fan forces air to the burner which moves hotcombustiongasses to the heat exchanger. Error code 00 - Continuous water heater Error code 05 - Inadequate flow of air into the combustion chamber that may result from blocked vent exhaust Error code 11 - Ignition failure that may be caused by partially opened or closed valves, excessive gas pressure and volume, open or short-circuited gas solenoid valve, a faulty igniter Sediment Deposits In The Heating System 5. So stick your flathead screwdriver in to increase the gas pressure, youre gonna go clockwise. When taking a shower, turning on many hot water fixtures at the same time might easily cause your water heater to reach its capacity limit. Your water heater may have reached its capacity, which would cause it to turn off unexpectedly in the middle of your shower. The heater gets overheated and carbon dioxide snuffs the burner flame causing incomplete combustion. Replace the gas control valve, if necessary. Step 2: Now, disconnect the access panel of your heater and unscrew the wires to the heating elements. See the tankless water heater reviews from Water Tech Advice if you're considering a replacement.. See our list of the best electric tankless water heaters. 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. This will reboot your water heater and clear the error from the control panel display. 3. The water flow rate in tankless water heaters must not exceed 12.3 liters, or 3.25 gallons, per minute. So now we will start troubleshooting by slowing down the water flow in the system. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . 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. 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. Relocate any hard objects that could be impeding the pipe and causing debris to build up inside. This is an EcoSmart tankless water heater error on the outlet thermistor. S103 error code - an error on low voltage. Try to increase or decrease it to see if it works. How to Fix: Check the combustion chamber, exhaust pipes, heat exchanger, and vent terminal for scale or blockages. Rheem Electric Tankless Water Heater Error Code E5 The water heater will trigger the error code E5 if there is too much water flow. The tankless water heater will encounter a problem in the combustion system due to a blocked air filter, or from the blockage in the heater venting. Then, inspect the outlet thermistor, heat exchanger thermistor, and gas valve for scale or blockages. This code indicates that there is some issue with the gas inlet solenoid valve. Then use a towel to dry off the filter. Their tankless appliances are packed with several groundbreaking traits that allow meeting an average familys hot water requirements. It could be that the room your water heater is placed in has no air circulation. New tankless water heater heater. Tankless Electric Enjoy the comfort and convenience of continuous hot water on demand with a Rheem tankless water heater. If the problem is still not solved, you might have to replace the PCB or remote control. In both cases, the heater will still work. Re-install the air filter back into place. Steady flow is a clear sign of bleed over. If your EcoSmart tankless water heater LED control board displays an S103 error code, it shows that the EcoSmart tankless unit is not receiving the correct amount of power to run it. E2 error code - an error on the outlet thermistor. (function() { 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: Turn the hot water tap OFF. First off, locate and turn the water valve to the off position. new electric tankless Rheem 18kw giving E5 code with shower on. just had water installed reads E 5 code. Consult your users manual for this purpose. Unit is about two years old Rheem-36. First of all, clean the air inlet screen and fins on the heat exchanger. Rheem tankless water heaters are among the most reliable you can buy, but like any technology, they will eventually encounter issues. Blocked Water Inlet Filter 3. Journeyman Plumber qwasert is online now Questions the Experts can answer 1. To do so: Why is an Error E5 Showing on my Rheem Tankless Water Heater? The required minimum gas pressure may be different for different models. The code should clear on start-up. Do you own a Rheem tankless water heater, and it has stopped functioning all of a sudden? 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. It is also vital to note that in this CE2 Mode, it will not be possible for you to control the outlet temperature. Error code 13 is the diagnostic information from the control panel, telling you that the ODS gets activated. It occurs when the water flow rate is extremely low. Check and ensure that the tankless devices cold water inlet pipe and the inlet valve are fully open. It specifies that a false flame has been sensed. This code means that the unit cannot maintain a flame. Slowing down the water flow rate will be enough to resolve the issue. LPG users check Propane bottle level. If you want specific instructions, consult the owners manual. Please note that this is only a short-term fix to this error. Here's how to do so: 1. This thing should be cranking out 3X the hot water we need if every appliance and faucet is turned on in the whole house. Thus, you will end up with cold or lukewarm water instead of hot water. Well! Rheem tankless water heater E5 error code may also appear because of a corroded heat exchanger that wont produce enough heat and cause incomplete combustion. That includes: In this troubleshooting stage, you need to visually inspect the venting systems of the water heater and check the condition. Keep going at it till the wire brush comes out clean. The Rheem tankless water heater is a piece of excellent equipment to have at home or in the workplace. What does it mean? Disconnect the remote control, PC board, and all wiring harnesses, then reconnect. After cleaning, ensure a proper installation of the venting system. Now come to the condensate trap and look for any degradation. You may also wish to Ohm out the motor winding. Instead we have luke-warm water if more than one fixture is turned on. Correct venting of a water heating system can guarantee efficient performance and increase the lifespan of your appliance. 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. For such cases, you need to remove the EcoSmart power board housing and change the fuse. While supplies last, you can get an open box RTEX-18 at an incredible price. Moreover, you need to ensure that water pressure of 14 psi (97 kPa) to 40 psi (276 kPa) is maintained. There is an issue with the outlet thermistor. How to Fix: Clean the heat exchanger air inlet. As you can tell, it controls inlet gas pressure. You will find a screw or bolt and a locking nut system in the regulator. Additionally, make sure the proper vent materials were used. Use your Rheemheater manual as a reference when performing any repairs, and make sure to use the technical support number (1-866-720-2076) whenever youre unsure what to do. [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. 2. Corrosion or Scale Deposit On Heat Exchanger. Unthread the cap at the very center of the regulator. Why is Your Water Heater Leaking From Overflow Pipe? Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. That means there is an issue with either combustion air or venting. If you exceed the limit, the water will no longer be heated. The Drip Cap But, if you inspect with extraordinary attention to detail, you may end up saving a considerable, Read More How To Test Water Heater Thermostat? Once you have that cap off youll notice that theres a plastic adjustment inside that increases or decreases the pressure going to that equipment. After that, you can reinstall your heat exchanger. Finally, check the igniter to ensure its functional. Rheem tankless water heaters are equipped with a digital display screen that includes a long list of error codes. To check the blower motor, first, locate it from behind the printed circuit board (PCB) inside of the heater, indicated in the below picture. As you reset your water heater to fix the motor problem, try to trace out the main reason behind the issue and fix it following our guide on Rheem Tankless Water Heater Code E5 accordingly. The cookie is used to store the user consent for the cookies in the category "Analytics". Rheem water heaters may function if the E5 error code is not severe. Its recommended that you refrain from using the water heater until the issue with the blinking lights has been resolved. Also, make sure that there are no plumbing or technical problems such as crossovers. Replace the non-operation fan motor. Youll need to contact a professional to fix the bleed issue. How often should a tankless water heater be flushed? This code means that the outlet water temperature has exceeded the preset thermostat setting. As an Amazon Associate, I earn from qualifying purchases. Similarly, bleed over in current installations can create an error. 2. Once a year is good enough. Ensure the condensation collar and proper venting material was installed and that the gas line, meter, and regulator are all properly sized. Perhaps, the pipes are not appropriately attached to the vent thermal. Finally, turn the main water valve back on. It interprets that the heat exchanger has exceeded a temperature of 207 for more than 15 seconds. A heat exchanger with white deposits of Calcium Carbonate can be dissolved chemically. The E5 error code refers to the Pressure Switch which can be caused by a motor problem or the voltage of the power supply is too low. . Basically, if you have a power vent tankless water, it uses a blower or fan to continue the combustion operation. Calcium Carbonate deposits also impede the performance of heat exchangers. They are usually displayed on the screen of the heater unit itself. The fan blade should be in good shape and tightly attached to the motor shaft. They are usually displayed on the screen of the heater unit itself. New to the sub and trying to help my father out. As An Amazon Affiliate We Earn From Qualifying Purchases But This Does Not Affect Price Of Product. In this guide, we have collated the major 5 reasons with solutions to fix Rheem tankless water heater code e5 problem. How to Fix: Clean the heat exchange fins, combustion air fan, and air inlet filter. Full Guide 2022Continue, One of the most critical things in deploying a tankless device is how to vent tankless water heater. Follow the below step-by-step guide to fix the combustion issue from your water heater: Whenever you encounter a combustion problem in your tankless water heater, making the air filter blockage free is a must to fix the issue. Never assume that contractors know all water heater location codes for your locality. 2.1K views 1 year ago When you witness a problem with your Rheem tankless water heater, be sure to relate to the companion over. In most cases, you need to get a replacement for old faucets. The motor will still work in case of any restriction. Look for any loose or damaged connections on the motor wiring harness. Flame failure during operation. Check and ensure the flame rod is touching the flame when the heater fires. Error E5 codes may be the result of a malfunctioning combustion alarm. Now have a fan running in there to help dry out. How to Fix: Press the max button, then the min button to reset the switch. 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. Numerous reasons could cause this code to appear. When there is too much water pressure, it will not let the water absorb heat. In comparison, electric heaters can heat up to 2 gallons per minute flow rate. Remove the flame rod and clean off any carbon buildup with sandpaper. You can order the specific blown-out fuse from amazon. In this article, we will look at the main Rheem error codes, what they mean, and how you can address them. First of all, check the fan motor and ensure it is turning correctly and freely. When you have a problem in your. The process is quite simple, and you just need a water pressure gauge. The connection to the thermistor is incorrect. Now, examine the flame rod to ensure it is operating as it should. Once you have an error code, take a look at our list to find out what the problem is. Yes, your water heater will occasionally produce cold water in addition to the hot water it normally produces. I have a new Rheem RTEX-24 on the 2nd floor replacing a typical tank-style heater installed by licenced plumbers I have used before with no issue. Ultimately, eliminate any air from gas lines and then inspect the gas solenoid valves for short circuits. Now take an in-depth look at the step-by-step guide to fix the Rheem tankless water heater code E5 in a shorter time. Then, clear any blockages from the vent terminal and ensure airflow is not restricted around the heater. We earn a commission if you purchase at no additional cost to you. Over time, tankless water heaters may collect deposits and minerals build-up, which can erode the walls inside your containers heating chamber. 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. [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). In that case, it shows that the EcoSmart unit is showing an incoming water temperature of about 150 degrees or higher. This allows the flame to breathe and the heater to not overheat. How To Reset Rheem Tankless Water Heater? A tankless water heater can acquire mineral buildup over time, which can damage the walls inside the heating chamber of your tank. 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. We have covered you. Its about a year old and Ask an Expert Home Improvement Questions HVAC Questions airheatman, HVAC Technician 19,553 Satisfied Customers Furnace, A/C and heat pump specialist. Gas-powered heaters have an average flow rate of five gallons per minute. Clean the burner assembly. Lets explore the reasons why you keep getting error E5. Before starting the cleaning, make sure you have turned off your water heater and disconnected it from the power connection. Clean the ventilators if already in the room in case they are dirty. One common problem with Rheem tankless water heaters is not getting any hot water while showering. That means a bad motor is interrupting the combustion system, leading to the error E5. 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. Not yet. However, with so many different error codes, you might have no idea what each code means.