Overloading is a common issue that you can usually correct with a reset. When this happens, it is not a problem if the heat pump is working properly. You also learn how to prevent errors in the future. If the fault is not so serious then you may be able to fix it yourself and get your water heated soon enough. Heres how: Its important to note that replacing a defective PCB can be pretty complicated for those unfamiliar with water heater components and their functions. Error Code 12 indicates that the system cannot detect flames while heating water. Reset your Rheem water heater ( press the 'min' and 'max' buttons on the control board). The possible fix to clearing these codes are as follows: Diagnose and find the problem; only then can you apply the appropriate fix. The error code A105 is caused by the sensor or the wiring harness is bad or it could be the circuit board. Find many great new & used options and get the best deals for Rheem RTEX-18 Electric Tankless Water Heater - Grey at the best online prices at eBay! Despite their outstanding reputation, sometimes users will encounter some technical difficulties. One such cause is inadequate gas pressure. Thus, the heat exchanger transfers the gas burners heat to the water passing through it. Troubleshooting for a switch malfunction could mean turning it off and on again by forcing a reset on the control board, all you need to do for that is press the MIN and MAX button. } The chart on the package should be used to confirm the correct reading. Why My Carrier Infinity Thermostat has No Power? (Yes. You may even want to take out the flame to check it and clean it with some steel wool. Disconnect remote control. Should the heat exchanger keep a temperature of 207 F for a period of longer than 15 seconds then error code 15 may occur. ET. Rheem toll-free at 866-369- 4786 from 7 a.m. to 7 p.m. CT Monday through Saturday and from 8 a.m. to 3:30 p.m. CT on Sunday or online at www.rheem.com and click on Recall Information for more information. (Motor will operate with a small amount of restriction.) If you cant locate a loose wire, replace the electronic control module. The U.S. Consumer Product Safety Commission (CPSC) is charged with protecting the public from unreasonable risk of injury or death associated with the use of thousands of types of consumer products. If you are dealing with error codes or other electronic issues with your tankless Rheem water heater, we are here to help. Try taking shorter showers and install a more energy-efficient shower head. If the hose is okay, check for clogs in the hose. h If your Rheem tankless water heater is till giving you trouble, its time to contact Rheem support. So, if you encounter this problem, its time to replace the sensor. Whats more? Reason: Air Intake Filter Switch Malfunction. Corrosion or Scale Deposit On Heat Exchanger FAQs: What are the most common problems with tankless water heaters? Deaths, injuries, and property damage from consumer product-related incidents cost the nation more than $1 trillion annually. =t!Dm%&GIpxFE(=s 03Mar2015 13Apr2015, 01Jan2014 21Dec2014 Similarly to error code 51, you may want to check that the terminals on the gas solenoid valve wiring harness are not loose or damaged. }{ the features, operation, safety precautions, maintenance and troubleshooting of the water. Check heat exchanger for cracks and/or separations. The first step is to check the gas level in the tank and be sure it is sufficient. The flame sensor is part of the inner compartment of your heater. Now its time to confirm the reading on the Ohm chart. But this might be an error that you need to, When most people think of air conditioners, they likely associate them with hot summer months, not chilly winter weather. These can include checking for damage to the thermistor wiring and to check the thermistor for the right number of ohms. To fix flow issues that do not show an error code, you will need to adjust the water flow into the water heater. I called Rheem today and they said since I have it on 140 it will do that and to keep it on 120. endstream endobj 81 0 obj <>stream How to Fix: Some simple issues can result in the water flow being low and you should be able to solve them yourself. The thermistor should also be free of any limescale build-up and may require a clean. There may also be loose or damaged connections attributed to the motor wiring harness that could be the true cause of the error code. If you are looking for a warranty on your Rheem tankless water heater, please check out this link. My Rheem Solar Hot Water System is showing a fault code. Using the fix helps to keep the system functional. The water temperature should be checked after the thermistors are replaced. Incorrect Gas Pressure 3. However, you can also find a wealth of information from the owners manual which will be specific to your model of a tankless water heater. However, there are several reasons why someone might choose to run, Crosley refrigerators are not immune to ice maker problems. Here is a video that guides you on how to remove and replace the gas control valve of your Rheem tankless water heater; The flame sensor is essential for the data system of your water heater to detect or clear the error code 12. After pulling, remove the nuts that hold the sensor in place. Rheem Water Heater Ultimate Troubleshooting Guide, Rheem Water Heater Drain Valve Leaking (Fixed), Candy Tumble Dryer Keeps Stopping: Troubleshooting Tips, Loc Error Code on Hoover Dryer: Troubleshooting Guide, [Fixed] Rheem Tankless Water Heater Code 12, Hot Water Heater Calcium Removal [How to Guide], Samsung Washer SUD Code but no SUDs? Here is how: The heat exchanger in a Rheem tankless water heater can get clogged by mineral deposits over time. Our comprehensive Rheem Water Heater error code guide will explain common issues, provide tips, and show you how to read your model's error codes. However, most of the problems can be fixed in a small home repair or an appliance repair. >B#aVfX?x*BUBU1nfrdQxG}Ap~cPo@8 %Kv\ Hence it is necessary to detach the line from the setup and check independently. Your email address will not be published. Ohm out solenoid valve. Care and cleaning of the water heater. Replace PCBCODE:29 PROBLEM:Heat Exchanger Outlet Temp. Bypass remote control cable by connecting remote control directly to remote control terminals on PCB. Confirm the reading again on the ohm meter. They are usually displayed on the screen of the heater unit itself. Straighten the hose if it bends anywhere. The control module also relays the information to the water heater, which then indicates the water temperature. It controls the flow of refrigerant into the heat pump. Related Repair Pages:Rheem Air Conditioner Repairs, Rheem Furnace Repairs, Rheem Water Heater Repairs. A heat exchanger is a crucial device in your Rheem tankless water heater. The actual reset button is located just above the units thermostat, and it will be labeled Reset Button and be bright red. When this happens, error code 12 appears on your heater. Bleed all air from gas lines. The system detects some of these faults using an error code. Heres What We Found, Why Would Someone Run Their Air Conditioner in the Winter? You may need to flush the system using distilled white vinegar though do be careful as the water would naturally be hot. This is the sensor that allows your water heater to display the current temperature of the water inside of it. Remove the access cover on the heaters side by unscrewing the screws. This could cause the control module to issue an error code. How to Get a Rheem Water Heater Maintenance Manual? forms: { Disconnect the tankless water heater from the power source or the circuit breaker. Check for restrictions in air flow around unit and vent terminal. What is the Acceptable Micron Rise? While there are various models, most Rheem tankless water heaters have a simple reset button. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Make sure to refer to the Rheem water heaters manual for specific instructions on how to clean the heat exchanger. As mentioned, you will need to clean your water heater, especially the heat exchanger, as this can attract mineral deposits. The fan motor should also have the right voltage and may be water damaged due to condensation. Please visit www.cpsc.gov/commissioners to search for statements related to this or other topics. You could also check the outlet thermistor, heat exchanger thermistor, and the gas valve are all in good working order. It would help if you also. Replace fan motor. Make sure that you set the thermostat at the correct temperature first. This error code shows that there is a problem with the flame unit, and this can result from several issues. If the bending has led to damage, such as cuts on the hose, it is crucial to close the control valve and replace the hose as soon as possible. Ensure heat exchanger fins, fan, and air intake are not blocked. Check that the valve is not stuck or clogged on the side. ); Your Rheem tankless water heater has a reset button to help clear error codes within the system. Ohm out solenoid valve. Turn the water heater OFF, disconnect all the wires from the sensor, open the tank lid, and touch the meter to the top of the sensor. Error code 79 should indicate that there is a problem with the current heading to the blower motor and you may want to do a service call. First, replace the thermostat. You should be using it at all times. Replace remote control. ]LVJvHQZUU{\!IY;#kbN?R:tdxv5} rFco FIX:Ensure gas type and pressure is correct. If the sensor is showing +250F the car kit must have a problem somewhere. a6&(W017HPY9f ;6fsH~1 If this does not work, visually inspect the flow sensor and contact the Rheem customer service line if you notice a sensor issue. Some of the other reasons for Error Code A105: The water heater error code A105 is typically caused by a malfunctioning temperature sensor. Learning is my key. This error can be checked via two methods; checking that the front panel is installed properly and that the air filter door looks to be sealed correctly. Here are the steps involved: Cleaning the flame sensor solves the problem. The neutralizer may need to be replaced and if it does then error codes 92 and 93 may be set off. This video will show you how to clear the A102 water sensing code on a Rheem water heater. Turn off, or remove circulation pumps (unit is not designed for continuous operation with circulation systems). A105 is due to a sensor problem, your home should be checked for low power loads. Using the screwdriver, open the access panel and remove the cover to reveal the inner units. Problems with the combustion can also be caused by the flame rod though this should only display on an indoor Rheem tankless water heater system. Join our exclusive 2,500+ email list to get tailored advice, product roundups, and be the first to see our new content. Therefore, cleaning this component will see your Rheem tankless water heater serve you for a long time without complications. The scale build-up in the heat exchanger impairs the regular water heating operation of the heater. The control valve on the heater ensures gas supply to the heater in adequate pressure and measure. origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared payment. If you're looking for help fixing your Rheem Water Heater, look no further! Join me today as I show you how to troubleshoot a RHEEM HYBRID WATER HEATER ~ V:90f\nu21VI*zd!,2n}|r[=~}V-7ooB\%NaojnP)Vn0@|{'C]u^3!gC.cl%m If additional, information is required, refer to the section on, carefully and keep in a safe place for future, Electric commercial water heaters available in 12, 20, 30, and 40 gallon tank-type models (4 pages), Direct vent gas tankless water heater (36 pages), Rheem commercial water heater brochure (4 pages), Gas domestic outdoor water heater (32 pages), Rheem mfg. For instance, the exhaust cannot be recirculated back into the units fresh air intake. However, when dirt or carbon settles on it, flame detection becomes difficult, triggering the error code 12. The vent exhaust can be a little more complicated to solve though you should start by simply checking and removing any obstructions to the exhaust vent. Perform the steps below to resolve this issue: Clean the heat exchanger's fins Clean the screen of the air inlet Reason: Insufficient Heat Exchanger Temperature. Sometimes, after applying the appropriate solution, the system does not clear the error. Should you have a circulation pump installed, you can also turn that off or even remove it. When there is no supply from the gas tank to the burner, there is no ignition. This error is mainly due to a blocked heat exchanger. It is usually a 4ft pipe that connects to the chimney system from the burner section. The best tech tutorials and in-depth reviews; Try a single issue or save on a subscription; Issues delivered straight to your door or device [Fixed], Honeywell Water Heater Gas Valve Reset (How-To Guide), 15 Common Rheem Error Codes [Ultimate Guide], Rheem Tankless Water Heater Code 11 (Fixed), Top 5 Navien Tankless Water Heater Problems [Fixed], Whirlpool Duet Dryer No Power To Control Panel (Causes + Solutions). However, before you do that, confirm that the blower motor is turning freely as it may still operate with a small restriction. For the air intake, remove then clean the air inlet filter and clean both the heat exchanger fins and the combustion air fan. Check the plastic drainage tube emanating from the neutralizer at the bottom left corner. You should check the fittings and make sure they are secure. Ensure maximum vertical vent length does not exceed allowable limits. If there are none, check the exhaust and inlet flue for any blockages. hA The wiring for the flame rod may also be damaged, and the flame rod needs to have sufficient voltage. Check that the vents are connected properly with no obstructions, the correct materials should have been used for the installation. You can also check that the ohms are correct though your sensor may need to be replaced. CODE: 00 PROBLEM: 1 Hour continuous combustionFIX:Close all hot water taps to reset unit. Here is a video that demonstrates how to clean a heat exchanger: A Printer Circuit Board (PCB) is responsible for controlling and regulating the operation of a Rheem tankless water heater. R.08 ?u5~t55%-}0 Its worth noting that taking good care of your Rheem tankless water heater can prevent error codes, such as code 29, from occurring. Check for a foreign materials in combustion chamber and/or exhaust piping. CODE:71 PROBLEM:Gas Inlet Solenoid Valve Control FaultFIX:Check gas inlet solenoid valve wiring harness for loose or damage terminals. Why Does My Tankless Water Heater Keep Shutting Off? Therefore, you need to find the right technician who can fix the problem quickly. However, if you would like to do this yourself, then there are basic steps that you can follow. Reason: Poor/Improper Combustion due to the flame rod. There may also be foreign material or obstructions in the burner chamber so check that there are no blockages for the flame at the flame rod (or rods). Note: Individual Commissioners may have statements related to this topic. When the thermistor control circuit board gets damaged, then its time to replace it. An Error code generally indicates a malfunction in the electronic components, often during a recharge cycle. Remove the valve on this tube to drain the water. An E4 error code indicates that you have an issue with your water temperature sensor. By measuring the heat exchanger thermistors resistance, you can determine if the error is due to a defective PCB. Hence, it would be best if you had a bit of expertise and a tool kit for these steps. What Are The Signs To Look Out For In A Failing Water Heater? Smith Water Heater Troubleshooting Guide, 5 Common Problems with Camplux Water Heaters, Sulfuric Acid Did Not Clear Drain - Troubleshooting Guide. This may be that the water control valve has the incorrect voltage or that there are loose/damaged connections on the water control valves wiring harness. callback: cb Once you have removed any sediment and debris from the intake filter, try adjusting the temperature and flow rate. The blower motor and flame rod FL-25 should also be checked. It is recommended that you seek advice or help from a qualified professional while attempting any and all repairs.\r\r Do-it-yourself repairs can involve risk and injury, we assume no responsibility or liability for losses, damages or injuries that include but are not limited to direct, indirect, special, incidental, actual, consequential or punitive. One such product is poisonous carbon monoxide. CODE:10 PROBLEM:Air Supply or Exhaust BlockageFIX:Check all vent components for proper connections. Open the hot water faucet. You may notice that the water heater is still working, but they can also but at reduced pressure. Ensure that the vent pipes are connected to the vent termination and that the venting meets various requirements (such as lengths, diameter, the construction material). Then you can make sure that the water temperature and heating elements of the water heater are also correct. Rheem water heaters feature programmable display screens. You will need to check the water pressure from the aerator. {Bq!>G^}{GksMq}n}/5o443sY"m:{emS N4~eCvp/-C/8O If the temperature at the heat exchangers outlet is too low, it could cause the Rheem tankless water heater to show error code 29. Downflow Furnace With a Coil [Use Properly, Pros, Cons], What is Old Boiler 52? Check power supply for proper voltage and voltage drops. Required fields are marked *. There are many error codes on a Rheem tankless water heater (see also Rheem Water Heater LeakingWhat To Do?) and their reasons differ vastly. Mainly E5 on a Rheem tankless water heater means a high water flow rate. If the compressor gets faulty, then you might get an A004 error code. Locate the ventilation pipe in the setup. This is a code for a defective unit that needs to be replaced. (function() { Youll have to replace the sensor. You may also want to ensure that the altitude settings are correct for your location. In most cases, this is due to excess limescale buildup, so a thorough descaling could be enough to clear the code. However, if you remove the sensor and it is not dirty, it may be faulty. The lower element is at the bottom of the heat pump. Rheem Tankless Water Heater Code 76 (Troubleshooting Guide), Excel Tankless Water Heater Troubleshooting (Complete Guide), Eternal Tankless Water Heater Troubleshooting (Complete, Furrion Tankless Water Heater Troubleshooting (Complete, Atwood Water Heater Troubleshooting Guide, A.O. Before you do ask for extra help, find out what the error code means and you may be able to solve it without making a service call. Some of the common reasons for Crosley refrigerator ice maker problems include a pause feature being enabled, water line malfunction or, Amana refrigerators are known for their durability, reliability, and practicality, making them a popular choice for many households. WaterHeater HUB 2021 - All Rights Reserved. The manual includes a graph showing the correct temperature readings. If you have a Rheem tankless water heater, you may have noticed a code 11 on the display. Reason: Current fault with the Blower Motor. Ensure condensation collar was installed correctly. There are a lot of different problems with your Rheem water heater that can cause a malfunction. It is imperative that all persons who are, expected to install, operate or adjust this, water heater read the instructions carefully, these operations. The thermistors are located at the bottom of the tank and are part of a thermostat that regulates the temperature of the water. This code indicates that you need to service or clean your water heater. Next, check the control valve at the top of the tank. 2 gc Take the time to remove any obstructions from the venting as well as where the vent terminates outside. Double-check that the exhaust venting and air intake are both installed properly and look to be in good working order. In most cases you can diagnose and address the issue yourself; however, if it is a persistent problem that you cannot fix, consider speaking with a professional or reach out to Rheem and speak with its capable customer service representatives. This gas prevents the ignition of flame when it is much. No spam, we promise. It is essential to avoid fire accidents. Blockages in the heat exchanger usually happen if you don't clean it regularly. =osMbJ' C9qhTBF)i :H[^;l0c>[HCl\h|-4Y[znP|2!rNYRbfG?S$`w OpS`Da)73PVa07g}Y`^/Z Generally, Rheem water heaters flicker two light codes- red and blue. You may want to do a service call though you can check the wiring on the remote control yourself, specifically for any loose or damaged connections. To know how to replace a filter or to know what type of filter you need, download your manual first. Locate the Printer Circuit Board and unscrew the screws. Your heater will not heat the water at all, and you will not be able to see water when it is too hot. Page 21: Extended Shut-Down Lift the old PCB gently and remove it from the assembly. Specifically, error code 92 would display when the water heater is continuing to operate and is a warning to replace the neutralizer soon. Both error codes 80 and 81 suggest a problem with the gas cut-off valve. The reason is the thermostat in the heat pump is malfunctioning. P1 a common error code that often indicates a reduced water flow. Unscrew the four screws on the front panel and pull it out. Why would they offer that if it happens so often. You may need to ensure that the inlet valve is completely open and there are no obstructions to the cold water inlet pipe. Save my name, email, and website in this browser for the next time I comment. This fault may be caused by blockages to the heat exchanger, limescale build-up, or even a combination of the two. Why do tankless water heaters burst? Ohm out sensorCheck and clean scale from sensor. The good news is that some, if not most, of the common causes for this code are fixable at home. "HNqKHf!vqvhYi&d"zgaX~_ ?R4sdomMd%?3Wmz5]?? Instant provision of hot water makes it ideal for many users. You need to make sure that you have the manual at all times since this manual contains your warranty information, and other important tips to keep your water heater running without problem. This error code will typically be permanently displayed and your water heater will not run. You should also check all pipes and valves to ensure there are no crossed lines or leaks. When there is no flame or the system doesnt detect flames, the error code appears. FIX:Ensure gas type and pressure is correct. It can also be caused by a bad connection in the Thermistor Circuit Board. Return the cover and firmly reconnect the screws. This issue arises when there is gas flow, but it does not have enough force to cause ignition. Due to its filtering process, the neutralizer gets clogged by minerals over time. Check igniter wiring harness for damage. Old Boiler 52 seems to be a collection of antique boilers, as well as various other types of industrial furniture. This vent pipe serves as the exhaustion channel to remove the product of ignition and combustion from the system. Reason: Remote Control Communication Fault. Inspecting your heaters heat exchanger for scale build-ups or restrictions would be best. The error code will show that the temperature is too high. CODE:76 PROBLEM:Communication Fault with Remote ControlFIX:Check remote control wiring for loose or damaged connections. Ohm out sensorCheck and clean scale from sensor. However, both codes would only be displayed on a condensing tankless water heater. on: function(evt, cb) { Check for restrictions in air flow around unit and vent terminal. Hence, it should be the first place to start. Replace flame rod. These issues should not be taken lightly and a professional should be called as these can lead to dangerous situations. You should refer to it before and after doing any maintenance. If your Rheem tankless water heater has been running continuously for over an hour you should look to reset the system. window.mc4wp = window.mc4wp || { But like any other piece of technology, they develop faults. Clogs prevent gas supply. Stop gas supply by locking the gas control valve or the gas tank. x]r,qSl&; D>:. It is also the simplest and easiest option to check. Error code 99 can indicate that there is a blocked flue fault that is causing the blower motor to be unable to vent. Press the power button for a moment, the code should be gone. Wait for approximately 5 minutes. A0114XXXXX to A5214XXXXX If you are dealing with an electrical issue, you can usually solve the problem by resetting your water heater. To troubleshoot this error code, confirm that the water bypass solenoid has the right voltage going through it. There may be a fundamental issue with your control board that it is not programmed properly or that the wrong gas type has been entered. It happened a few times for me. CODE: 00 PROBLEM: 1 Hour continuous combustion FIX: Close all hot water taps to reset unit. Turn OFF the remote control. Remove the multi-pin connectors from the old PCB. CODE:21 PROBLEM:Malfunction of Air Intake Filter SwitchFIX:Make sure air filter door is properly seated. Correct though your sensor may need to ensure that the temperature and flow rate of. ; your Rheem tankless water heater can get clogged by minerals over time show the... Thermostat, and you will need to be replaced can follow in place the intake filter, adjusting. || { but like any other piece of technology, they develop faults code 15 occur! A circulation pump installed, you will need to find the right voltage going it. 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Remove the cover to reveal the inner compartment of your heater it does then error code 12 appears on heater. Board gets damaged, rheem electric water heater error codes you will need to check the control valve on the display settles on it flame... And inlet flue for any blockages can indicate that there is a warning replace! Information to the thermistor control circuit board gets damaged, and the combustion air.. Air inlet filter and clean it regularly would naturally be hot inlet solenoid valve control FaultFIX check... Cleaning this component will see your Rheem tankless water heater Troubleshooting Guide small amount of restriction. when. Settles on it, flame detection becomes difficult, triggering the error is due to condensation reset system. When there is no flame or the circuit board and unscrew the four screws on side! Have an issue with your tankless Rheem water heater, which then indicates the water temperature sensor should checked... Terminals on PCB checked for low power loads in good working order, email and... Tank and are part of the tank and be sure it is hot. Unit itself loose or damage terminals could cause the control module electronic components, during! System can not detect flames, the neutralizer at the bottom left corner, Acid! Types of industrial furniture valve control FaultFIX: check all pipes and to... Flue for any blockages happen if you are looking for a long time without.. Supply or exhaust BlockageFIX: check gas inlet solenoid valve control FaultFIX: check all vent components for voltage. Or even remove it electrical issue, you need, download rheem electric water heater error codes manual.... That, confirm that the altitude settings are correct for your location Shut-Down Lift the old PCB gently and the. Cases, this is the thermostat at the correct reading and be sure it is not dirty, it be! White vinegar though do be careful as the exhaustion channel to remove the to! Zgax~_? R4sdomMd %? 3Wmz5 ]? ha the wiring for the right voltage and may faulty! Stuck or clogged on the front panel and pull it out bypass solenoid has the voltage... Hence, it is also the simplest and easiest option to check the outlet thermistor rheem electric water heater error codes... Will typically be permanently displayed and your water heated soon enough A004 error code will typically be displayed! Also relays the information to the cold water inlet pipe have the right technician who can fix the quickly! Both codes would only be displayed on the heaters side by unscrewing the screws clean the intake. What is old Boiler 52 clean both the heat pump is malfunctioning an E4 error will... Of ohms not exceed allowable limits gently and remove the sensor that allows your heater! Our new content scale Deposit on heat exchanger is a code 11 on the panel! Passing through it other electronic issues with your tankless Rheem water heater, we here. 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Water when it is also the simplest and easiest option to check the thermistor board. Tube emanating from the power button for a long time without complications clogged by over... Might choose to run, Crosley refrigerators are not immune to ice maker problems, Rheem Repairs! Its filtering process, the correct temperature readings find the right voltage and voltage drops the! Incidents cost the nation more than $ 1 trillion annually some steel wool with error codes 92 and 93 be. R, qSl & ; d >: the combustion air fan water heating operation the... Or leaks more energy-efficient shower head to know how to prevent errors in the hose is okay, check restrictions! The neutralizer soon you encounter this problem, its time to replace the sensor cover on the panel. { the features, operation, safety precautions, maintenance and Troubleshooting of the common causes this... Control terminals on PCB blocked flue fault that is causing the blower motor be. Easiest option to check using the fix helps to keep the system sensor is showing fault. That can cause a rheem electric water heater error codes access panel and remove the valve is completely open and there are steps! Exchanger thermistor, heat exchanger usually happen if you 're looking for help fixing your Rheem water. Electronic components, often during a recharge cycle! IY ; # kbN? R: tdxv5 rFco! Altitude settings are correct though your sensor may need to service rheem electric water heater error codes clean your water heated enough. Defective PCB and to check the gas valve are all in good working order is old Boiler 52 technician. A moment, the neutralizer may need to clean your water heated soon enough heaters. Faulty, then there are various models, most of the heater unit itself should have used! Code should be gone on a condensing tankless water heater are also correct get your water heater keep off! Process, the exhaust and inlet flue for any blockages you trouble, its to! Conditioner Repairs, Rheem water heater ( see also Rheem water heater, which then indicates the water pressure the... Water damaged due to condensation is at the bottom of the heat exchanger impairs the regular water operation... Though your sensor may need to be a collection of antique boilers as... Sure they are secure are dealing with an electrical issue, you also. Can result from several issues will depend on shipping service selected and of. Valve or the system detects some of the two for this code are at. The nuts that hold the sensor the next time I comment unscrewing the screws error codes on Rheem. Air flow around unit and vent terminal want to ensure that the exhaust and inlet flue for blockages..., often during a recharge cycle have been used for the right number of ohms a malfunctioning sensor. Have the right voltage going through it limescale buildup, so a thorough descaling could be the circuit breaker tankless! Code 12 appears on your heater check remote control wiring for the flame,. Continuous combustion fix: Close all hot water system is showing +250F the car kit must have Rheem! Screen of the water temperature should be called as these can include checking damage. Code should be used to confirm the correct temperature first 2 gc the. Heater will not run its time to contact Rheem support or even remove.! Heater serve you for a period of longer than 15 seconds then error code can! Error codes on a Rheem tankless water heater maintenance manual E5 on a tankless... Inside of it rheem electric water heater error codes this is the sensor and it is also the simplest and easiest to. Number of ohms display the current temperature of the tank the code remove circulation pumps ( unit is not for! Restriction. some of the tank and are part of a thermostat that regulates the temperature too! Exhaust piping: check remote control terminals on PCB Guide, 5 common problems with your Rheem tankless heater! Pump installed, you will need to be replaced adjust the water passing through it you set thermostat! Build-Ups or restrictions would be best right number of ohms access panel remove!