That means the water volume of the system is exceeding the recommended rate and thats the reason the heater is failing to reach the desired preset temperature. William is the founder of Fireplacehubs.com. And your hot water may turn into cold water after a few minutes because of a broken dip tube in your hot water heater that allows mixing cold water with hot water at the top of the tank. In some instances, your EcoSmart tankless water heater will display an error code. Lack of combustion air is one of the most frequent reasons for throwing the error E5 on the control panel. Rheem tankless water heaters are equipped with a digital display screen that includes a long list of error codes. How To Fix Error Code P1 On Rheem Tankless Water Heater [7 Easy Solutions] 1. It is highly recommended to contact a professional rather than fixing it by yourself. It specifies that a false flame has been sensed. Accidentally crossing the hot and cold water lines can easily cause this fault. Once done, rinse the loose debris under the running water. Peter has been a homeowner for 35+ years and has always done his own repair and improvement tasks. Our whole-home gas and electric models are great for homes with busy families, homes with luxury bathrooms and vacation homes, while our point-of-use electric models are ideal for a single faucet or shower. Are you ready to learn? In that case, you may want to reset the heater instead. Using this chart may help you diagnose and/or fix a problem you may be experiencing. 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. What Happens If I Ignore the Error Code E5 in a Rheem Tankless Water Heater? And lets not forget the annoying beeping sounds from a faulty combustion alarm. Check and ensure that the tankless devices cold water inlet pipe and the inlet valve are fully open. That includes: In this troubleshooting stage, you need to visually inspect the venting systems of the water heater and check the condition. Through the air filter, combustible air is fed to the heater. Before starting the cleaning, make sure you have turned off your water heater and disconnected it from the power connection. 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. Then, remove the flame rod and clear off carbon accumulation using the sandpaper. Error Code 10 What it Means: A false flame has been detected. COPYRIGHT 2023. Excess Water Flow 2. Replace the gas control valve, if necessary. The only way to get the water hot was to turn the ball valve down but then the pressure was too low. Tankless Electric Enjoy the comfort and convenience of continuous hot water on demand with a Rheem tankless water heater. We have covered you. 5 Best Water Heater Blankets (2023 Reviews), The Best Portable Tankless Water Heaters (On-The-Go Hot Water), The Best Condensing Water Heaters (Go Environment-Friendly), 5 Best Hot Water Recirculation Pumps (2023 Reviews), Best Tankless Water Heater Flush Kits of 2023. Lets explore the reasons why you keep getting error E5. A false flame being detected may also necessitate a service call, yet there are certain steps to take first. Moreover, you need to ensure that water pressure of 14 psi (97 kPa) to 40 psi (276 kPa) is maintained. 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. 3. A higher than standard flow rate will not heat water. Step 2: Now, disconnect the access panel of your heater and unscrew the wires to the heating elements. Complete Guide 2022, How To Determine The Age Of A Water Heater? But this solution is not recommended if the heat exchanger of your Rheem tankless water heater is made of stainless steel. For instance, for you to reach a specific desired temperature, you will be required to mix the hot water with some cold water. Clean the ventilators if already in the room in case they are dirty. If there is a lengthy distance between the shower and the heater, then you will experience a minute of cold water followed by one minute of hot water. Yes, your water heater will occasionally produce cold water in addition to the hot water it normally produces. One instance where these resetting guides may fail is when there is no power supply to the unit. } I initially wanted a much larger one but he talked me into the Rheem 13 KW 2.54 GPM. Then, test the drain line to make sure it is not clogged, and you have removed the shipping cap as well. 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. This code interprets that there is something wrong with the air intake filter switch. This allows the flame to breathe and the heater to not overheat. Examine the gas control valve wiring harness for any loose or damaged terminals and Ohm it out after consulting the users manual. First off, locate and turn the water valve to the off position. There is a red reset button, located on the upper thermostat of the tankless water heater. After that, you can reinstall your heat exchanger. Replace the flame rod and make sure it is touching the flame when the unit fires, and no foreign objects are blocking the path. Condensation. Then the heat exchanger transfers heat from the burner into the water quickly. As you can tell, it controls inlet gas pressure. For example, this could be due to a power surge or power malfunction. These include: Fortunately, re-lighting your Rheem tankless water heater is easy. Electric is wired to specs using 3 separate, double pole 40 amp breakers, each with an 8/3 wire, to each of the 3 heating elements in the unit, wired by licensed electricians. on: function(evt, cb) { All Right Reserved by FIREPLACEHUBS. 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. Their tankless appliances are packed with several groundbreaking traits that allow meeting an average familys hot water requirements. To solve the issue, flush your tank and check the dip tube and replace it if needed. 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. Read more about how to clean scales from heat exchangers. The exhaust of your heater lets out heat and carbon dioxide from the flame. Dirty Air Filter 4. This is not ideal for a flame. If you want a heater that will last close to two decades, tankless is your best bet. When replacing a heating element, shut off water leading to the water heater. Then close the hot water shut-off valve. Loosen the locknut using a wrench by turning it counter-clockwise. You need to clean the combustion parts and make sure that the igniter is functional. Cold shower not my idea of fun. Incorrect Gas Pressure 3. The EcoSmart tankless water heater is acquitted with 2-4 thermostats. 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. Finally, test the blower motor to find out any obstructions or damaged parts. How to Fix: Make sure theres no damaged or loose connections. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. Turn off the double 240V circuit in the electrical panel for the water heater. Take off the filter and check the air intake line to see if it is dirty. These guides for resetting and troubleshooting your EcoSmart tankless water heater also include temporary or short time fixes. Here, Scalzo, containing Hydrochloric acid is the most effective product for descaling any condensation buildup from the heating element. The shower has a water volume of 1.5 gallons per minute to 3 gallons per minute. How to Fix: Press the max button, then the min button to reset the switch. In comparison, electric heaters can heat up to 2 gallons per minute flow rate. Anyway, there are some major reasons why the unit is not able to vent or combust air properly. 4. If you wish to see the rate of flow that is currently running through your EcoSmart tankless water heater system, follow this step-by-step guide: Whenever the LED control board of your EcoSmart tankless water heater is showing an E5 error code, you will be required to slow down the water volume that is passing through the EcoSmart tankless system. From https://www.justanswer.com/ythi\rJustAnswer Customer from Dunnellon, Florida: we have a rheem electric tankless water heater with E5 code and are not getting hot water\rPearl Wilson: Assistant: How old is your Rheem water heater?\rPearl Wilson: Assistant: Have you checked if its circuit breaker has tripped?\rJustAnswer Customer from Dunnellon, Florida: Its about a year old and breaker is not tripped\rPearl Wilson: Assistant: How long has this been going on with your Rheem water heater?\rPearl Wilson: Assistant: What have you tried so far?\rJustAnswer Customer from Dunnellon, Florida: About 3 days and we have tried everything\rPearl Wilson: Assistant: Is there anything else the HVAC Tech should know before I connect you?\rPearl Wilson: Assistant: Rest assured that they'll be able to help you.\rJustAnswer Customer from Dunnellon, Florida: no\rairheatman: HVAC Technician: This is usually caused by the pressure switch not closing.\rairheatman: HVAC Technician: Is the small vent motor running?\rJustAnswer Customer from Dunnellon, Florida: Where is the small vent motor\rairheatman: HVAC Technician: Give me model on heater .\rJustAnswer Customer from Dunnellon, Florida: RTEX-27\rairheatman: HVAC Technician: This one does not appear to have the little fan so pressure switch is going to be water pressure.\rairheatman: HVAC Technician: Issue may be too high or too low.\rairheatman: HVAC Technician: If water pressure to heater is good, you will need to get an onsite Rheem tech on this one.\rJustAnswer Customer from Dunnellon, Florida: We seem to have good pressure\rairheatman: HVAC Technician: Not finding anything online for service diagnosis in my Rheem manuals very specific in diagnostic steps.\rairheatman: HVAC Technician: Just says pressure switch error .\rairheatman: HVAC Technician: Can be caused by motor or insufficient pressure or power to motor.\rairheatman: HVAC Technician: You probably don't want to mess around too much inside the unit and void warranty.\rPearl Wilson: Assistant: If you have a home improvement or appliance question and want to chat with an expert now visit justanswer.com/ythi The most common codes include Codes 5, 11, 13, and 29. So, it is time to time to clean the venting following the below ways. Note: You can also read how to fix the RV Water heater igniter not clickingproblem. They are usually displayed on the screen of the heater unit itself. It is the most common plumbing valve installed in the water line of your house. Is the digital display or wireless monitoring app showing a specific code, and you cannot interpret it? Then, check and verify the altitude settings are correct and reflect your location. 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. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. In the end, test the igniter to make sure it is fully functional. It is also vital to note that in this CE3 Mode, it will not be possible for you to control the outlet temperature. Contact a professional to clean or replace the heat exchanger effectively. This is an EcoSmart tankless water heater error on the inlet and the outlet thermistor. How to Fix: Check to ensure the heater is properly grounded and that the gas line, meter, and regulator are all properly sized. This code means that the outlet water temperature has exceeded the preset thermostat setting. But to confirm this fact, you have to know the water pressure in your home system. This is an EcoSmart tankless water heater error on the outlet thermistor. How often should a tankless water heater be flushed? In case of obstructions on the vent, you will have to clear it by using a blower. The code should clear on start-up. How to Re-Light Your Rheem Tankless Water Heater. It interprets that there is a problem with the flame sensing device. The shipping cap as well are certain steps to take first heater will occasionally produce water. 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