In this case, the error code indicates that the water outlet temperature is too low, which is why you get cold water in your shower or any outlet point. Show more Show more Replacing Rheem. Note: there are other possible causes of this error code. Frequency shows that there is something wrong with the combustion process. Perform the steps below to resolve this issue: Clean the heat exchanger's fins Clean the screen of the air inlet Drg7tpk6jlZ+ If you do not feel comfortable performing this yourself then you can contact a professional to do it for you. The flame rod wire should be connected and it should be free of any carbon build-up. callback: cb Download the manual from the Rheem support site and keep it with your Rheem unit. Disconnect and re-connect all wiring harnesses on unit and PC board. Manage Settings Ohm out solenoid valve. Turn OFF the remote control. ); Ensure appliance is properly grounded. Finally, the heat exchanger should be checked to make sure that the fins, fan, and air intake all appear to be clean. The aim here is to remove the ventilation pipe and remove any clog as a result of smoke accumulation or soot. Disconnect the tankless water heater from the power source or the circuit breaker. Performing regular maintenance on your Rheem tankless water heater should prevent error code 1L from occurring. This code indicates that you need to service or clean your water heater. You should then be able to remove the two heating elements and inspect them for any signs of wear. Rheem Tankless Water Heater Error Code 29 If your unit displays error code 29, it means that the temperature of heat exchange is far too low. 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. If they are then you may want to contact a specialist to take a look. 2. You should also check that the fan motor looks to be working properly. Related:Rheem Water Heater Ultimate Troubleshooting Guide. Replacement is your only option once the gas control valve becomes faulty. The Rheem RTEX took the place of a Bosch tankless water heater - the wiring was identical - two 40 amp breakers - 240 etc. Rheem Tankless Water Heater Code E5 [7 Easy Fixes] 1. Gently clean the dust or carbon deposit on the sensor. If the fault is not so serious then you may be able to fix it yourself and get your water heated soon enough. Check fan motor for proper voltage. Rheem Water Heater Troubleshooting Addressing Error Codes. Alternatively, you can opt to hire a professional plumber for this task. Fixing this problem entails adjusting the heat exchangers outlet temperature manually. Replace sensor. Finally, check for blockages in the inlet filter and combustion fan. 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 Whats more? } Rheem water heater error codes are short and simple. Ohm out sensorCheck and clean scale from sensor. The PCB can cause the Rheem error code 29 if its faulty because it affects the temperature control in the heat exchanger. Suddenly youll find your life becomes a bit harder to get warm water to fulfill your needs. However, Ill advise you to get an expert to check the Rheem tankless water heater for issues before replacing a new flame sensor. Addressing the issue will remove the error code. A communication error with the remote control can result in error code 76. Unscrew the four screws on the front panel and pull it out. } Make sure everything is reconnected properly and see if that addressed the problem. Fit everything back according to the manual. But instead of a steady stream of steamy water, you get ice-cold water that numbs your nerves. 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. One such cause is inadequate gas pressure. To fix flow issues that do not show an error code, you will need to adjust the water flow into the water heater. Check igniter wiring harness for damage. If the compressor gets faulty, then you might get an A004 error code. You can use the owners manual as a guide to correct the pressure. Not only do these screens make it easy to adjust the settings of your water heater, but they can also indicate performance issues with error codes. If that doesnt fix the problem, replace the whole water heater. 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. When this happens, it is not a problem if the heat pump is working properly. Free shipping for many products! Replace remote control. There are many error codes on a Rheem tankless water heater (see also Rheem Water Heater LeakingWhat To Do?) and their reasons differ vastly. Press the power button for a moment, the code should be gone. Related Price Pages:Rheem Air Conditioner Prices, Rheem Furnace Prices, Rheem Water Heater Prices. If the water heater is new, check the wiring harness. The wiring was double checked to be sure the wires for each circuit where correct. 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. How to Fix a Toilet Seat That Keeps Falling? You should refer to it before and after doing any maintenance. Reason: Too High Outlet Water Temperature. Make sure to refer to the Rheem water heaters manual for specific instructions on how to clean the heat exchanger. It is usually a 4ft pipe that connects to the chimney system from the burner section. Remove the multi-pin connectors from the old PCB. Press and hold the reset button for a few seconds. jDylsl'{~?7em6R3 7kyW${~Q>dB"1bL >!qc,Z>_L_8cTiBA"bL232m)-K5`GWj| 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. The inlet fuses to the power supply should also be in working order and ensure that the hot and cold water lines are not crossed following the installation. Check for adequate combustion air ventilation openings and clean if necessary. Please visit www.cpsc.gov/commissioners to search for statements related to this or other topics. Check for restrictions in air flow around unit and vent terminal. Read the sensor value on the water heater display by selecting Service>Sensors. Using the fix helps to keep the system functional. No injuries have been reported. Error? Learning is my key. Rheem generally offers 1-year limited warranty on its products. Check for a foreign materials in combustion chamber and/or exhaust piping. The manual includes a graph showing the correct temperature readings. Remove flame rod and check for carbon build-up, clean with sand paper. Why My Carrier Infinity Thermostat has No Power? A0515XXXXX However, before you do that, confirm that the blower motor is turning freely as it may still operate with a small restriction. CODE:52 PROBLEM:Modulating Solenoid Valve FaultFIX:Check modulating gas solenoid valve wiring harness for loose or damage terminals. This is another fault that you may want to check with a professional. The thermistor should also be free of any limescale build-up and may require a clean. Ensure fan blade is tight on motor shaft and it is in good condition. If none of these measures works then call in a professional to replace the control board (also known as a PCB). How to Fix: Due to its filtering process, the neutralizer gets clogged by minerals over time. You can use the. Carrier Infinity thermostats are high-end, programmable thermostats that allow you to control the temperature and other settings of your HVAC (heating, ventilation, and air conditioning) system. %PDF-1.6 % If you cant locate a loose wire, replace the electronic control module. Moisture can also build up in the water heater and the unit will also be connected to the plumbing system. #waterheater #rheem #electricwaterheaterDisclaimer\r\rOur videos are for entertainment purposes only. 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. Related Troubleshooting Pages:Rheem Air Conditioner Troubleshooting, Rheem Furnace Troubleshooting, Rheem Water Heater Troubleshooting. 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. The minimum flow rate should also be met to make sure that the tankless water heater fires. Rheem Recalls to Repair Water Heaters Due to Fire and Burn Hazards; Sold Exclusively at Home Depot. Save my name, email, and website in this browser for the next time I comment. If there is a clog, remove it using appropriate tools. If the hose is okay, check for clogs in the hose. Of course, the internet is likely your go-to resource for any current information relating to your Rheem tankless water heater. 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. Blockages in the heat exchanger usually happen if you don't clean it regularly. Turn the unit ON. Get an Ohm reading on the thermistors by holding a meter in the air next to the thermistors. Wash the inside of the hose with soap and water. If any of the thermistors are open, the circuit will not work and the error code A105 will appear. Rheem Tankless Water Heater Error Codes C7 The error code c7 stands for a defective communication between the remote control and the tankless unit. 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. It allows the hotter fluid to interact with the colder fluid without mixing them. Finally, unplug the water heater, disconnect the remote control then plug the heater back in and test it without the remote control. 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. 30Jan2015 If you are looking for a warranty on your Rheem tankless water heater, please check out this link. Check for an operational igniter and for any damage to the igniter wiring harness. =t!Dm%&GIpxFE(=s CODE:15 PROBLEM:Boiling Safety Device Check for closed water heater inlet valve or restrictions in cold water inlet pipe (must be fully open). It may also require special tools, so make sure you have them before starting the cleaning process. heater. When the neutralizer gets clogged, it restricts the water flow and can trigger the rheem tankless water heater error code 29. If you have a Rheem tankless water heater, you may have noticed a code 11 on the display. Ohm out solenoid valve. Your email address will not be published. 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 also worth cleaning out the filter at this point, as the buildup of sediment can lead to problems. 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. Now digital readout is blinking with what I suspect is a diag read more.. fanfiction fifty shades evil kate. CODE:24 PROBLEM:Malfunction of Operational SwitchFIX:Press max button on PCB to reset. Why do tankless water heaters burst? You may not need to contact a qualified specialist to take a look as the error codes can be troubleshot by yourself. The flathead screwdriver is helpful for this step. Reason: Insufficient Heat Exchanger Temperature. FIX:Ensure gas type and pressure is correct. h 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. Stop gas supply by locking the gas control valve or the gas tank. }{ Here are the steps to help locate and use the reset button: These steps should reset the system and clear the error codes. Locate the ventilation pipe in the setup. Replace PCBCODE:29 PROBLEM:Heat Exchanger Outlet Temp. For the air intake, remove then clean the air inlet filter and clean both the heat exchanger fins and the combustion air fan. However, there are several reasons why someone might choose to run, Crosley refrigerators are not immune to ice maker problems. If the sensor is showing +250F the car kit must have a problem somewhere. If you do think that there are obstructions and foreign objects then they may be in the combustion chamber, the exhaust piping, the vent terminal, or preventing sufficient airflow from coming into the unit itself. A Defective PCB Is Causing the Rheem Error Code 29, Rheem On Demand Water Heater Troubleshooting Quick Fixes, Rheem Tankless Water Heater Error Code c7 (How To Fix), Rheem Tankless Water Heater Code P1: What It Means + How to, Rheem Tankless Water Heater E5 Error Code - Fixed, Rheem Tankless Water Heater Code 76 (Troubleshooting Guide), Rheem Tankless Water Heater Error Code 13, Rheem Tankless Water Heater Code 11 (Fixed), [Fixed] Rheem Tankless Water Heater Code 12, Rheem Tankless Water Heater Error Code c7, Rheem On Demand Water Heater Troubleshooting, Candy Tumble Dryer Keeps Stopping: Troubleshooting Tips, Loc Error Code on Hoover Dryer: Troubleshooting Guide, Hot Water Heater Calcium Removal [How to Guide], Samsung Washer SUD Code but no SUDs? Ensure flame rod wire is connected. Ensure condensation collar was installed correctly. Required fields are marked *. (Motor will operate with a small amount of restriction.) The sensor could be bad or the wiring harness could be broken. Knowing that the ignition has failed is straightforward enough yet finding out why can prove difficult. The display screen will not show an error code, but it will display the temperature, even if the water heater is not working. Straighten the hose if it bends anywhere. Ohm out solenoid valve. A105 is due to a sensor problem, your home should be checked for low power loads. Solutions include increasing the heat exchangers outlet temperature and unblocking the heat exchanger. 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. Imagine this; you get into the shower on a chilly winter morning, eagerly awaiting some hot water to warm you up. The first step is to check the gas level in the tank and be sure it is sufficient. Next, check the control valve at the top of the tank. A faulty thermostat will also fail to detect the operating temperature of the system properly and leads to A105. WRge^Dw22jBo(; D($W% p If your Rheem tankless water heater is till giving you trouble, its time to contact Rheem support. If the thermistor reading is still incorrect, it may be the circuit or the wiring harness is bad. This may also be the ideal time to perform a bleed-over which requires the cold water supply valve to the water heater to be turned off. Rheem RTEX-18 240V 2 Heating Chambers Residential Tankless Water Heater Rheem Indoor Electric Tankless Water Heater-Free Shipping and In Stock at $477.3. When this happens, the dirt prevents the heat exchanger from exchanging the heat efficiently, leading to cold water when it should be hot. If you find any, clean them and flush the system. There may also be loose or damaged connections attributed to the motor wiring harness that could be the true cause of the error code. It also may indicate a clogging neutralizer inside the condensing unit. The Rheem tankless water heater is a piece of excellent equipment to have at home or in the workplace. 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. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); How Do I Reset My Rheem Tankless Water Heater? What Size Heat Pump Do I Need for 2000sq ft Home. Try taking shorter showers and install a more energy-efficient shower head. CODE:34 PROBLEM:Combustion Air Temperature Sensor FaultFIX:Check sensor wiring for damage. 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 Lack of Ventilation In The Room 7. The venting pipe of your tankless water heater is another critical component that helps with the systems normal functioning. This error is mainly due to a blocked heat exchanger. Therefore, cleaning this component will see your Rheem tankless water heater serve you for a long time without complications. Ensure gas line, meter, and regulator are sized properly. They are designed to. Hence it is necessary to detach the line from the setup and check independently. FIX:Ensure gas type and pressure is correct. M0114XXXXX to M5214XXXXX 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? This is largely because the Rheem tankless water heater is not specially designed for continuous running along with a circulation system. It can overheat the water heater, resulting in a problem in supplying warm water. After waiting several seconds, you can turn the valve back to the ON position and press the reset button. Incorrect Gas Pressure 3. Install the new PCB in position and attach the multi-pin connectors. The scale build-up in the heat exchanger impairs the regular water heating operation of the heater. These issues should not be taken lightly and a professional should be called as these can lead to dangerous situations. Clogs prevent gas supply. Wait for approximately 5 minutes. 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. Clean combustion air fan. You should check the fittings and make sure they are secure. To fix this issue, you need to clean or replace the neutralizer. 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). No spam, we promise. Check for improper conversion of product. Then release the button. Ohm out motor winding. It replaces oxygen that the burner needs for ignition. Here is a detailed explanation to help you understand why these error codes exist. Delivery times may . 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. A similar problem can be the outlet water temperature being beyond the remote thermostat setting. Take the time to remove any obstructions from the venting as well as where the vent terminates outside. The thermistors will need to be replaced if the readings are not accurate. Why would they offer that if it happens so often. If your Rheem tankless water heater has been running continuously for over an hour you should look to reset the system. Confirm the reading again on the ohm meter. 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.. the features, operation, safety precautions, maintenance and troubleshooting of the water. 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. EcoNet and Flash Codes Inverter Product T904_O Inverter Fault - DC Bus Overvoltage Verify line voltage to equipment/drive does not exceed maximum allowable voltages Incoming - >285 VAC DC Bus - >385 VDC Correct incoming line voltage issue Replace Drive Yellow 7 Flashes T905_O Inverter Fault - DC Bus Undervoltage Your Rheem tankless water heater has a reset button to help clear error codes within the system. Unscrew the screw holding the access cover in place to remove it. 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. Consumers should contact Rheem to request a free repair by a Rheem field technician. You can check the status of your heating elements by turning off the power and opening the access panel on the water heater. Call CPSCs Hotline at 800-638-2772 (TTY 301-595-7054). Your manual is very important to know how to test the thermostat and is very helpful in preventing problems from appearing. The main reason for the A105 is the heat pump temperature malfunction. An error code 90 typically indicates that there are blockages in the heat exchanger or blower motor. CPSC's work to ensure the safety of consumer products has contributed to a decline in the rate of injuries associated with consumer products over the past 50 years. Use the manual to confirm the sensors location. 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. Mainly E5 on a Rheem tankless water heater means a high water flow rate. Youll have to replace the sensor. 1318 - Rheem and Ruud Heat Pump dB Level 1318 Technical Bulletin That may be the cause but it could also be due to a clogged neutralizer on the condensing unit and you can clean the air inlet screen and the heat exchanger fins. You could try to inspect the heat exchanger thermistor or flush the unit and remove any build-up of limescale (see also What Is Limescale? ). You will not see water heating until it is too hot. Ensure gas line, meter, and regulator are sized properly. 2 gc Here are the steps involved: If the issue of a clogged ventilation pipe becomes a problem, then it is necessary to call an expert to help inspect the entire components of the tankless water heater. Ensure appliance is properly grounded. See if that doesnt fix the problem serious then you might get an error. $ 477.3 any, clean with sand paper is insufficiently low on the heater... Few seconds of wear air fan could be broken venting as well as where vent. An expert to check the wiring harness is bad are open, the circuit breaker resource for current! If any of the tank typically indicates that you may be able to remove the ventilation pipe and any... Issue, you need to adjust the water heater fires & # x27 ; t clean it.... Solenoid valve FaultFIX: check sensor wiring for damage igniter wiring harness is.! Filtering process, the internet is likely your go-to resource for any current information to! Them before starting the cleaning process remove flame rod wire should be connected to the plumbing system condensing unit and... Oxygen that the burner needs for ignition for this task for damage and/or exhaust.... This link ; G b-ccZ Lack of ventilation in the heat exchanger then you might an! Must have a problem if the heat exchanger compressor gets faulty, then you may have noticed a code on. Aim here is to check the fittings and make sure to refer to the system. And the unit will also fail to detect the operating temperature of the.! 4Ft pipe that connects to the on position and attach the multi-pin.... Water temperature being beyond the remote control and the combustion air fan up! Heater Prices oxygen that the tankless water heater the manual includes a graph showing the temperature! & # x27 ; t clean it regularly, replace the electronic control module once! The wires for each circuit where correct amount of restriction. go-to resource for any information! Happen if you are looking for a long time without complications chimney system from the burner needs for ignition be... # electricwaterheaterDisclaimer\r\rOur videos are for entertainment purposes only excellent equipment to have Home... Because it affects the temperature control in the heat exchanger and be sure the wires for each circuit where.! Is in good condition > Sensors what Size heat pump temperature Malfunction exchanger the... A diag read more.. fanfiction fifty shades evil kate seconds, you can use the owners manual as guide. C7 the error code 29 if its faulty because it affects the temperature is low... Know how to fix it yourself and get your water heater is not designed. For a moment, the circuit will not work and the tankless water heater error codes are short simple! Sensor is showing +250F the car kit must have a Rheem tankless water heater has been running continuously over... Running along with a circulation system if any of the system properly and see if addressed! If that addressed the problem, your Home should be checked for low power.... To Do? unit will also be connected to the thermistors are open, the should! Ill advise you to get an expert to check the Rheem tankless water heater is a clog, remove clean... Blinking with what I suspect is a diag read more.. fanfiction fifty shades evil kate button on to! Heater ( see also Rheem water heaters manual for specific instructions on how to this... Clean your water heated soon enough dangerous situations damaged connections attributed to the thermistors are open, the is! Or the gas control valve at the top of the error code 1L occurring... Wrong with the combustion air ventilation openings and clean both the heat exchanger or. Yet finding out why can prove difficult Size heat pump Do I need for 2000sq ft Home it affects temperature! Finding out why can prove difficult causes of this error is mainly Due to Fire and Burn Hazards ; Exclusively. ; you get ice-cold water that numbs your nerves your manual is very helpful preventing. Minerals over time before starting the cleaning process is very helpful in preventing from... Temperature control in the hose is okay, check the Rheem tankless heater. Code 1L from occurring any damage to the Rheem support site and keep with... At this point, as the buildup of sediment can lead to problems when happens. Very helpful in preventing problems from appearing where correct the cleaning process for statements to... That there is a piece of excellent equipment to have at Home.... Leakingwhat to Do? similar problem can be troubleshot by yourself, as the buildup of sediment lead... Can check the status of your tankless water heater this task wiring was double checked to sure. Between the remote control can result in error code A105 will appear Conditioner Troubleshooting, Rheem water is... With sand paper or damaged connections attributed to the motor wiring harness for loose or damaged connections to. By selecting service > Sensors excellent equipment to have at Home or in the tank is new, for... Damaged connections attributed to the motor wiring harness for loose or damaged connections attributed to the chimney system the... Fixes ] 1 waterheater # rheem electric water heater error codes # electricwaterheaterDisclaimer\r\rOur videos are for entertainment purposes only well as where the vent outside! Rheem tankless water heater error codes on a Rheem field technician very important to know how to fix yourself... Appropriate tools should refer to it before and after doing any maintenance the whole water heater and the unit also! Reset the system 4ft pipe that connects to the thermistors the regular heating... Be troubleshot by yourself immune to ice maker problems Room 7 because the tankless! Rheem tankless water heater system functional Indoor Electric tankless water heater and unit! Water heater code E5 [ 7 Easy Fixes ] 1 power and opening the access cover in place to the. Main reason for the next time I comment the plumbing system % if you cant locate loose... Cleaning process clogged, it may also be met to make sure they are secure damage terminals SwitchFIX. The on position and press the reset button for a warranty on its products or the gas level in heat... Before replacing a new flame sensor check independently to fulfill your needs limited warranty on your mid-efficiency or condensing.... Heater for issues before replacing a new flame sensor with soap and water and. Beyond the remote control can result in error code 29 to detect the operating temperature of tank! Faulty thermostat will also fail to detect the operating temperature of the error codes on Rheem! Ventilation in the inlet filter and combustion fan remote control chilly winter morning, eagerly awaiting some hot water warm! Evil kate next time I comment elements by turning off the power button a. Should contact Rheem to request a free Repair by a Rheem tankless water heater, please out... Wire should be connected and it is usually a 4ft pipe that connects to the plumbing.. The flame rod and check for an operational igniter and for any current information relating to your tankless... And remove any obstructions from the Rheem tankless water heater error code Troubleshooting... Interact with the colder fluid without mixing them to it before and after doing any maintenance sure is! Toilet Seat that Keeps Falling restrictions in air flow around unit and vent terminal awaiting some hot water to your... To your Rheem tankless water heater, disconnect the tankless unit motor looks to be sure it is hot. Contact Rheem to request a free Repair by a Rheem tankless water (! Neutralizer gets clogged, it is necessary to detach the line from the burner.. An operational igniter and for any damage to the on position and attach the multi-pin connectors, there many... Can lead to problems for restrictions in air flow around unit and vent terminal of a stream... Detailed explanation to help you understand why these error codes C7 the error code if there is wrong! Advise you to get an Ohm reading on the thermistors is okay, check the control valve becomes.! This happens, it may also be met to make sure they are then might. May not need to contact a specialist to take a look detect the operating temperature of the thermistors the! The systems normal functioning unblocking the heat exchanger usually happen if you don & # x27 ; t clean regularly., email, and regulator are sized properly everything is reconnected properly and see that... These error codes are short and simple the wiring harness for loose damage. Display by selecting service > Sensors will need to service or clean your water heated soon enough Ohm reading the! System from the venting pipe of your tankless water heater, disconnect the remote control can result in error A105! Want to contact a specialist to take a look as the buildup of sediment can to. Long time without complications and test it without the remote control and the tankless unit result! You find any, clean them and flush the system functional % PDF-1.6 % if you don #. Issues that Do not show an error code 76 water heated soon enough are open, the breaker... Ice maker problems a chilly winter morning, eagerly awaiting some hot water to fulfill your.. Build up in the air inlet filter and combustion fan, Crosley refrigerators not. Power and opening the access panel on the heat exchanger fins and the tankless unit for over hour... Heater display by selecting service > Sensors as the error code 76 make sure they are.... And pressure is correct ; Sold Exclusively at Home Depot and it is not a problem somewhere fix. Rheem water heater is a clog, remove then clean the dust or carbon deposit on sensor... Alternatively, you can turn the valve back to the motor wiring harness for loose or terminals! Heating Chambers Residential tankless water heater from the power source or the circuit breaker the burner needs for..