That said, we've had some returns and while it's not good for us, it's great for you. [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. E2 error code - an error on the outlet thermistor. 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. To do this, I recommend that you install a flow restrictor. Open the faucet to drain the remaining water from the heater. Is the digital display or wireless monitoring app showing a specific code, and you cannot interpret it? Adjusting a water pressure regulator is an effective solution for tankless water heater flow adjustment if it goes too high. At 40 psi water flow will be maximum. The motor will still work in case of any restriction. E5 error code - an error due to high flow rate. If the error code E5 is flashing in the display, it tells you that the water flow rate is too high in the system. These guides for resetting and troubleshooting your EcoSmart tankless water heater also include temporary or short time fixes. Inadequate gas, a faulty sensor, or dusty combustion parts are responsible for this error. Now, deploy it back by following the installation instructions. How to Fix: Locate and clean up any blockages in the combustion fan, exhaust flue, heat exchanger, and inlet filter. If you see spare parts as loose, connect them to make them sit firmly. Inspect all the valves are open, and the heater is receiving the required type and pressure of the gas. Before you touch or open any electrical components, make sure the power is off. Locate the reset button on your Rheem tankless water heater. Slowing down the water flow rate will be enough to resolve the issue. So, it is time to time to clean the venting following the below ways. The wiring should not be damaged and also provide the required voltage. 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. All Right Reserved by HeaterFixLab. One common problem with Rheem tankless water heaters is not getting any hot water while showering. Peter has been a homeowner for 35+ years and has always done his own repair and improvement tasks. With dust blocking the heater, there will be a lack of necessary airflow resulting in incomplete combustion. Ohm out the sensor and replace it if needed. Your heater has a piece of equipment called a gas pressure regulator. The red flashing light on Rheem tankless water heaters means that the heater has reached a lockout status and requires immediate repair. First of all, flush the heat exchanger by consulting the users manual provided by the manufacturer. 3. In this instance, follow the below instructions: Rheem tankless water heater Error code 11 is the error indication of the ignition failure. It shows that the tankless heater is not communicating appropriately with the remote control. Their tankless appliances are packed with several groundbreaking traits that allow meeting an average familys hot water requirements. Then, adjust the altitude settings. A too-high temperature in the combustion chamber can increase pressure and cause heaters to explode. airheatman is online now Related HVAC Questions As An Amazon Affiliate We Earn From Qualifying Purchases But This Does Not Affect Price Of Product. Now, check the fan motor for any water damage that may have happened due to condensation. The EcoSmart tankless water heater is not rated or designed to heat at temperatures over 140 degrees. COPYRIGHT 2023. As a retired plumber, Peter now spends his time teaching others how they can fix leaks, replace faucets, and make home improvements on a budget. What Happens If I Ignore the Error Code E5 in a Rheem Tankless Water Heater? Full Guide 2022Continue, One of the most critical things in deploying a tankless device is how to vent tankless water heater. How to Fix: Check to ensure all vent and heat exchange components are clean and properly connected. But if you have a gas water heater, you may be getting the E5 code because of this. The Rheem tankless water heater is a piece of excellent equipment to have at home or in the workplace. For instance, for you to reach a specific desired temperature, you will be required to mix the hot water with some cold water. How to Fix: Clean the heat exchange fins, combustion air fan, and air inlet filter. Once a year is good enough. 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. The reset button can be found on most Rheem water heaters either immediately on top of the limit switch, which is positioned next to the thermostat, or it can be found nearby. 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. Rheem tankless water heater keeps displaying error code 67 after the city was working on the power. Then, test the drain line to make sure it is not clogged, and you have removed the shipping cap as well. However, your heater may also be big enough to take that load as well. 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. Ensure the gas type and pressure are correct and its reaching the heater. You need to clean the combustion parts and make sure that the igniter is functional. In this article, we will look at the main Rheem error codes, what they mean, and how you can address them. When you see this error code, it becomes necessary to learn how to reset Rheem tankless water heater. In that case, it shows that the EcoSmart unit is showing an incoming water temperature of about 150 degrees or higher. We and our partners use cookies to Store and/or access information on a device. For an electric tankless heater, this shouldnt be much of an issue. 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 Now, remove all the blockages from the vents and where it ends outside. 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. That means there is an issue with either combustion air or venting. Has your Rheem tankless water heater suddenly stopped working? You will get an error code E5 if the valve to the pilot or main burner is not open. Rheem water heaters may function if the E5 error code is not severe. 4. Through our guide, expectantly, you have solved this problem very easily. 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? A false flame being detected may also necessitate a service call, yet there are certain steps to take first. 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. 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. I've been conducting professional home inspections since 2002. Clean the burner assembly. Then open a hot valve in the home, and purge out all air when you turn the water back on. In both cases, the heater will still work. Open the hot water faucet. First of all, examine the remote controls wiring and find out the loose or damaged connections. Although these explosions are rare, a combustion alarm notifies you of the impending danger. While supplies last, you can get an open box RTEX-18 at an incredible price. 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. A tankless water heater can acquire mineral buildup over time, which can damage the walls inside the heating chamber of your tank. When you shop through links on our site, we may earn an affiliate commission. The consent submitted will only be used for data processing originating from this website. Rheem water heater error codes are short and simple. > Clean or replace the corroded heat exchanger. In a worst case scenario, you may need to replace either the fan motor or PCB. The horizontal and vertical vent lengths must not surpass the suggested limits. A faulty flow meter sensor and poor or broken wiring connection to the sensor are responsible for triggering the error code E4. For example, you will notice an E with a digit next to it. How to Fix: Check to ensure the heater is properly grounded and that the gas line, meter, and regulator are all properly sized. Rheem water heater error codes are short and simple. Rheem generally offers 1-year limited warranty on its products. How to Fix: Clean any scale from the sensor and check it for damage. event : evt, The fan motor should turn with minimal resistance. This is usually located near the control panel. See if proper venting materials and condensation collar was deployed. Flame failure during operation. 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. The bathtub has a water volume of 3.5 gallons per minute to 8 gallons per minute. The Drip Cap Before starting the cleaning, make sure you have disconnected the unit from the power connection and turned off the gas supply. We have covered you. Examine the thermistor wiring for any kind of damage and clean and Ohm the thermistor. 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. It was pitched to the exterior that ended in a vertical 90 out a wall. Replace the cap after cleaning it clean with a sponge or soft cloth. Should you just call up a local plumber and get it over with? You have to remove a small metal panel that holds the thermostat, and then access the reset button under the insulation. These error codes correspond to a particular problem with your boiler, letting you discover what is wrong without the need for extensive troubleshooting. 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