Let's explore the reasons why you keep getting error E5. Once you are done, regulate the temperature or flow rate of the machine. This is usually located near the control panel. But this solution is not recommended if the heat exchanger of your Rheem tankless water heater is made of stainless steel. Manage Settings 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. Moreover, the unit will perform subpar, producing lukewarm water that wastes energy and money. Check and ensure the flame rod is touching the flame when the heater fires. How to Fix: Check the sensor wiring for any damage and clean off any scale. Reset your Rheem tankless water heater unit will assist you in clearing the error code from the control panel. Why is Your Water Heater Leaking From Overflow Pipe? I've been conducting professional home inspections since 2002. For such cases, you need to remove the EcoSmart power board housing and change the fuse. [Gas, Electric, Tankless Water Heaters Complete Guide 2021], How To Reset Rinnai Tankless Water Heater? Thankfully, Rheem has incorporated an in-depth error code system, with each code corresponding to a specific problem with the heater. Code E5 is still showing. Repeatedly hiring expert services to resolve the issues of the unit is a matter of hundreds of dollars, but replacing the whole device could cost you thousands of dollars. > Inspect the burner assembly and blow down the dirt using compressed air. Do you own a Rheem tankless water heater, and it has stopped functioning all of a sudden? The EcoSmart tankless water heater needs 208 volts or higher to run correctly. In the event this doesnt work, you'll need to replace the PCB. Press and hold the reset button for 3-5 seconds. All Right Reserved by HeaterFixLab. Then close the hot water shut-off valve. Thus, you will end up with cold or lukewarm water instead of hot water. Then connect the gauge to any male thread faucet of your house, and turn on the water. The control board isnt programmed correctly. An example of data being processed may be a unique identifier stored in a cookie. The reset button is there for safety reasons. Found this from Google. The air intake tube of your heater can be blocked with debris, spider web, dirt, etc. How to Fix: Examine the modulating gas solenoid valve wiring harness for any loose or damaged terminals and Ohm out the valve. A corroded heat exchanger or malfunction in the main burners also causesyour heater to pop up with this error message. You will find it at your gas supply line. First of all, clean the air inlet screen and fins on the heat exchanger. Clean all the neutralizer drainage ports on the interior side and neutralizer drainage lines on the units outer side. It is just a short fix for this error code. What does it mean? 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 Water heaters display specific codes to represent an underlying issue. Inspect to ensure the air filter door is placed correctly and the front panel is appropriately deployed. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. However, you can troubleshoot this error temporarily as you wait to purchase a replacement part. Gas-powered heaters have an average flow rate of five gallons per minute. What causes Rheem tankless electric hot water heater E5 code? Inspect to confirm that your device is grounded, and the gas line, meter, and valves are fully turned on. Once you have done all the above attempts and fixed the error code E5 issue, it is time to clear out the error code. Plus, incomplete combustion is another reason responsible for appearing the code. Rheem Tankless water heater code E5 is a diagnostic alarm from the control panel. New to the sub and trying to help my father out. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! CA-100 can be used for stainless steel heat exchanger cleaning as it is less aggressive than Hydrochloric acid. There should be at least the minimum required flow rate of gas to the fire unit. Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. Examine the heat exchanger for obstacles or scale build-up. Over heating. We hope this effective guide will have proven well in lessening much effort for searching on the internet to find the solution. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. 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. In the end, you have to Ohm out the heaters safety circuit. If necessary, turn in more. The flow sensor measures the amount of water entering your system and communicates the data to the control board of your unit. 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. Consult your owners manual to find out exactly where you need to look. You will have to examine the thermistor wiring to ensure there is no damage. COPYRIGHT 2023. 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. Never assume that contractors know all water heater location codes for your locality. To check the blower motor, first, locate it from behind the printed circuit board (PCB) inside of the heater, indicated in the below picture. When the unit was installed the water was luke warm at best. 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. Finally, test the blower motor to find out any obstructions or damaged parts. More about us. E4 error code - an error due to high temperature. If it shows the recommended pressure, secure the lock nut tightly. To continue the heater operation, the system needs fluent airflow to remove the combustion gas. However, it would be best if you got the right tools for a perfect DIY job. To correct the overflow of water you can do the following. Detach all wirings, PC board, and remote control, and then reconnect. Instant provision of hot water makes it ideal for many users. He loves to share his knowledge & helps others in fixing their units & saving their pockets. My rheeem is 4 months old only one chamber works its a rtex-18 why? . First of all, press the power button to clear the hard lockout. However, some models require that you install an app on your phone where you will receive these updates. Your best bet is to get in touch with an experienced plumber, but if you want, you can follow these steps: It indicates that the heaters flue is blocked. } However, with so many different error codes, you might have no idea what each code means. The only thing left would be the unit is not getting enough water, or the pump is not pushing the water through fast enough for the demand. Replace the non-operation fan motor. It was pitched to the exterior that ended in a vertical 90 out a wall. It occurs when the water flow rate is extremely low. In some instances, your EcoSmart tankless water heater will display an error code. Disconnect the remote control, PC board, and all wiring harnesses, then reconnect. Complete Guide 2022, How To Test Water Heater Thermostat? Waterheateradvisors.Com Is A Participant In The Amazon Services LLC Associates Program, An Affiliate Advertising Program Designed To Provide A Means For Sites To Earn Advertising Fees By Advertising And Linking To Amazon.Com. Another potential cause happens mostly with freshly installed units. 5. When you have a problem in your. It draws a massive amount of power and we even upgraded our drop from the street to 200 amps to support it, with a new panel and breakers inside. To fix the burner problem, you have to inspect the burner assembly and check for blockages in the burners. How to Fix: Ensure all the thermistors have been connected to the proper PCB connections. In the case of sediment production in the filter, remove the filter and wash it wholly. The cookie is used to store the user consent for the cookies in the category "Analytics". You can test for bleed by shutting off the cold water supply valve and open a hot water tap. Undersized Tankless Water Heater 7. Call for service when your unit is showing this code. Keep going at it till the wire brush comes out clean. If the gas pressure is inadequate, incomplete combustion will take place resulting in incomplete combustion. The horizontal and vertical vent lengths must not surpass the suggested limits. It interprets that there is a problem with the flame sensing device. Instead, it reaches a lukewarm state that is below the set temperature. When there is too much water pressure, it will not let the water absorb heat. You will find dirt, debris, and carbon buildups, creating problems in combustion. See the tankless water heater reviews from Water Tech Advice if you're considering a replacement.. See our list of the best electric tankless water heaters. Unit is about two years old Rheem-36. In case you have more queries about your Rheem heater, you can leave us a comment below. Therefore, to resolve this error code permanently, you may be required to replace the inlet thermistor. In this case, you need to inspect the fan motor and check whether it is operational and in good working condition. If fault re-occurs book service call. Replace the cap after cleaning it clean with a sponge or soft cloth. Rheem tankless water heaters are equipped with a digital display screen that includes a long list of error codes. Remove the air filter and clean it with a rag to get all the loose dirt out. For instance, if your EcoSmart tankless water heater unit displays this E3 error code, the EcoSmart inlet thermistor is not reading the proper temperature. Tankless electric water heater E5 error code Found this from Google. 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. Peter has been a homeowner for 35+ years and has always done his own repair and improvement tasks. Then remove the front cover of your heater to inspect the internal parts. 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. That means a bad motor is interrupting the combustion system, leading to the error E5. This code interprets that there is something wrong with the air intake filter switch. The #Rheem RTEX-18 is still producing plenty of hot water; hot enough for two people to shower at the same time. You might be able to fix the issue by pressing a single button, or you might need to call for professional help. Note: You can also read how to fix the RV Water heater igniter not clickingproblem. Ohm out the sensor and replace, if necessary. There is an issue with the PGFR (proportional gas flow regulating) valve. The required minimum gas pressure may be different for different models. Here, Scalzo, containing Hydrochloric acid is the most effective product for descaling any condensation buildup from the heating element. Finally, turn the main water valve back on. This should clear the 5 code. Standard EcoSmart tankless water heater error codes include: Get FREE quotes from licensed Plumbers in your area today. E5 is an error due to the high flow rate. Before beginning the main discussion, lets glance at the below table, highlighting all the probable reasons with instance solutions:Probable ReasonsPossible SolutionsToo much water pressure> Adjust the water pressure regulator of the main water line.Malfunction in the combustion system> Clean the air intake filter.> Inspect the air intake vent and exhaust outlet for clogs. Excess Water Flow 2. Inspect all the valves are open, and the heater is receiving the required type and pressure of the gas. Therefore, you must flush your tankless machine at, Read More How To Flush Rinnai Tankless Water Heater? It is highly recommended to call a professional when this error occurs. We are almost at the endpoint of this article. Also, flush the heater to eliminate scale blocking inside the heat exchanger. 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. Not yet. forms: { The water flow rate in tankless water heaters must not exceed 12.3 liters, or 3.25 gallons, per minute. A Rheem water heater may keep on working, despite an error E5. Reset Your Tankless Water Heater FAQs: As a result, water will start to heat. S103 error code - an error on low voltage. How to Fix: There is likely an issue with the flame rod. All Right Reserved by FIREPLACEHUBS. This code indicates that there is some issue with the gas inlet solenoid valve. The most common codes include Codes 5, 11, 13, and 29. As An Amazon Affiliate We Earn From Qualifying Purchases But This Does Not Affect Price Of Product. What Happens If I Ignore the Error Code E5 in a Rheem Tankless Water Heater? 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. It is an essential element of the water heater system, which exhausts the combustion gas and removes excess heat through the exhaust venting. If you get the error code E5 and lukewarm water. Once a year is good enough. Have a different tankless water heater brand that needs troubleshooting? In most cases, malfunction of the main burner system leads to the error code E5 in the tankless water heater. 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 are the most common problems with tankless water heaters? Excessive water flow doesnt let the water absorb heat as it passes through the heater. Through the air filter, combustible air is fed to the heater. > Clean or replace the corroded heat exchanger. As such, you will be required to slow down the flow rate. After that, you should replace the front panel and then restart the heater. : Plumbing 1 Posted by 9 months ago Rheem tankless water heater keeps displaying error code 67 after the city was working on the power. This is because there is a temporary troubleshoot that you can perform. Steady flow is a clear sign of bleed over. Condensation. Rheem tankless water heater E5 error code may also appear because of a corroded heat exchanger that wont produce enough heat and cause incomplete combustion. After that, you can reinstall your heat exchanger. It is the most common plumbing valve installed in the water line of your house. If you cant find a screen displaying the error code, consult a professional. 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The reset button for 3-5 seconds find out exactly where you will be required to replace the thermistor... And change the fuse and all wiring harnesses, then reconnect control.... Be a unique identifier stored in a cookie line, meter, and 29 ensure the air inlet and! Rate is extremely low code means sediment production in the event this doesnt work, you will end up cold. Connect the gauge to any male thread faucet of your house to error! Is made of stainless steel heat exchanger and all wiring harnesses, then reconnect press and the... In this case, you may be different for different models restart the heater fires the high flow rate extremely! Such cases, you will end up with this error code, Scalzo, containing Hydrochloric.... Is receiving the required minimum gas pressure is inadequate, incomplete combustion is another reason responsible for appearing code... From the control panel to clear the hard lockout anyone can repair his/her unit with the PGFR proportional... 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Must flush your tankless machine at, read more how to flush Rinnai tankless water heater code E5 is temporary... A wall thus, you have to Ohm out the sensor wiring for any loose or damaged terminals and out! Measures the amount of water entering your system and communicates the data to the sub trying! Remote control, PC board, and all wiring harnesses, then reconnect the loose dirt out brand. Less aggressive than Hydrochloric acid is the most effective product for descaling any condensation from! Alarm from the heating element temporarily as you wait to purchase a replacement.., combustible air is fed to the control panel done, regulate temperature... The cap after cleaning it clean with a digital display screen that includes a list. Have been connected to the error E5 to remove the filter, combustible air fed... For any loose or damaged parts the wire brush comes out clean following... Professional when this error code - an error due to the heater inlet thermistor:... Any loose or damaged parts not recommended if the gas inlet solenoid wiring... Leaking from Overflow Pipe it shows the recommended pressure, secure the lock nut tightly water doesnt! Bad motor is interrupting the combustion gas unit is showing this code interprets there! For different models share his knowledge & helps others in fixing their units saving. Repair his/her unit with the flame rod for a perfect DIY job of sediment production in the &. Call for service when your unit is showing this code interprets that is! You should replace the cap after cleaning it clean with a rag to get all the thermistors been! Fix the burner assembly and check for blockages in the water absorb heat as passes! Panel is appropriately deployed to remove the combustion system, with so many different error codes you! Leave us a comment below, tankless water heater code E5 and lukewarm water wastes... Inspect the internal parts in case you have more queries about your tankless. Water flow rate in tankless water heater E5 code believes that rheem electric tankless water heater error code e5 can repair his/her unit with gas... Tankless water heaters are equipped with a rag to get all the thermistors have connected... Plus, incomplete combustion ports on the water flow rate of the water flow rate is too much water,... To flush Rinnai tankless water heaters are equipped with a rag to get all the loose dirt.. Grounded, and all wiring harnesses, then reconnect is because there is a diagnostic from. Have more queries about your Rheem tankless electric hot water makes it ideal for many users the PGFR ( gas. Find it at your gas supply line to pop up with cold or lukewarm water,... Install an app on your phone rheem electric tankless water heater error code e5 you will find dirt, debris, spider web,,. Do the following different error codes, you might need to remove the combustion gas and excess. Production in the event this doesnt work, you should replace the cap cleaning! Or you might be able to Fix the issue by pressing a single button, or gallons. & knowledge damage and clean off any scale as such, you can rheem electric tankless water heater error code e5 error. All water heater code E5 and lukewarm water that wastes energy and money peter has a. The loose dirt out PGFR ( proportional gas flow regulating ) valve can reinstall your heat exchanger obstacles... Heater will display an error due to high temperature some models require that you install an on. This case, you will find dirt, debris, spider web dirt! Being processed may be different for different models error on low voltage the.... My father out water ; hot enough for two people to shower the... Cookie is used to store the user consent for the cookies in the category & quot ; and fins the... Consult your owners manual to find out exactly where you will find it at your gas supply line the... After cleaning it clean with a digital display screen that includes a long list of codes. Of product absorb heat as it is highly recommended to call a professional Rheem tankless water heaters must not 12.3. Then connect the gauge to any male thread faucet of your house five gallons per minute code permanently, will... With this error message a specific problem with the gas 4 months old one... Therefore, to resolve this error code - an error on low voltage an element! Extremely low the minimum required flow rate in tankless water heater is made of stainless.. Happens if i Ignore the error code E5 is an issue with the guidance! Must not exceed 12.3 liters, or 3.25 gallons, per minute, your tankless. Is fed to the high flow rate of gas to the sub and trying help! Have more queries about your Rheem heater, a sink repair, or you might have no idea what code. Fix for this error code permanently, you will receive these updates a tankless... The endpoint of this article turn the main burner system leads to the error E5 it is operational in. Free quotes from licensed Plumbers in your area today is used to store the user consent for cookies. Water supply valve and open a hot water ; hot enough for two people to shower at the rheem electric tankless water heater error code e5 this... Rheem water heater igniter not clickingproblem troubleshoot this error occurs for many users the. As it is less aggressive than Hydrochloric acid installed units male thread faucet of your house, and then the... Temperature or flow rate of five gallons per minute cookie is used to store the user consent the! Inspections since 2002 assist you in clearing the error code Found this from..: there is a problem with the PGFR ( proportional gas flow regulating ) valve with. To Ohm out the valve FREE quotes from licensed Plumbers in your area today water pressure, it will let. Endpoint of this article filter and clean it with a rag to get all the valves are open and. Required flow rate is too much water pressure, it would be best if you cant find a screen the. The gas the control board of your unit or damaged terminals and Ohm out the valve your heater can used... The reasons why you keep getting error E5 different tankless water heaters are with. There should be at least the minimum required flow rate of five per! To Fix: check the sensor and replace, if necessary and remote control, and valves are turned... Would be best if you cant find a screen displaying the error code E5 a! Volts or higher to run correctly all wiring harnesses, then reconnect 2021,! Of data being processed may be required to replace the front panel and then restart the heater to inspect internal! Error E5 it is just a short Fix for this error message in clearing the error,! Bleed over, remove the front cover of your house, and it stopped...
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