After cleaning, ensure a proper installation of the venting system. But there are a few more factors that need your attention. This is usually located near the control panel. 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. However, your heater may also be big enough to take that load as well. . Before beginning the main discussion, lets glance at the below table, highlighting all the probable reasons with instance solutions:Probable ReasonsPossible SolutionsToo much water pressure> Adjust the water pressure regulator of the main water line.Malfunction in the combustion system> Clean the air intake filter.> Inspect the air intake vent and exhaust outlet for clogs. Before starting the cleaning, make sure you have disconnected the unit from the power connection and turned off the gas supply. At 40 psi water flow will be maximum. What to do. Waterheateradvisors.Com 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. Again, read the users manual. Once you are done, regulate the temperature or flow rate of the machine. This article will find symptoms, causes, and steps on how to reset Rheem tankless water heater. Ignition failure at start up. Also, check the thermistor for any limescale build-up and clean it if required. Rheem Electric Tankless Water Heater Error Code E5 The water heater will trigger the error code E5 if there is too much water flow. One common problem with Rheem tankless water heaters is not getting any hot water while showering. This educational content is not intended to be a substitute for professional advice. In this guide, we have collated the major 5 reasons with solutions to fix Rheem tankless water heater code e5 problem. The EcoSmart tankless water heater needs 208 volts or higher to run correctly. 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. Well, if cleaning doesnt work, replace the air filter. Watching the video will be helpful for you in the cleaning process. 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. WaterHeater HUB 2021 - All Rights Reserved. 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. 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. We and our partners use cookies to Store and/or access information on a device. A small amount of restriction will still allow it to function freely. They are usually displayed on the screen of the heater unit itself. Ensure that the airflow is not restricted to the unit, and the vent terminal is also not clogged. These include: Fortunately, re-lighting your Rheem tankless water heater is easy. This is an EcoSmart tankless water heater error on the outlet thermistor. Comprehensive Guide 2021, An Exhaustive Guide On Water Heater Installation Code Requirements, How To Turn On Water Heater? So now we will start troubleshooting by slowing down the water flow in the system. Once a year is good enough. As such, although you will fix this error, you must look for a new inlet thermistor and make a permanent resolution. William is the founder of Fireplacehubs.com. To solve the issue, flush your tank and check the dip tube and replace it if needed. Low Water Pressure From The Water Line 6. Besides, the temperature cant able to reach the set temperature. Thats the reason the LED control board will show an E5 error code. Now come to the condensate trap and look for any degradation. Also, make sure that there are no plumbing or technical problems such as crossovers. It is also vital to note that in this CE3 Mode, it will not be possible for you to control the outlet temperature. Bleed any air from the gas lines. Moreover, you need to ensure that water pressure of 14 psi (97 kPa) to 40 psi (276 kPa) is maintained. In case you have more queries about your Rheem heater, you can leave us a comment below. After the reset button has been pressed and held for the required time, the water heater should restart. Is the digital display or wireless monitoring app showing a specific code, and you cannot interpret it? 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. Once you have done all the above attempts and fixed the error code E5 issue, it is time to clear out the error code. Continue reading our following comprehensive guide to getting rid of the error code ASAP. 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. Error E5 codes may be the result of a malfunctioning combustion alarm. Examine the heat exchanger for cracks or other openings, as well as air flow restrictions around the vent terminal and unit. Why is Your Water Heater Leaking From Overflow Pipe? First of all, clean the air inlet screen and fins on the heat exchanger. As you can tell, it controls inlet gas pressure. But with a blocked exhaust, this system is jeopardized. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. Comprehensive Guide 2021Continue, Whether you plan to deploy the tankless water heater yourself or employ a specialist, you need to grab information about the water heater installation code requirements before doing anything. The E5 error code on a Rheem Tankless Water Heater signifies the excessive water flow rate. They were up-front about not being familiar with this model but followed the manufacturers installation instructions. Follow the below instruction to adjust the regulator: According to Rheem tankless water heater, the error code E5 will pop up when there is a malfunction in the combustion system. For instance, for you to reach a specific desired temperature, you will be required to mix the hot water with some cold water. 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. 3. Go two turns and check to see if the flame is strong enough. If there is any foreign material in the exhaust pipe or combustion chamber, remove it. More about us. COPYRIGHT 2023. How to Fix: Examine the modulating gas solenoid valve wiring harness for any loose or damaged terminals and Ohm out the valve. It will be very hard to run out of hot water if you are using a tankless water heater. To fix the burner problem, you have to inspect the burner assembly and check for blockages in the burners. 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. My rheeem is 4 months old only one chamber works its a rtex-18 why? Tighten the locknut and move the adjustment screw counterclockwise to reduce pressure and water flow. How often should a tankless water heater be flushed? You should always fix E5 errors, irrespective of the reasons behind the E5 error. It shows that the tankless heater is not communicating appropriately with the remote control. Once the EcoSmart tankless water heater gets the correct amount of incoming power, your EcoSmart system LED will display the selected temperature. 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. It may look like a technical piece, Read More How To Turn On Water Heater? In case of obstructions on the vent, you will have to clear it by using a blower. Ensure the gas type and pressure are correct and its reaching the heater. Even the largest tankless unit could struggle in a high-demand household (1). If you want a heater that will last close to two decades, tankless is your best bet. In comparison, electric heaters can heat up to 2 gallons per minute flow rate. There is a red reset button, located on the upper thermostat of the tankless water heater. Through the air filter, combustible air is fed to the heater. In a tankless water heater, water temperature is increased in one of two ways: increasing the amount of gas being burned or decreasing the water flow. In most cases, you need to get a replacement for old faucets. In a worst case scenario, you may need to replace either the fan motor or PCB. Rheem water heater error codes are short and simple. Finally, you have to inspect the fan blade to make sure it is attached firmly to the motor shaft and spins freely. This allows the flame to breathe and the heater to not overheat. Probably not. One instance where these resetting guides may fail is when there is no power supply to the unit. Contact Rheem for additional service if the error code is "13," "1L" or the previous error code does not clear even after corrective actions. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. You will have to examine the thermistor wiring to ensure there is no damage. If you cant find a screen displaying the error code, consult a professional. Replace the gas control valve, if necessary. 1 I had a contractor install a Rheem electric tankless water heater in my casita. Rheem tankless water heaters are equipped with a digital display screen that includes a long list of error codes. [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). Reset your Rheem tankless water heater unit will assist you in clearing the error code from the control panel. The heat exchanger is a power device of the heater that transfers fromone source to another. Not overheat heater unit will assist you in the burners thermistor and make a permanent resolution find symptoms,,! Errors, irrespective of the heater that transfers fromone source to another and simple cleaning! The venting system burner assembly and check the thermistor wiring to ensure there is foreign! Disconnected the unit, and the heater a worst case scenario, you must look for any.! This educational content is not intended to be a substitute for professional help after the reset button has been and... 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