Replace PCB. You may need to flush the system using distilled white vinegar though do be careful as the water would naturally be hot. Disconnect remote control. It is a necessary step after fixing any diagnostic problem. If the water pressure is low, the water heater is making strange noises, and keeps on coming up with a variety of error codes then it may be time to replace it. It should be replaced as soon as possible. If none of these measures works then call in a professional to replace the control board (also known as a PCB). Drg7tpk6jlZ+ If you find a loose wire, re-route it, then tighten it. Despite their outstanding reputation, sometimes users will encounter some technical difficulties. %PDF-1.6 % If the sensor is showing +250F the car kit must have a problem somewhere. Linking to this external site does not constitute an endorsement of the site or the information it contains by CPSC or any of its employees. x]r,qSl&; D>:. Open the breaker panel and turn off the heaters breaker. The most typical problem with a water heater tends to be a water leak which can be common due to how many components come in contact with water. Bypass remote control cable by connecting remote control directly to remote control terminals on PCB. WaterHeater HUB 2021 - All Rights Reserved. Reset your Rheem water heater ( press the 'min' and 'max' buttons on the control board). 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. If the temperature at the heat exchangers outlet is too low, it could cause the Rheem tankless water heater to show error code 29. A Blocked Heat Exchanger Is Behind the Code 29 Error, 4. This issue arises when there is gas flow, but it does not have enough force to cause ignition. The actual reset button is located just above the units thermostat, and it will be labeled Reset Button and be bright red. The error code will show that the temperature is too high. Rheem water heater error codes are short and simple. Their tankless water heaters are as user-friendly and durable as possible, so it is no surprise that many homeowners rely on them for their hot water needs. Check for adequate combustion air ventilation openings and clean if necessary. Learning the error codes of your Rheem tankless water heater may seem exhaustive yet can prove to save you money. Error Code 29 The heat exchanger's outlet temperature is too low. Try connecting the remote control to the remote connection directly which is at the bottom of the water heater, though the cable may be the problem and could be replaced. Open a hot water water heater before draining water. Reasons for Rheem Water Heater Error Code A105. If the thermistor reading is still incorrect, it may be the circuit or the wiring harness is bad. Related Error Code Pages:Rheem Air Conditioner Error Codes, Rheem Furnace Error Codes, Rheem Water Heater Error Codes. If there are air flow restrictions surrounding the unit or obstructions at the vent terminal then this could also result in an error code 34. Therefore, its best to hire a professional for this job to ensure they do it correctlyto prevent further damage to the heater. The PCB can cause the Rheem error code 29 if its faulty because it affects the temperature control in the heat exchanger. 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. Finally, check for blockages in the inlet filter and combustion fan. 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. You should also check all pipes and valves to ensure there are no crossed lines or leaks. It is essential to avoid fire accidents. Remove the top of the water heater. Recommended products with links may be commission based when products are purchased from them. 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. Why would they offer that if it happens so often. There is a good chance that the blockage could be due to an improperly installed vent. 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. Get an Ohm reading on the thermistors by holding a meter in the air next to the thermistors. Jws ~|A@@B.'@P*b`$c Generally, the heat pump heats the water. You may wish to review the privacy policy of the external site as its information collection practices may differ from ours. You also learn how to prevent errors in the future. Recalled Rheem brand Performance Platinum electric water heater. In most cases, this is due to excess limescale buildup, so a thorough descaling could be enough to clear the code. Error code 65 may necessitate calling out a specialist yet you can check for a fault yourself. The Rheem tankless water heater is a piece of excellent equipment to have at home or in the workplace. Err05 - Control Board is not accepting signal from switch. Download the manual from the Rheem support site and keep it with your Rheem unit. Ensure maximum vertical vent length does not exceed allowable limits. From what I have seen online, I believe these codes are Don A. HVAC/R, EPA Universal 86 read more GaryW1113 HVAC Journeyman 189 satisfied customers My Rheem gladiator electric water heater alarm went off BillyHvac 17,153 satisfied customers You can also check that the ohms are correct though your sensor may need to be replaced. The wiring was double checked to be sure the wires for each circuit where correct. installation and adjustment of the water heater; and two, for the owneroperator, to explain. The water heater should be working properly again. If there is a problem, the water heater will display an error code A105. An error code 90 typically indicates that there are blockages in the heat exchanger or blower motor. Rheem generally offers 1-year limited warranty on its products. Ensure flame rod wire is connected. Your manual will also help you know how to test the thermostat so you can prevent this. We will now walk you through some of the most common error codes and explain how you can address them: This code usually signifies a water flow issue. The thermistors will need to be replaced if the readings are not accurate. >B#aVfX?x*BUBU1nfrdQxG}Ap~cPo@8 %Kv\ The venting should also be adequately sealed and you may want it inspected by an expert. 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. California Power Companies Propose Fixed-Rate Charge Based on Income: Good or Bad? Before you make a service call for error code 51, check for any loose/damaged terminals on the wiring harness for the gas control valve. Call CPSCs Hotline at 800-638-2772 (TTY 301-595-7054). The Rheem RTEX took the place of a Bosch tankless water heater - the wiring was identical - two 40 amp breakers - 240 etc. 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, AO Smith Tankless Error Codes: Problems And Troubleshooting, Where You Can Find Current Information For Your Rheem Tankless Water Heater, The Error Codes On A Rheem Tankless Water Heater. They were up-front about not being familiar with this model but followed the manufacturers installation instructions. It happened a few times for me. Check the electronic control module for signs of corrosion or malfunction. Why is my Rheem water heater beeping? Ensure proper venting material was installed. If this does not correct the problem, inspect the fan motors and make sure they are not caked in dust, as this can trigger the error code. { It won't always be easy, but always try to do what's right. Press the power button for a moment, the code should be gone. If checking that the fan blade is tightly fitted on the motor shaft and spinning freely does not work then you may want to replace the sensor. Therefore, cleaning this component will see your Rheem tankless water heater serve you for a long time without complications. This error code will typically be permanently displayed and your water heater will not run. After waiting several seconds, you can turn the valve back to the ON position and press the reset button. When it malfunctions, the unit will have a higher temperature than normal. Install the new PCB in position and attach the multi-pin connectors. Clogged Exhaust 6. Your Rheem tankless water heater has a reset button to help clear error codes within the system. Join our exclusive 2,500+ email list to get tailored advice, product roundups, and be the first to see our new content. You should check the fittings and make sure they are secure. 03Mar2015 13Apr2015, A0114XXXXX to A5214XXXXX A flathead screwdriver is a primary tool here. If you are using an electric tankless water heater, you can also switch to a gas-powered option, as these tend to be more capable when it comes to dealing with significant hot water requirements. Rheem water heaters feature programmable display screens. You may notice that the water heater is still working, but they can also but at reduced pressure. Press min button on PCB to reset. Rheem Water Heater Error Codes If you're looking for help fixing your Rheem Water Heater, look no further! Where You Can Find Current Information For Your Rheem Tankless Water Heater. If there is a clog, remove it using appropriate tools. A simple check of all the connections in the gas supply to the burner will help you detect the problem. If the compressor gets faulty, then you might get an A004 error code. When there is no flame or the system doesnt detect flames, the error code appears. Lack of Ventilation In The Room 7. endstream endobj 81 0 obj <>stream Downflow Furnace With a Coil [Use Properly, Pros, Cons], What is Old Boiler 52? The good news is that some, if not most, of the common causes for this code are fixable at home. How to Get a Rheem Water Heater Maintenance Manual? Rheem Recalls to Repair Water Heaters Due to Fire and Burn Hazards; Sold Exclusively at Home Depot. If you have a stainless-steel water heater, replace the electronic control module. Bleed all air from gas lines. Your manual is very important to know how to test the thermostat and is very helpful in preventing problems from appearing. ms~MB#z-+;okS3)jEy'Q@z4{2Ul00)P;h@|p ,]~ KK_rEP ^..Mc>h[bFxw5]}87-hZ)#;T dI3fny@9{'zAHi>05Qy&/uMfPdl/*c\7-vw}m_]HCpu-/}Mu?;G b-ccZ Just like error code 65, you should also inspect the tankless water heater for any loose or damaged connections on the wiring harness of the water bypass valve. Fortunately, as a DIYer, you can quickly solve most of these issues without extensive technical knowledge. :Pxw=1?_=P 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.. Blockages in the heat exchanger usually happen if you dont clean it regularly. This video will show you how to clear the A102 water sensing code on a Rheem. 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. )~RT)EqpE3-b I a:*7@B@^s It is a significant upgrade to the version that uses tanks and delays water supply till its hot. Fixing this problem entails adjusting the heat exchangers outlet temperature manually. It allows the hotter fluid to interact with the colder fluid without mixing them. })(); Anthony Barnes is the founder of Water Heater Hub and a second-generation plumber by profession. CODE:05 PROBLEM:Imperfect Combustion AlarmFIX:Clean air inlet filter. You will need to check the water pressure from the aerator. In this guide, we will look at where you can find the most current information for your Rheem tankless water heater and look at the error codes (see also AO Smith Tankless Error Codes: Problems And Troubleshooting) in detail. Reason: Current fault with the Blower Motor. Related Parts Pages:Rheem Air Conditioner Parts, Rheem Furnace Parts, Rheem Water Heater Parts. Check gas solenoid valves for open or short circuits. However, with some tools, steady hands, and caution, you can run some diagnostic steps and fix this issue. Addressing the issue will remove the error code. FIX:Ensure gas type and pressure is correct. An example of data being processed may be a unique identifier stored in a cookie. listeners: [], A very similar error code appears when the thermostat is set too low. Press and hold the reset button for a few seconds. Once you have removed any sediment and debris from the intake filter, try adjusting the temperature and flow rate. It is responsible for measuring the power load in your machine and determining how to operate it. Replace the thermistor or replace the entire wiring harness if the reading is good. The problem is most likely the fault. If it is faulty, then there is no supply to the ignition, even if there is a supply from the gas tank. The wrong temperature for a particular thermistor will cause the thermistor to get too hot or too cold. Continue with Recommended Cookies. Smith Water Heater Troubleshooting Guide, 5 Common Problems with Camplux Water Heaters, Sulfuric Acid Did Not Clear Drain - Troubleshooting Guide. Rheem Tankless Water Heater Error Codes C7 The error code c7 stands for a defective communication between the remote control and the tankless unit. You could also check the outlet thermistor, heat exchanger thermistor, and the gas valve are all in good working order. It can also mean a bad combustion alarm, a high water flow rate, a motor problem in the water heater or the voltage of the power supply is very low, and a pilot or main burner valve problem. CODE:52 PROBLEM:Modulating Solenoid Valve FaultFIX:Check modulating gas solenoid valve wiring harness for loose or damage terminals. There should definitely be no obstructions for the exhaust termination and flue inlet, check that both have the right amount of clearance space too. If this does not work, visually inspect the flow sensor and contact the Rheem customer service line if you notice a sensor issue. Try taking shorter showers and install a more energy-efficient shower head. The error code A105 will be cleared if you replace the thermistors. It is also worth cleaning out the filter at this point, as the buildup of sediment can lead to problems. The A105 code shows when the Rheem water heater has a temperature malfunction of the heat pump. This could cause the control module to issue an error code. =osMbJ' C9qhTBF)i :H[^;l0c>[HCl\h|-4Y[znP|2!rNYRbfG?S$`w OpS`Da)73PVa07g}Y`^/Z Either there is a blockage somewhere in the water lines, or the pipes have not been properly connected. If the thermistor control circuit board is in good condition, then a problem with the wiring should be investigated. 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The display screen will not show an error code, but it will display the temperature, even if the water heater is not working. ]LVJvHQZUU{\!IY;#kbN?R:tdxv5} rFco Water can corrode your water heater and result in tiny fractures or cracks that will inevitably lead to a leak. If the temperature is insufficiently low on the heat exchanger then you should receive error code 29 on your mid-efficiency or condensing unit. It is a significant upgrade to the version that uses tanks and delays water supply till it's hot. The link you selected is for a destination outside of the Federal Government. (Motor will operate with a small amount of restriction.) CODE:12 PROBLEM:Flame Failure Ensure you have gas to the appliance. When doing the thermostat test, do not forget to set the thermostat at the correct temperature. Your water heater could be in need of a service. The aim here is to remove the ventilation pipe and remove any clog as a result of smoke accumulation or soot. But as long as you take care of the unit, it can last a long time. CODE:14 PROBLEM:Overheat Wrap Fault Ensure high fire and low fire manifold pressure are correct. Make sure that you set the thermostat at the correct temperature first. If that does not work then you could confirm that the tankless unit is correctly grounded. If nothing helps, then an expert would have to replace the control board. Open the hot water faucets in your home and if there is a steady flow of water from those faucets then you may have a bleed-over problem which would require a service call. Rheem water heater maintenance manual is the most useful manual you need to keep your water heater running perfectly. We have a rheem electric tankless water heater with E5 code and are not getting hot water. Required fields are marked *. To fix this issue, you need to clean or replace the neutralizer. This code indicates that the unit is in standby mode and is not providing hot water. The flathead screwdriver is helpful for this step. Unscrew the panel cover to access the reset button. Delivery times may . However, Ill advise you to get an expert to check the Rheem tankless water heater for issues before replacing a new flame sensor. You could increase the flow rate or simply adjust the temperature though if all of these potential solutions fail then there may be a problem with the water flow sensor itself which needs to be replaced. Now its time to confirm the reading on the Ohm chart. It can overheat the water heater, resulting in a problem in supplying warm water. Here is a detailed explanation to help you understand why these error codes exist. CODE:21 PROBLEM:Malfunction of Air Intake Filter SwitchFIX:Make sure air filter door is properly seated.