What does it mean? Once you are done, regulate the temperature or flow rate of the machine. This section will walk you through the step-by-step troubleshooting guides for each of the six error codes. Can you run out of hot water with a tankless water heater? Suppose your EcoSmart tankless water heater LED control board is reading or displaying an E4 Error Code. If the gas pressure is inadequate, incomplete combustion will take place resulting in incomplete combustion. Journeyman Plumber qwasert is online now Questions the Experts can answer 1. Also, flush the heater to eliminate scale blocking inside the heat exchanger. Standard EcoSmart tankless water heater error codes include: Get FREE quotes from licensed Plumbers in your area today. Then, we adjust the pressure regulator. William is the founder of Fireplacehubs.com. The heater gets overheated and carbon dioxide snuffs the burner flame causing incomplete combustion. Inspect to ensure the air filter door is placed correctly and the front panel is appropriately deployed. Step 1: First off, shut off the electrical power of your heater and close the water shut-off valve as well. However, the water will not reach the desired temperature. First of all, examine the remote controls wiring and find out the loose or damaged connections. You need to replace your heat exchanger if it is corroded. 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. Also, make sure heat exchanger elements are clean, appropriately attached, and working in the right way. Manage Settings To fix it: Sometimes, youve checked everything up and down, twice, thrice, and again just to be sure, but theres just nothing wrong. You can temporarily bypass a faulty cable, hooking the remote control directly to the terminal on the PCB until you can replace it. What to do. There are shut-off valves by the unit, and multiple ones in the basement specifically for this unit as well as each room with a water supply. Make sure there are no restrictions to the air flow. Finally, Ohm out the safety circuit. When the unit was installed the water was luke warm at best. A heat exchanger with white deposits of Calcium Carbonate can be dissolved chemically. Once you have an error code, take a look at our list to find out what the problem is. If the error code E5 is flashing in the display, it tells you that the water flow rate is too high in the system. Wait for approximately 5 minutes. Check the ventilation system and vent openings for blockages or dirt and clean as needed. It interprets that there is a problem with the flame sensing device. Steady flow is a clear sign of bleed over. After finding the high limit switch, you will need to activate it by pressing the red button that is located in the switchs center. Keep reading our Rheem tankless water heater troubleshooting manual to get rid of the error code ASAP. Instead, it reaches a lukewarm state that is below the set temperature. 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: Locate and clean up any blockages in the combustion fan, exhaust flue, heat exchanger, and inlet filter. Error Code 05 What it Means: Imperfect Combustion - The system is dirty or blocked. Resolving EcoSmart Water Heater Error Codes, Other Troubleshooting Tankless Water Heater Error Code Guides, Troubleshooting Tankless Water Heater Error Codes, Troubleshooting Tankless Water Heater Error Codes: Rinnai, Troubleshooting Tankless Water Heater Error Codes: Rheem, Troubleshooting Tankless Water Heater Error Codes: Navien, Troubleshooting Tankless Water Heater Error Codes: Noritz, Troubleshooting Titan Tankless Water Heater Problems, Troubleshooting EcoSmart Tankless Water Heater Error Codes, Troubleshooting Tankless Water Heater Error Codes: Bosch. Another potential cause happens mostly with freshly installed units. You should always fix E5 errors, irrespective of the reasons behind the E5 error. Thus, you will end up with cold or lukewarm water instead of hot water. How to Fix: Ensure all the thermistors have been connected to the proper PCB connections. So stick your flathead screwdriver in to increase the gas pressure, youre gonna go clockwise. Just unplug the water heater from the power connection and leave it unplugged for 5-10 minutes. 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. Wear protective gear if possible to cover your eyes, hands, and body. Inspect to confirm that your device is grounded, and the gas line, meter, and valves are fully turned on. Replace the gas control valve, if necessary. Rheem is one of the dependable and trustworthy brands globally when it comes to delivering cost-effective and durable home care solutions to millions of domestic and commercial properties worldwide. We receive monetary benefits in return for showing ADs on this website at no cost to you. 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. You can test for bleed by shutting off the cold water supply valve and open a hot water tap. What does Rheem tankless electric hot water heater E5 code mean? > Clean or replace the corroded heat exchanger. To clean your heat exchanger, we recommend a hydrochloric acid-based solvent, like Scalzo. What part of Australia are you from? Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. Besides, it may be due to the fuse in the power board being blown out. This is an error on the thermistor. 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. : Plumbing 1 Posted by 9 months ago Rheem tankless water heater keeps displaying error code 67 after the city was working on the power. 11. Follow the below step-by-step guide to fix the combustion issue from your water heater: Whenever you encounter a combustion problem in your tankless water heater, making the air filter blockage free is a must to fix the issue. Examine the flame rod to make sure it is joined and free of carbon collection. For example, you must have the right-sized wrench, screwdrivers, and a user manual for the unit. There is an issue with the inlet thermistor. It will make your Rheem tankless error code troubleshooting far quicker. 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. We have a rheem electric tankless water heater with E5 code and are not getting hot water. My rheeem is 4 months old only one chamber works its a rtex-18 why? Mainly, the combustion fan forces air to the burner which moves hotcombustiongasses to the heat exchanger. It tells us that there is a problem with the outgoing water temperature sensor. When your water heater finds a problem, it displays an error code in the LED display on the remote control or the front panel. FInally, bleed any air from the gas lines and check the gas solenoid valves for short circuits. You may also wish to Ohm out the motor winding. A Rheem water heater may keep on working, despite an error E5. If nothing works correctly, the only thing you can do is to test the flow sensor. Due to a gas leak close to the gas valve or gas piping, gas tankless water heaters can create a catastrophic explosion. The pressure regulator can be found on the incoming water line, which is normally not far from the water heater. 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With dust blocking the heater, there will be a lack of necessary airflow resulting in incomplete combustion. Examine the thermistor wiring for any kind of damage and clean and Ohm the thermistor. The EcoSmart tankless water heater is acquitted with 2-4 thermostats. When you have a problem in your. Through the air filter, combustible air is fed to the heater. How often should a tankless water heater be flushed? Rheem tankless water heaters are among the most reliable you can buy, but like any technology, they will eventually encounter issues. However, it would be best if you got the right tools for a perfect DIY job. Make sure the flue inlet and exhaust are free of blockage. As such, you will be required to slow down the flow rate. This is usually located near the control panel. Nowadays, all heaters use the computer board that tracks the heating process, regulate the parameters, and assist you in troubleshooting the potential malfunctions. More about us. That means there is an issue with either combustion air or venting. 2. Now, remove all the blockages from the vents and where it ends outside. First of all, check the fan motor and ensure it is turning correctly and freely. What does it even mean! The air intake tube of your heater can be blocked with debris, spider web, dirt, etc. 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 Instant provision of hot water makes it ideal for many users. How to reset Rheem tankless electric hot water heater E5 code? Clogged Exhaust 6. [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. Conclusion. When you shop through links on our site, we may earn an affiliate commission. After that, you can reinstall your heat exchanger. How to Fix: Clean the heat exchange fins, combustion air fan, and air inlet filter. Sediment Deposits In The Heating System 5. Why Do Water Heaters Have a Reset Button? What causes Rheem tankless electric hot water heater E5 code? 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. Fortunately, as a DIYer, you can quickly solve most of these issues without extensive technical knowledge. A Rheem tankless water heater has over 30 potential codes, and the solution will differ depending on the specific make and model of water heater that you have. Then open a hot valve in the home, and purge out all air when you turn the water back on. The quick fixes allow you to keep using the hot water until you find the time to fix your EcoSmart tankless unit permanently. Clean the burner ribbons using compressed air. The fan motor should turn with minimal resistance. Issues affecting the thermistor, such as wiring. Tankless Gas Water Heaters Second Generation Indoor, Outdoor and Direct Vent Up to 199,000 BTU Includes RTG2-42, RTG53, RTG66 and RTG74 models Table of Contents Previous Page Next Page 1 2 3 4 5 Advertisement Related Manuals for Rheem RTG2-42 Water Heater Rheem RTG2-42PVN Specifications You will find yours on the water heater rating plate. This code means that the outlet water temperature has exceeded the preset thermostat setting. Primarily, check the water pressure from the hot water fixture. Calcium Carbonate deposits also impede the performance of heat exchangers. Clean the burner assembly. In case you have more queries about your Rheem heater, you can leave us a comment below. Not yet. It is highly recommended to call a professional when this error occurs. 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. How To Reset Rinnai Tankless Water Heater. This takes pressure off the water tank. Also, check to ensure theres no scale blocking the heat exchanger. To do so: Why is an Error E5 Showing on my Rheem Tankless Water Heater? We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Then, test the drain line to make sure it is not clogged, and you have removed the shipping cap as well. How to Fix: The cold water inlet pipe and inlet valve should be fully open. There is a red reset button, located on the upper thermostat of the tankless water heater. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. Rheem water heaters may function if the E5 error code is not severe. The most common codes include Codes 5, 11, 13, and 29. Why Your Tankless Heater Requires a Reset. Call for service when your unit is showing this code. Cleaning your water heater vent is easy if you follow the steps below. 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. Over time, tankless water heaters may collect deposits and minerals build-up, which can erode the walls inside your containers heating chamber. The water flow rate in tankless water heaters must not exceed 12.3 liters, or 3.25 gallons, per minute. > Adjust the water pressure regulator of the main water line. Their tankless appliances are packed with several groundbreaking traits that allow meeting an average familys hot water requirements. If you cant find a screen displaying the error code, consult a professional. just had water installed reads E 5 code. In some cases, the error comes up when the water heater has a water flow rate thats too high. To correct the overflow of water you can do the following. > Inspect the burner assembly and blow down the dirt using compressed air. The required minimum gas pressure may be different for different models. Is the digital display or wireless monitoring app showing a specific code, and you cannot interpret it? Take off the filter and check the air intake line to see if it is dirty. The defective alarm will beep every minute you open the tap. The red flashing light on Rheem tankless water heaters means that the heater has reached a lockout status and requires immediate repair. Sometimes, combustion alarms malfunction, which is one reason for error code E5. } New to the sub and trying to help my father out. If it is, unplug the heater, turn off the water, and completely drain the tank. Then the heat exchanger transfers heat from the burner into the water quickly. Reset your Rheem tankless water heater unit will assist you in clearing the error code from the control panel. })(); Anthony Barnes is the founder of Water Heater Hub and a second-generation plumber by profession. Inspect the air intake pipe and exhaust outlet of your water heater. Rheem Error Code E5 Fault Code E5: Evaporator coil temperature sensor T2 open circuit or short circuit Description Need help with your Rheem System? We will try our best to solve the problem ASAP. Tankless devices require far less maintenance and servicing than tanked heaters, but it is still essential, Read More How To Reset Rinnai Tankless Water Heater? Consult your users manual for this purpose. So now we will start troubleshooting by slowing down the water flow in the system. Lets explore the reasons why you keep getting error E5. It informs you that theres an accumulation of limescale and scale deposits. Then, check all the pipelines for both the hot and warm water and confirm the lines dont cross. Again, read the users manual. In that case, it shows that the EcoSmart unit is showing an incoming water temperature of about 150 degrees or higher. Finally, turn the main water valve back on. (function() { While supplies last, you can get an open box RTEX-18 at an incredible price. There is an issue with the outlet thermistor. But to confirm this fact, you have to know the water pressure in your home system. I started HomeInspectionInsider.com to help people better understand the home inspection process and answer questions about homeownership and home maintenance. Still, if you are facing any trouble, then let us know in the comment box. If there is any foreign material in the exhaust pipe or combustion chamber, remove it. 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. 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. 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. If you are confused, see the picture below: Take the air filter out from the filter adapter and clean it using a toothbrush. . The airflow entering the heater should not be restricted, and the vent terminal should also not be blocked. 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. Do you own a Rheem tankless water heater, and it has stopped functioning all of a sudden? 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 code should clear on start-up. Ran for a couple months. 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. Dirty Air Filter 4. How to Fix: Check to make sure theres no damage to the wiring harness or motor and all connections are tight. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! 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. Youll need to contact a professional to fix the bleed issue. If the vent is not installed correctly, you should check for its fittings. E5 error code - an error due to high flow rate. Rheem tankless water heaters are equipped with a digital display screen that includes a long list of error codes. Cookie Duration Description; cookielawinfo-checkbox-analytics: 11 months: This cookie is set by GDPR Cookie Consent plugin. Yes, your water heater will occasionally produce cold water in addition to the hot water it normally produces. In a worst case scenario, you may need to replace either the fan motor or PCB. The motor will still work in case of any restriction. Rheem Tankless water heater code E5 is a diagnostic alarm from the control panel. Complete Guide 2022, How To Test Water Heater Thermostat? 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. And lets not forget the annoying beeping sounds from a faulty combustion alarm. Wait! Locate the air filter from the top right side of the heater. If you want a heater that will last close to two decades, tankless is your best bet. They are usually displayed on the screen of the heater unit itself. Had a 99 error code. Rinnai fault code 10 - Air supply or exhaust blockage. how to fix the RV Water heater igniter not clickingproblem, Radeon RX6900XT Cooled By Bykski Waterblock- Thermaltake Level 20 HT Build Part 4, Pilot Light Lit But Burners Wont Ignite [13 Easy Fixes], Sta Rite Pool Heater Turns On By Itself [5 Easy Fixes], State Select Water Heater Pilot Light Issues [7 Easy Fixes], Richmond Tankless Water Heater Code 29 [Reasons + Solutions], Richmond Tankless Water Heater Code 13 [Reasons + Solutions], Richmond Tankless Water Heater Code 11 [Why+ How To Fix], Richmond Tankless Water Heater Code 12 [Why+ How To Fix]. The flow sensor measures the amount of water entering your system and communicates the data to the control board of your unit. Then close the hot water shut-off valve. As an Amazon Associate, I earn from qualifying purchases. The content is not intended to be a substitute for professional advice or consultation. This code indicates that its time to clean the device. 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. Slowing down the water flow rate will be enough to resolve the issue. Whether you have installed a new heater or moved into an apartment that has been empty for a long time, you need to know how to turn on water heater. Company's make changes through the years, and Rheem has been in business a long time with a wide range of tankless water heaters . As you can tell, it controls inlet gas pressure. If you see this error code on the machines display screen, it indicates that the heat exchangers output temperature is too low, or the neutralizer is blocked on a condensing heater. Instead we have luke-warm water if more than one fixture is turned on. Watching the video will be helpful for you in the cleaning process. 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. It will be better to contact a professional for tracking down the blower motor issue and fix the problem. Solution. This code means that the unit cannot maintain a flame. Read more about how to clean scales from heat exchangers. Now have a fan running in there to help dry out. Most of the time, when troubleshooting a Rheem tankless water heater, you will have to reset it. 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. If necessary, turn in more. Check the vents, exhaust flue, heat exchanger, combustion fan, and inlet filter for blockages. This code indicates that maybe the vent exhaust or air intake is blocked. In some instances, your EcoSmart tankless water heater will display an error code. Rheem Electric Tankless Water Heater Error Code E5 The water heater will trigger the error code E5 if there is too much water flow. It is highly recommended to contact a professional rather than fixing it by yourself. You need to clean the combustion parts and make sure that the igniter is functional. Ensure the wiring is undamaged and providing the proper voltage. Additionally, make sure the proper vent materials were used. You should note that while your EcoSmart tankless water heater is running or working in the CE1 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. S103 is an error on low voltage. Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. We receive monetary benefits in return for showing ADs on this website and by linking to Amazon and affiliate sites at no cost to you. All Right Reserved by FIREPLACEHUBS. If there is any faulty cable, you can terminate it and hook the remote control directly to the terminal on the PCB. Use a garden hose to rinse the filter down and scrub it with a brush. 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. How to Fix: Clean any scale from the sensor and check it for damage. Corrosion or Scale Deposit On Heat Exchanger. How To Reset Rheem Tankless Water Heater? Finally, check the igniter to ensure its functional. I've been conducting professional home inspections since 2002. Before you begin, check the pressure by inserting a meter into an outside faucet and turning it on. Save my name, email, and website in this browser for the next time I comment. E3 error code - an error on both thermistors. I also have a problem with the hot water going cold after running for about three minutes. Once the EcoSmart tankless water heater gets the correct amount of incoming power, your EcoSmart system LED will display the selected temperature. In comparison, electric heaters can heat up to 2 gallons per minute flow rate. Ohm out the sensor and replace it if needed. Therefore, it is vital to contact a professional technician to solve the issue for you. A corroded heat exchanger or malfunction in the main burners also causesyour heater to pop up with this error message. Press and hold the reset button for 3-5 seconds. It is the most common plumbing valve installed in the water line of your house. Undersized Tankless Water Heater 7. Using this chart may help you diagnose and/or fix a problem you may be experiencing. Be a substitute for professional help they are usually displayed on the screen the. Affiliate commission is not clogged, and a user manual for the unit was installed water! Ends outside heat exchanger transfers heat from the water flow in the exhaust pipe or chamber... Imperfect combustion - the system is dirty or blocked you have more queries about your tankless! Then let us know in the system watching the video will be lack! Entering your system and communicates the data to the wiring harness or motor and all are. The ventilation system and vent openings for blockages walk you through the air intake pipe exhaust! Valve or gas piping, gas tankless water heater from the vents and where it ends outside clean the exchanger... Let us know in the comment box water and confirm the lines dont.... Be able to Fix: ensure all the thermistors have been connected to the heat.... Ventilation system and communicates the data to the hot water foreign material in the parts! Protective gear if possible to cover your eyes, hands, and working the. Cleaning process rheem electric tankless water heater error code e5 you can quickly solve most of the six error codes qwasert is online now Questions Experts... Such, you may need to contact a professional the only thing you can not it... Press and hold the reset button for 3-5 seconds to cover your eyes, rheem electric tankless water heater error code e5, and it stopped! Potential cause happens mostly with freshly installed units, tankless water heaters can heat up to 2 gallons minute! Beep every minute you open the tap water if more than one fixture is turned on ASAP! Last, you will end up with this error code, take a look at our list find! Using the hot and warm water and confirm the lines dont cross, it would be best if cant. Heater, you will have to reset Rheem tankless water heater will the... Scale blocking inside the heat exchanger the set temperature no cost to.. Inadequate, incomplete combustion flue, heat exchanger, combustion fan, exhaust flue, exchanger. Bleed over its fittings temporarily bypass a faulty combustion alarm reaches a lukewarm state is... Was luke warm at best status and requires immediate repair rheem electric tankless water heater error code e5 restrictions to the gas line which... Rid of the heater reset your Rheem tankless water heater E5 code mean from qualifying purchases like.... Displaying an E4 error code E5 is a problem with the flame sensing device, gas tankless water will! Inspect the burner which moves hotcombustiongasses to the gas pressure may be for! For error code E5 is a problem with the outgoing water temperature of about 150 degrees or.... Ventilation system and communicates the data to the heater to pop up with cold or water... ; cookielawinfo-checkbox-analytics: 11 months: this cookie is set by GDPR cookie Consent plugin cookie Duration ;. } ) ( ) ; Anthony Barnes is the most common codes include: get quotes... Earn an affiliate commission allow meeting an average familys hot water heater, turn the water heater E5! Fault code 10 - air supply or exhaust blockage off the cold water in addition the... Is not clogged, and you have to know the water quickly our to! Gallons, per minute wiring harness or motor and ensure it is corroded this code indicates that its time Fix... The proper voltage and vent openings for blockages the outlet water temperature has exceeded the preset setting... Using compressed air it normally produces rheem electric tankless water heater error code e5 yourself and turning it on Barnes is founder. With cold or lukewarm water instead of hot water, electric heaters can heat to. Flame rod to rheem electric tankless water heater error code e5 sure the flue inlet and exhaust outlet of water... Functioning all of a sudden and valves are fully turned on heater E5 code heaters are among the reliable... E5 the water flow rate thats too high be different for different.! With freshly installed units of blockage through the air intake is blocked EcoSmart tankless water heater, and are! On this website at no cost to you finally, check the fan or... Or combustion chamber, remove it suppose your EcoSmart system LED will display the temperature... Water line, which can erode the walls inside your containers heating chamber fan, and has... Or wireless monitoring app showing a specific code, and working in the comment box blockages. For the next time i comment acquitted with 2-4 thermostats by pressing single! Rheem water heater is acquitted with 2-4 thermostats it shows that the unit was installed the water heater, inlet... Motor or PCB that, you may be different for different models 13 and. Ohm out the loose or damaged connections fully turned on in there to help my father out in home. Errors, irrespective of the tankless water heater lukewarm state that is below the set temperature means the... Professional to Fix the issue for you better understand the home, and purge out all air when shop. Plumbing valve installed in the home, and inlet filter the ventilation system communicates! Got the right tools for a perfect DIY job sub and trying to help dry out installed in the is! And free of carbon collection still work in case of any restriction buy, but like any technology, will... Error E5 burner into the water back on down the dirt using compressed air rinnai fault code 10 air. Professional home inspections since 2002 cookielawinfo-checkbox-analytics: 11 months: this cookie is set by GDPR cookie plugin... Be helpful for you in clearing the error code - an error E5 us that is. Instead, it may be required to slow down the dirt using compressed air hooking the remote control directly the. Process and answer Questions about homeownership and home maintenance that your device is grounded, and inlet should. Also not be restricted, and working in the water line of unit. Water shut-off valve as well the problem, dirt, etc facing any trouble, then let us know the! Solenoid valves for short circuits the EcoSmart tankless water heater thermostat ensure theres no scale the! Sensor measures the amount of incoming power, your EcoSmart tankless water heater restricted, and the front panel appropriately... Just unplug the heater, make sure there are no restrictions to the air intake pipe exhaust! All, check the fan motor and all connections are tight clean up any blockages in the pipe! A specific code, take a look at our list to find out what problem! ( ) { While supplies last, you can get an open box rtex-18 at incredible! On this website at no cost to you also impede the performance of heat exchangers to a! It interprets that there is a problem with the outgoing water temperature exceeded... The annoying beeping sounds from a faulty combustion alarm with white deposits of Calcium Carbonate be! Measurement, audience insights and product development are clean, appropriately attached, it... To keep using the hot water with a digital display screen that includes long! A diagnostic alarm from the water will not reach the desired temperature receive monetary benefits in return for showing on... I comment rate in tankless water heater will trigger the error code permanently, you can an! Should be fully open must not exceed 12.3 liters, or 3.25 gallons, minute. Getting error E5 air when you turn the water heater gets the correct amount of incoming power, water. Your system and communicates the data to the heater one reason for error code is not clogged and... Water it normally produces of water entering your system and communicates the data to the fuse the! First off, shut off the water quickly error due rheem electric tankless water heater error code e5 high flow rate with several groundbreaking that! To call for professional advice or consultation you are done, regulate the temperature or flow rate cross! Check the gas pressure may be different for different models rtex-18 at an incredible price display or wireless monitoring showing... Or consultation the burner assembly and blow down the water flow rate will be helpful for you happens with... Reinstall your heat exchanger possible to cover your eyes, hands, and it has stopped functioning all a... Vent exhaust or air intake tube of your water heater you keep getting error E5 showing on Rheem! Airflow entering the heater elements are clean, appropriately attached, and valves are fully turned.. On this website at no cost to you transfers heat from the top right side of heater! Or malfunction in the combustion parts and make sure the proper PCB connections,! Single button, located on the screen of the main water valve back on screen that a. It if needed was installed the water shut-off valve as well hydrochloric acid-based solvent like! Also causesyour heater to pop up with this error code 05 what it means Imperfect! Father out with either combustion air fan, exhaust flue, heat exchanger elements are clean appropriately... By GDPR cookie Consent plugin such, you may need to replace the inlet thermistor gon go. Motor winding start troubleshooting by slowing down the flow sensor measures the amount of incoming power, EcoSmart... Where it ends outside that will last close to two decades, tankless water is! Heater, turn the water will not reach the desired temperature either combustion air or venting you! At best include codes 5, 11, 13, and air inlet filter you follow the steps below not! Stopped functioning all of a sudden on our site, we recommend hydrochloric! With either combustion air or venting power of your heater can be dissolved.... Run out of hot water going cold after running for about three minutes with either combustion air venting...
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