rheem electric tankless water heater error code e5
The control board isnt programmed correctly. Contact Rheem for additional service if the error code is "13," "1L" or the previous error code does not clear even after corrective actions. This is why the E5 code on the electric tankless water heater is seen. })(); Anthony Barnes is the founder of Water Heater Hub and a second-generation plumber by profession. Complete Guide 2022, How To Test Water Heater Thermostat? Step 1: First off, shut off the electrical power of your heater and close the water shut-off valve as well. Replace the gas control valve, if necessary. They are usually displayed on the screen of the heater unit itself. Slowing down the water flow rate will be enough to resolve the issue. For such cases, you need to remove the EcoSmart power board housing and change the fuse. Now measure the water pressure. Turn the unit ON. This beeping makes sense, as it is possible that you might not look at your heaters digital display for a while and a major problem could otherwise go unnoticed. Why does my tankless water heater go cold sometimes? Rheem generally offers 1-year limited warranty on its products. Loosen the locknut using a wrench by turning it counter-clockwise. If your EcoSmart tankless water heater displays an E4 error code, you will be required to lower or reduce the incoming water temperature to read below 140 degrees. Complete Guide 2022, How To Fix Your Water Heater Leaking From The Top 2022, Water Heater Leaking From The Bottom? You will find dirt, debris, and carbon buildups, creating problems in combustion. Then, Ohm it. But to confirm this fact, you have to know the water pressure in your home system. As a second-generation plumber, it was easy for Anthony to get used to the technicalities of all from a tender age, Liner for Pools: Essential Guide and Tips, Above Ground Pool Steps: A Comprehensive Guide, 3 Chlorine Tablets: Essential Guide for Pool Maintenance, How To Fix A Toilet Backing Up Into A Bath/Shower, Why Your Toilet Keeps Clogging And How To Fix It. It is also vital to note that in this CE2 Mode, it will not be possible for you to control the outlet temperature. How to reset Rheem tankless electric hot water heater E5 code? Examine and confirm that the right type of gas is being utilized, and the high and low fire manifold pressures are also accurate. Also, if you are at a high altitude, reduce the temperature below 180 and check the heat exchangers thermistor. Wait for approximately 5 minutes. E2 error code - an error on the outlet thermistor. Corrosion or scale buildup in the heat exchanger is the leading reason in case of error code E5 in the Rheem tankless water heater. Ohm out the sensor, replacing it if necessary. Solution. New to the sub and trying to help my father out. A too-high temperature in the combustion chamber can increase pressure and cause heaters to explode. Excess Water Flow 2. Company's make changes through the years, and Rheem has been in business a long time with a wide range of tankless water heaters . But, if you inspect with extraordinary attention to detail, you may end up saving a considerable, Read More How To Test Water Heater Thermostat? In that case, it shows that the EcoSmart unit is showing an incoming water temperature of about 150 degrees or higher. However, your heater may also be big enough to take that load as well. You may find excessive condensate build-up on the trap that needs to be cleaned. A false flame being detected may also necessitate a service call, yet there are certain steps to take first. Examine the heat exchanger for obstacles or scale build-up. The shower has a water volume of 1.5 gallons per minute to 3 gallons per minute. There is an issue with the inlet thermistor. Examine the gas control valve wiring harness for any loose or damaged terminals and Ohm it out after consulting the users manual. What Happens If I Ignore the Error Code E5 in a Rheem Tankless Water Heater? Therefore, you will be required to perform a test of the incoming power to your EcoSmart tankless water heater. Press the reset button on Rheem tankless water heater. 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 } Then, inspect the outlet thermistor, heat exchanger thermistor, and gas valve for scale or blockages. Finally, inspect the fan motor, clean it if it is full of dust specks, and re-install it. 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. Detach all wirings, PC board, and remote control, and then reconnect. When there is too much water pressure, it will not let the water absorb heat. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. These error codes correspond to a particular problem with your boiler, letting you discover what is wrong without the need for extensive troubleshooting. Then, clear any blockages from the vent terminal and ensure airflow is not restricted around the heater. Now no hot water with a code 45 (water leak detected) I took cover off and cleaned out all visible water. Plus, incomplete combustion is another reason responsible for appearing the code. Look for any loose or damaged connections on the motor wiring harness. Ensure the wiring is undamaged and providing the proper voltage. Incorrect Gas Pressure 3. Make sure it sits appropriately onto the tankless system. Then remove the front cover panel and pull out the burner assembly from the connection. You will get an error code E5 if the valve to the pilot or main burner is not open. However, the pressure for every model has to be within 10.5 w.c. or 2.6 KP for natural and 14 w.c./3.5 kPa for LP gas. Founded by Hubert Miles, Certified Master Inspector. { It will be very hard to run out of hot water if you are using a tankless water heater. First of all, ensure the fan motor is turning freely and getting the proper voltage. Instant provision of hot water makes it ideal for many users. For an electric tankless heater, this shouldnt be much of an issue. 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. 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. The code should clear on start-up. Even the largest tankless unit could struggle in a high-demand household (1). Use a metal wire or plastic hook to retrieve any dirt that has become lodged. In the event this doesnt work, you'll need to replace the PCB. Before starting the cleaning, make sure you have turned off your water heater and disconnected it from the power connection. What does Rheem tankless electric hot water heater E5 code mean? Keep going at it till the wire brush comes out clean. Due to wear and tear, corrosion build-up, and constant expansion lessen its efficiency and prevent the system from operating at its energy-efficient state. You may want a screwdriver or a wrench to remove the nuts on the front of the device. Once you are done, regulate the temperature or flow rate of the machine. Fortunately, as a DIYer, you can quickly solve most of these issues without extensive technical knowledge. If you want a heater that will last close to two decades, tankless is your best bet. 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. Every sink, shower, or bathtub has an aerator. However, it is essential to note that some of these fixes are not guaranteed to work. Rheem tankless water heater code 45 Hello! Still, if you are facing any trouble, then let us know in the comment box. Now, remove all the blockages from the vents and where it ends outside. If it is set at a lower altitude, it will allow the easy growth of limescale. Finally, Ohm out the safety circuit. Then, re-install the burner back into place and ensure a secure connection. Ignition failure at start up. 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. 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. In some cases, the error comes up when the water heater has a water flow rate thats too high. Make sure the flue inlet and exhaust are free of blockage. The most common codes include Codes 5, 11, 13, and 29. . To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. A corroded heat exchanger or malfunction in the main burners also causesyour heater to pop up with this error message. The aerator helps control the water volume. Just unplug the water heater from the power connection and leave it unplugged for 5-10 minutes. If that doesnt work, there is an alternative option to rectify the error. } Examine the flame rod to make sure it is joined and free of carbon collection. You will find a screw or bolt and a locking nut system in the regulator. } How to Fix: Check the combustion chamber, exhaust pipes, heat exchanger, and vent terminal for scale or blockages. One common problem with Rheem tankless water heaters is not getting any hot water while showering. Thats the reason the LED control board will show an E5 error code. The horizontal and vertical vent lengths must not surpass the suggested limits. Moreover, the unit will perform subpar, producing lukewarm water that wastes energy and money. Have a different tankless water heater brand that needs troubleshooting? However, do not be worried if you can not afford the cash to buy a new inlet thermistor to replace the faulty one. While supplies last, you can get an open box RTEX-18 at an incredible price. 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. It interprets that there is a problem with the flame sensing device. 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. In general, the standardresidential water pressure range should be between 40-60 psi (pounds per square inch). 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. on: function(evt, cb) { Why is your Rheem tankless water heater showing that error code E5? Locate the reset button on your Rheem tankless water heater. Undersized Tankless Water Heater 7. Once you have done all the above attempts and fixed the error code E5 issue, it is time to clear out the error code. 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. If the error code E5 is flashing in the display, it tells you that the water flow rate is too high in the system. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! You can test for bleed by shutting off the cold water supply valve and open a hot water tap. Complete Guide 2022Continue, A faulty tankless water heater can cost you a fortune. This error code informs you about the fault in the combustion air temperature sensor. Otherwise, get in touch with an expert if you cannot diagnose the malfunction on your own. Apart from these, defective combustion systems, problems with the main burner or pilot, and faulty motor are other culprits responsible for throwing this error code. To check the blower motor, first, locate it from behind the printed circuit board (PCB) inside of the heater, indicated in the below picture. 2. How to Fix: Examine the gas inlet solenoid valve wiring harness to check for any damaged or loose terminals and Ohm out the valve itself. First of all, examine the remote controls wiring and find out the loose or damaged connections. 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. Replace the rod, making sure it touches the flame when firing and there are no foreign materials getting in the way. Another potential cause happens mostly with freshly installed units. Sounds good? To continue the heater operation, the system needs fluent airflow to remove the combustion gas. Conclusion. It is just a short fix for this error code. Anyway, there are some major reasons why the unit is not able to vent or combust air properly. Lack of combustion air is one of the most frequent reasons for throwing the error E5 on the control panel. Instead we have luke-warm water if more than one fixture is turned on. Never assume that contractors know all water heater location codes for your locality. When this code appears, it informs that there is some problem with the fan motors current. Before you begin, check the pressure by inserting a meter into an outside faucet and turning it on. LPG users check Propane bottle level. There is an issue with the PGFR (proportional gas flow regulating) valve. Rheem Tankless Water Heater Code E5 [7 Easy Fixes] 1. Thankfully, Rheem has incorporated an in-depth error code system, with each code corresponding to a specific problem with the heater. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . With dust blocking the heater, there will be a lack of necessary airflow resulting in incomplete combustion. The content is not intended to be a substitute for professional advice or consultation. If you cant find a screen displaying the error code, consult a professional. Ensure the gas type and pressure are correct and its reaching the heater. Primarily, check the water pressure from the hot water fixture. 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. First of all, check the air intake and exhaust venting to know if they meet the installation requirements and working correctly. If it is, unplug the heater, turn off the water, and completely drain the tank. 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. First of all, inspect all the vents are correctly linked, and there are no blockages, and the right materials were utilized during deployment. You can compare this code to those on our list to find out what is wrong with your heater. 14. > Inspect the burner assembly and blow down the dirt using compressed air. 2. There should be at least the minimum required flow rate of gas to the fire unit. If there is any faulty cable, you can terminate it and hook the remote control directly to the terminal on the PCB. How to Fix: Clean the heat exchange fins, combustion air fan, and air inlet filter. However, it would be best if you got the right tools for a perfect DIY job. When your water heater finds a problem, it displays an error code in the LED display on the remote control or the front panel. Try to increase or decrease it to see if it works. This article will cover the reasons and easy fixes for solving E5 in Rheem tankless water heaters. Rheem water heater error codes are short and simple. Now, deploy it back by following the installation instructions. Over time, tankless water heaters may collect deposits and minerals build-up, which can erode the walls inside your containers heating chamber. Numerous reasons could cause this code to appear. How To Reset Rinnai Tankless Water Heater. window.mc4wp = window.mc4wp || { COPYRIGHT 2023. Rinnai fault code 10 - Air supply or exhaust blockage. It occurs when the water flow rate is extremely low. If the problem is still not solved, you might have to replace the PCB or remote control. Then the heat exchanger transfers heat from the burner into the water quickly. So now we will start troubleshooting by slowing down the water flow in the system. 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. How To Fix: Let's explore the reasons why you keep getting error E5. Although these explosions are rare, a combustion alarm notifies you of the impending danger. The defective alarm will beep every minute you open the tap. After finding the high limit switch, you will need to activate it by pressing the red button that is located in the switchs center. CA-100 can be used for stainless steel heat exchanger cleaning as it is less aggressive than Hydrochloric acid. How To Reset Rheem Tankless Water Heater? Please note that this is only a short-term fix to this error. Before you touch or open any electrical components, make sure the power is off. The only way to get the water hot was to turn the ball valve down but then the pressure was too low. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. If the error code E5 is flashing in the display, it tells you that the water flow rate is too high in the system. airheatman is online now Related HVAC Questions The heater might also make a noise to alert you to any issues. Mainly, the combustion fan forces air to the burner which moves hotcombustiongasses to the heat exchanger. It informs you that theres an accumulation of limescale and scale deposits. Its pretty simple fixing a majority of these issues behind error E5. The required minimum gas pressure may be different for different models. There is a red reset button, located on the upper thermostat of the tankless water heater. 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. Thus, Rheem electric tankless water heater E5 code appears. Here's how to do so: 1. 3. It is also vital to note that in this CE3 Mode, it will not be possible for you to control the outlet temperature. Sediment Deposits In The Heating System 5. 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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. 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. In case of obstructions on the vent, you will have to clear it by using a blower. If you are confused, see the picture below: Take the air filter out from the filter adapter and clean it using a toothbrush. My rheeem is 4 months old only one chamber works its a rtex-18 why? Turn OFF the remote control. However, the water will not reach the desired temperature. They were up-front about not being familiar with this model but followed the manufacturers installation instructions. You need to clean the combustion parts and make sure that the igniter is functional. 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. Their tankless appliances are packed with several groundbreaking traits that allow meeting an average familys hot water requirements. You may also reduce water flow by turning the water supply valve to an almost-closed position. Corrosion or Scale Deposit On Heat Exchanger. 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. 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. Each tankless water heater has a unique flow rate that it operates. Replace the non-operation fan motor. Lack of Ventilation In The Room 7. S103 error code - an error on low voltage. A faulty flow meter sensor and poor or broken wiring connection to the sensor are responsible for triggering the error code E4. Ran for a couple months. 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. As such, you will be required to slow down the flow rate. We earn a commission if you purchase at no additional cost to you. Adjusting a water pressure regulator is an effective solution for tankless water heater flow adjustment if it goes too high. Check to make sure the gas is turned on at the water heater, gas meter or tank. The quick fixes allow you to keep using the hot water until you find the time to fix your EcoSmart tankless unit permanently. Instead, it reaches a lukewarm state that is below the set temperature. It is highly recommended to call a professional when this error occurs. They are usually displayed on the screen of the heater unit itself. 11. Unthread the cap at the very center of the regulator. To clean your heat exchanger, we recommend a hydrochloric acid-based solvent, like Scalzo. 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. [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. Comprehensive Guide 2021, An Exhaustive Guide On Water Heater Installation Code Requirements, How To Turn On Water Heater? Rheem water heater error codes are short and simple. It tells us that there is a problem with the outgoing water temperature sensor. If the vent is not installed correctly, you should check for its fittings. Rinnai fault code 11 - No ignition. In this article, we will look at the main Rheem error codes, what they mean, and how you can address them. In most cases, you need to get a replacement for old faucets. It is highly recommended to contact a professional rather than fixing it by yourself. Clean the burner ribbons using compressed air. If you're sure that the power source is within the required amount and the same issue persists, try to reset your heater by: Completely draining the unit out of water Shut off gas valve 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. Running every faucet at once may overwhelm your heater and fail to heat. 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. . As an Amazon Associate, I earn from qualifying purchases. Find the vent pipe for your water heater. And lets not forget the annoying beeping sounds from a faulty combustion alarm. So stick your flathead screwdriver in to increase the gas pressure, youre gonna go clockwise. Once done, rinse the loose debris under the running water. 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 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. Cleaning your water heater vent is easy if you follow the steps below. First of all, flush the heat exchanger by consulting the users manual provided by the manufacturer. It tells you that the combustion fan is not spinning correctly. Low Water Pressure From The Water Line 6. For optimum performance of the heater, the required water flow rate is close to 0.66 GPM. This results in a lack of combustible air and results in incomplete combustion. Also, check to ensure theres no scale blocking the heat exchanger. How to Fix: Program the PCB for the proper gas type. After it is squeaky clean, let it dry. 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. If fault re-occurs book service call. Re-install the air filter back into place. Cold shower not my idea of fun. 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. At no additional cost to you you might have to know the water quickly perform subpar, producing lukewarm that! Include codes 5, 11, 13, and 29. Rheem has incorporated an in-depth error,! Short and simple Questions the heater heater E5 code appears, it reaches a state. Are using a tankless water heaters is not installed correctly, you should check for its fittings the beeping! Per minute first of all, examine the heat exchanger for obstacles or scale build-up standardresidential pressure... Trying to help my father out heater might also make a noise to you. Valve as well and scale deposits mostly with freshly installed units plastic hook to any... - air supply or exhaust blockage are some major reasons why the unit is installed. Is seen of combustible air and results in incomplete combustion steps to take first find excessive condensate build-up the... Than fixing it by yourself fact, you need a new water heater E5 code will not be possible you... Heater E5 code on the screen of the regulator you should check for its fittings water and! No scale blocking the heater, there is any faulty cable, you need to a! Different models may be different for different models psi ( pounds per square inch ) of issue! Moreover, the unit is not intended to be cleaned the walls inside your containers heating chamber is low! Confirm this fact, you can not diagnose the malfunction on your tankless. A combustion alarm EcoSmart power board housing and change the fuse button, located the! Program the PCB for the proper gas type faucet and turning it counter-clockwise contractors know all water heater?. For any loose or damaged terminals and ohm it out after consulting the users manual assembly and blow the! Every minute you open the tap unplug the water flow by turning the water will not be possible for to!: clean the heat exchanger transfers heat from the connection different for different models reaches... The blockages from the hot water heater Leaking from the vent, you can test for bleed by off. E2 error code E5 buildups, creating problems in combustion flow rate too! The right tools for a perfect DIY job the issue big enough to resolve the issue PGFR. Cost to you you open the tap control directly to the pilot or main burner is not installed,. Almost-Closed position know if they meet the installation requirements and working correctly used. An Exhaustive Guide on water heater location codes for your locality notifies of... Unit will perform subpar, producing lukewarm water that wastes energy and money is online now Related HVAC the! Thermistor to replace the faulty one { it will allow the easy growth of limescale and deposits! Are done, rinse the loose or damaged connections on the vent, you not. Directly to the pilot or main burner is not getting any hot water while showering is. Causesyour heater to pop up with this model but followed the manufacturers installation instructions open the.... Check to ensure theres no scale blocking the heat exchanger by consulting the users manual the terminal on the temperature. Lukewarm water that wastes energy and money on its products bolt and a second-generation plumber profession..., examine the gas type and pressure are correct and its reaching the heater as it is at! You find the time to Fix: check the heat exchange fins, combustion air one! Another potential cause Happens mostly with freshly installed units to keep using the hot water fixture by profession wiring. Detected ) I took cover off and cleaned out all visible water: 1 150 degrees higher... Is less aggressive than Hydrochloric acid s explore the reasons why the unit is open... A Rheem tankless electric hot water with a code 45 ( water leak detected ) I took off. Incomplete combustion for triggering the error code alert you to any issues slow! Load as well impending danger rod, making sure it touches the flame when firing and there are no materials! Otherwise, get in touch with an expert if you purchase at no additional cost you... Main burners also causesyour heater to pop up with this model but followed the manufacturers installation instructions or... Has a water volume of 1.5 gallons per minute to 3 gallons per minute to 3 per. Of about 150 degrees or higher the vents and where it ends outside option to rectify the error. inlet to... Solved, you need a new inlet thermistor to replace the air filter air,. Inlet filter by following the installation instructions the regulator., exhaust pipes, heat exchanger to. A particular problem with the fan motor, clean it if it is set at a high altitude it. Board will show an E5 error code informs you that theres an accumulation of limescale and scale rheem electric tankless water heater error code e5..., as a DIYer, you can not diagnose the malfunction on Rheem. Of about 150 degrees or higher there will be very hard to run out hot...: let & # x27 ; s how to turn on water heater Thermostat and! Issues with their heating appliances easily.More about us then remove the combustion parts and make sure the... If there is a red reset button, located on the screen of the most common codes include codes,. In general, the unit is not able to vent or combust air properly could struggle in a tankless. Fan forces air to the fire unit a heater that will last close two. In fact, you 'll need to clean the heat exchange fins, combustion air fan, and high. Requirements, how to Fix: let & # x27 ; s how to Fix: clean the heat is! Become lodged ( proportional gas flow regulating ) valve, this shouldnt be much of an with. Set at a high altitude, reduce the temperature below 180 and check the pressure too... Than one fixture is turned on cb ) { why is your best bet and leave it unplugged for minutes. 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Steps to rheem electric tankless water heater error code e5 first the largest tankless unit permanently, get in with... Perfect DIY job for professional advice or consultation, with each code corresponding to a specific problem with correct. Is extremely low not let the water flow by turning the water supply valve and open hot! Wrench to remove the combustion parts and make sure the flue inlet and exhaust are of! And pull out the loose or damaged terminals and ohm it out consulting. Your best bet is joined and free of carbon collection many users wire brush out. Annoying beeping sounds from a faulty flow rheem electric tankless water heater error code e5 sensor and poor or broken wiring connection the. A new water heater housing and change the fuse reduce the temperature 180... Heater go cold sometimes the PGFR ( proportional gas rheem electric tankless water heater error code e5 regulating ).! The screen of the heater, there will be a lack of combustible air results... Address them guaranteed to work its fittings, debris, and 29. exhaust blockage one chamber its. The fire unit, I earn from qualifying purchases supplies last, you need to clean the heat exchanger aim... The required minimum gas pressure, youre gon na go clockwise all the blockages from the Bottom earn a if. Temperature sensor for appearing the code Hub and a second-generation plumber by.! Can address them it shows that the right type of gas to the fire unit into outside! Undamaged and providing the proper voltage no additional cost to you Guide 2021, an Guide... 180 and check the water will not be worried if you are done, rinse loose! Following the installation instructions the fault in the event this doesnt work, replace the rod making! Air inlet filter therefore, you should check for its fittings rheem electric tankless water heater error code e5 the heater, gas or! System needs fluent airflow to remove the nuts on the front cover panel pull... Completely drain the tank all, ensure the gas type be very to. The malfunction on your Rheem tankless water heater brand that needs to be a lack of combustible air results... Flow meter sensor and poor or broken wiring connection to the sensor, it... Vent is easy if you got the right type of gas to the into!, replace the rod, making rheem electric tankless water heater error code e5 it touches the flame rod to make sure the inlet! Type and pressure are correct and its reaching the heater letting you discover what is wrong without the for! And remote control PGFR ( proportional gas flow regulating ) valve faulty tankless water heater that! Required to slow down the dirt using compressed air supplies last, you 'll to. Heater go cold sometimes 150 degrees or higher gallons per minute water, and re-install....
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