A Definitive Guide, How To Flush Rinnai Tankless Water Heater? This accumulation is caused by hard water and can become a source of various issues in the future by limiting the inlet and outlet water flow. Open the faucet to drain the remaining water from the heater. We are almost at the endpoint of this article. The consent submitted will only be used for data processing originating from this website. Today, we will break down all Rheem tankless units error codes to help you diagnose the exact solution to the issue you are experiencing with the product. Company's make changes through the years, and Rheem has been in business a long time with a wide range of tankless water heaters . Please select accurately so we can provide you with the best service providers in your immediate vicinity. Is the digital display or wireless monitoring app showing a specific code, and you cannot interpret it? It tells you about the glitch in the overheat wrap. listeners: [], Also, check to ensure theres no scale blocking the heat exchanger. > Make sure the condensation trap is blockage-free and installed properlyCorrosion build-up in the heat exchanger> Clean or replace the corroded heat exchanger.Defective combustion fan motor> Replace the faulty fan motor.Problem with the main burner> Inspect the burner assembly and blow down the dirt using compressed air.> Ensure the burner ribbons are seated properly. However, some models require that you install an app on your phone where you will receive these updates. It is advisable to seek or contact a professional technician to fix the error in such a situation.However, you can fix it yourself if you have knowledge and skills about circuitry and wiring. In most cases, malfunction of the main burner system leads to the error code E5 in the tankless water heater. To check the blower motor, first, locate it from behind the printed circuit board (PCB) inside of the heater, indicated in the below picture. Suppose your EcoSmart tankless water heater LED control board is reading or displaying an E4 Error Code. 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. Why Do Water Heaters Have a Reset Button? (function() { The wiring should not be damaged and also provide the required voltage. Rheem Tankless Electric Water Heaters - Performance Tankless Electric 18kw - RETEX-18 - Rheem Manufacturing Company 18kw Tankless Electric Water Heater with 5 Year Limited Warranty Model # RETEX-18 Home Products Residential Water Heating Tankless Tankless Electric Performance Tankless Electric 18kw Performance Tankless Electric 18kw Here, Scalzo, containing Hydrochloric acid is the most effective product for descaling any condensation buildup from the heating element. If fault re-occurs book service call. A Rheem tankless water heater should last 15 to 20 years, and potentially longer with proper maintenance and a water supply that doesnt contain too many minerals. Use a vacuum cleaner or a damp towel to remove the blockages from both parts. The water flow rate in tankless water heaters must not exceed 12.3 liters, or 3.25 gallons, per minute. How to Fix: Check to ensure the heater is properly grounded and that the gas line, meter, and regulator are all properly sized. Examine the gas control valve wiring harness for any loose or damaged terminals and Ohm it out after consulting the users manual. Thankfully, Rheems water heaters provide an error code when something goes wrong. Therefore, to temporarily troubleshoot or reset the EcoSmart tankless water heater or to bypass the E2 error code, follow these steps; You should note that while your EcoSmart tankless water heater is running or working in the CE2 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 cookie is used to store the user consent for the cookies in the category "Analytics". You can test for bleed by shutting off the cold water supply valve and open a hot water tap. [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). Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. The power supply must have the right voltage, tight connections, and there should be no voltage drops as well. Inadequate gas, a faulty sensor, or dusty combustion parts are responsible for this error. Replace the cap after cleaning it clean with a sponge or soft cloth. So, it is time to time to clean the venting following the below ways. Basically, if you have a power vent tankless water, it uses a blower or fan to continue the combustion operation. The most common codes include Codes 5, 11, 13, and 29. Here's how to do so: 1. It could be that the room your water heater is placed in has no air circulation. } 1 I had a contractor install a Rheem electric tankless water heater in my casita. The air intake tube of your heater can be blocked with debris, spider web, dirt, etc. We have a rheem electric tankless water heater with E5 code and are not getting hot water. Again, read the users manual. In the case of sediment production in the filter, remove the filter and wash it wholly. 5. If you want to resolve an E1 error, follow this step by step guide: If you follow these steps, you are guaranteed to receive hot water from your EcoSmart tankless water heater even as you wait to purchase the replacement part. How to Fix: Check to ensure the air filter door is seated properly and the front panel has been installed correctly. We and our partners use cookies to Store and/or access information on a device. This is because there is a temporary troubleshoot that you can perform. Consult your owners manual to find out exactly where you need to look. Check the vents, exhaust flue, heat exchanger, combustion fan, and inlet filter for blockages. Once done, rinse the loose debris under the running water. If you are confused, see the picture below: Take the air filter out from the filter adapter and clean it using a toothbrush. 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 event : evt, When you see this error code, it becomes necessary to learn how to reset Rheem tankless water heater. How to Fix: Check to make sure theres no damage to the wiring harness or motor and all connections are tight. The flow sensor measures the amount of water entering your system and communicates the data to the control board of your unit. The maximum horizontal and vertical vent lengths should not exceed allowable limits, and the power supply should have proper voltage, no voltage drops, and tight connections. Examine the flame rod to make sure it is joined and free of carbon collection. Rinnai fault code 11 - No ignition. One instance where these resetting guides may fail is when there is no power supply to the unit. Clean the burner assembly. This chart below lists all the Rheem error codes you might come across along with the possible diagnostic problem and its solution. Incorrect Gas Pressure 3. Thus, you will end up with cold or lukewarm water instead of hot water. What does it mean? The EcoSmart tankless water heater is acquitted with 2-4 thermostats. Rheem tankless water heater keeps displaying error code 67 after the city was working on the power. For example, this could be due to a power surge or power malfunction. However, with so many different error codes, you might have no idea what each code means. Then the heat exchanger transfers heat from the burner into the water quickly. In that case, it shows that the EcoSmart unit is showing an incoming water temperature of about 150 degrees or higher. Found this from Google. Rheem Tankless Water Heater Code E5 [7 Easy Fixes], 7. Blocked Air Intake 5. It occurs when the water flow rate is extremely low. There could be another issue with the heating elements. All the thermostats are rated at 140 degrees. In case of obstructions on the vent, you will have to clear it by using a blower. Rheem Error Code E5 Fault Code E5: Evaporator coil temperature sensor T2 open circuit or short circuit Description Need help with your Rheem System? Complete Guide 2022, How To Fix Your Water Heater Leaking From The Top 2022, Water Heater Leaking From The Bottom? Rinnai fault code 10 - Air supply or exhaust blockage. These error codes correspond to a particular problem with your boiler, letting you discover what is wrong without the need for extensive troubleshooting. He has practical skills in fixing smoker & heating appliance issues. In a worst case scenario, you may need to replace either the fan motor or PCB. Why does my tankless water heater go cold sometimes? So stick your flathead screwdriver in to increase the gas pressure, youre gonna go clockwise. Error E5 codes may be the result of a malfunctioning combustion alarm. It will be very hard to run out of hot water if you are using a tankless water heater. ); Remove any remaining dirt using the portable vacuum. 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. This error code informs you about the fault in the combustion air temperature sensor. If the vent is not installed correctly, you should check for its fittings. There is an issue with the inlet thermistor. It is basically a boiling safety warning. It would be wise to take help from a professional to do the work. Tried the reset, even shut down main power for ten minutes. The pressure regulator can be found on the incoming water line, which is normally not far from the water heater. Cookie Duration Description; cookielawinfo-checkbox-analytics: 11 months: This cookie is set by GDPR Cookie Consent plugin. First of all, examine the remote controls wiring and find out the loose or damaged connections. They were up-front about not being familiar with this model but followed the manufacturers installation instructions. Tankless water heaters generally last considerably longer than tank-type heaters, as they dont hold corrosive water for prolonged periods. Replace the gas control valve, if necessary. Nowadays, all heaters use the computer board that tracks the heating process, regulate the parameters, and assist you in troubleshooting the potential malfunctions. Low Water Pressure From The Water Line 6. A small amount of restriction will still allow it to function freely. It must have the proper gas volume and pressure. Wait! Over time, tankless water heaters may collect deposits and minerals build-up, which can erode the walls inside your containers heating chamber. Keep reading to discover more information. Also, flush the heater to eliminate scale blocking inside the heat exchanger. While you could continue to reset it every time, the best solution is to either replace it with a larger water heater or install a second one. However, the water will not reach the desired temperature. 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. But this solution is not recommended if the heat exchanger of your Rheem tankless water heater is made of stainless steel. Then use a towel to dry off the filter. My 3 1/2 year old was playing with the water hose near the fresh air intake of the water heater and some water went in. Once you have an error code, take a look at our list to find out what the problem is. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! If you get the error code E5 and lukewarm water. Watching the video will be helpful for you in the cleaning process. 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. Examine the heat exchanger for obstacles or scale build-up. 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. Check the gas solenoid for valves for short circuits and the igniter wiring harness for signs of damage. The air intake tube and exhaust vent might beblocked with debris, spider web, dirt, etc., resulting in a lack of combustible air and incomplete combustion. As always, your best resource is your owners manual since it'll have the specific information you need for your model. 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. There is an issue with the outlet thermistor. Why do tankless water heaters burst? Rheem water heaters use combustion alarms to warn users when the units temperature is too high. At 40 psi water flow will be maximum. Open the hot water faucet. How to troubleshoot Rheem tankless electric hot water heater E5 code? Rheem Tankless Water Heater Code E5 [7 Easy Fixes] 1. The shower has a water volume of 1.5 gallons per minute to 3 gallons per minute. After that, you should replace the front panel and then restart the heater. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. It shows that the tankless heater is not communicating appropriately with the remote control. Clogged Aerators 2. When your water heater finds a problem, it displays an error code in the LED display on the remote control or the front panel. You may want to call a specialist to grab information about how to reset Rheem hot water heater; there are a few things you can do first: When your system displays this error code, it means the ignition has failed. How to Fix: There is likely an issue with the flame rod. airheatman is online now Related HVAC Questions If you notice it is low, you may have to clean it. window.mc4wp = window.mc4wp || { However, the number of thermostats depends on the model of your EcoSmart tankless water heater. First of all, check the fan motor and ensure it is turning correctly and freely. For instance, if your EcoSmart tankless water heater unit displays this E3 error code, the EcoSmart inlet thermistor is not reading the proper temperature. It is also vital to note that in this CE2 Mode, it will not be possible for you to control the outlet temperature. If nothing works correctly, the only thing you can do is to test the flow sensor. Corrosion or Scale Deposit On Heat Exchanger FAQs: What are the most common problems with tankless water heaters? Finally, check the igniter to ensure its functional. This should clear the 5 code. The only thing left would be the unit is not getting enough water, or the pump is not pushing the water through fast enough for the demand. 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. Minute to 3 gallons per minute to 3 gallons per minute to 3 per! Incoming water line, which is normally not far from the burner into water! End up with cold or lukewarm water showing a specific code, there... 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