Rheem hot water heater has low or no hot water flow. 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. Among the common error codes is code 76, a sign of a problem with your water heater. 5. Takagi Error Codes | Troubleshooting Guide and Repair Tips, AO Smith Tankless Error Codes | Problems | Troubleshooting, John Wood Tankless Error Codes | Troubleshooting Tips, Rinnai Error Codes | Troubleshooting Rinnai Water Heaters, Tankless Water Heater Problems | Troubleshooting and Repair Tips, Noritz Error Codes Guide | Troubleshooting Noritz Water Heaters, How to Replace a Water Heater Dip Tube - DIY Installation Tips, How to Fix Water Hammer Problem | Troubleshooting Guide, Navien Water Heaters | Review and Buying Tips for 2023. Head to the electric panel and locate the water heater circuit. Continue with Recommended Cookies. Next, check the resistance of the heat exchanger thermistor. Error Code E1: This code indicates that there is insufficient water flow to the unit. A jumper wire will help you confirm the remote control wiring problem. When this error code will pop up, understand there is no ignition on your tankless water heater. One for the hot side and another for the cold side. (24 hours) C read more However, like any appliance, they can sometimes experience problems. A false flame can be attributed to the flame rod (or rods) touching the flame whenever the unit fires. Get FREE quotes from licensed Plumbers in your area today. Lastly, ensure the igniter wire harness is intact. It is also known as flue or chimney, which expels exhaust gasses out of the house. Your email address will not be published. Check the flame rod itself to see whether there are defects. If you encounter an code, it will be displayed on your Rheems digital thermostat display. As a second-generation plumber, it was easy for Anthony to get used to the technicalities of all from a tender age, Table Shower Ultimate Guide (Must Know Secrets), 3 Ways to REMOVE PVC Pipe From a FITTING (Video Review), 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. When the problem occurs, the error code is displayed on the LCD screen of the remote or user interface, so by understanding the meaning of the code, the troubleshooting gets easier. LPG users check Propane bottle level. Error Code E3: This code indicates that the temperature of the outgoing hot water is too high. Rheem Tankless Water Heater Error Code 61, Troubleshooting Tankless Water Heater Error Codes, Rheem Tankless Water Heater error code 13, Rheem Tankless Water Heater Troubleshooting Manual [Complete Guide], Bosch Tankless Water Heater Troubleshooting [A Complete Guide], Bosch Tankless Water Heater Error Codes [Ultimate Guide], Bosch Tankless Water Heater Wont Ignite [7 Easy Solutions]. If your Rheem water heater is flashing white light, it shows that your pilot light is out and the water will still be cold. Before you try anything else, reset your Rheem water heater. If this drainage system gets clogged, your tankless water heater will flash the error code 29 to prevent the burner from being flooded. Several reasons are responsible for the heater to throw this error message. What does E4 mean on a Rheem tankless water heater? After you see a code on a tankless water heater, a common first step is to reset the device. 1. Features and error codes may have changed over the years so finding an updated resource is vital to ensure that you know what to do when a fault looks to have occurred. To resolve the issue, try the following steps: Turn off the power to the water heater for 10 seconds and then back on. The neutralizer drainage ports should be clear and the neutralizer drainage line (see also 7 Awesome Tips For Sewer And Drainage Line Cleaning) outside the unit must be clear too. Rheem tankless water heater error codes result from defects. Err04 - Receiving signal from switch, but at incorrect time. Check the thermostat on the remote control; it might be set too low. First off, make sure there is enough fuel in your gas tank. Turn off the power to the water heater for 10 seconds and then back on. Once you clean or change the blower motor, follow the steps in reverse to reinstall the blower motor. When you have a problem . If it has flipped off, flip it on. 10 Common Reasons. I can turn it off and leave off for a while 30 minutes or so, then turn it back on and it'll work for a day or so. Required fields are marked *. 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. It will usually be red or black, and may be labeled reset. Code 05 indicates an Imperfect Combustion Alarm. If you encounter this, heres what you can do: Code 10 indicates that the flame has been lost on the unit. Consequently, this affects the communication between your remote control and the water heater. E5 on a Rheem Tankless Water Heater means there is a high flow rate. The most common codes include Codes 5, 11, 13 . You may need to flush the system using distilled white vinegar though do be careful as the water would naturally be hot. Every Rheem tankless water heater, either non-condensing or condensing, utilizes the computer board to monitor the heating process, adjust the parameters, and help troubleshoot the potential problems. Page 1 CONDENSING TANKLESS GAS WATER HEATER Service Manual Models 199,000Btu / 180,000Btu Natural Gas ( NG ) / Liquid Propane Gas ( LP ) WARNING If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury, or death. Reviewing ultra efficient Navien water heaters utilizing condensing and tankless technology. This can be caused by a number of things, including a clogged filter or a problem with the water supply line. If you do not feel comfortable performing this yourself then you can contact a professional to do it for you. There are a few possible causes of this problem: Tilt down the computer board, which will reveal the blower motor. Error code 05 could be triggered by an issue with the air intake or a blockage leading to the vent exhaust. Begin with slowing down the flow rate of your water heater. . Watch the following tutorial to learn how to replace the water flow sensor. Also, this warning message indicates that the unit has detected a false flame. 3. We broke down everything that will help eliminate the error message from the control panel. You can use 100-grit sandpaper to remove the carbon buildup from the flame rods. In rare cases, Rheem tankless water heater code 76 may indicate a problem with the filter capacitor. 7 Awesome Tips For Sewer And Drainage Line Cleaning, how to match wires size with circuit breaker, Hybrid Water Heaters: Everything You Need to Know. It will not rust. So, if you dont think you are up to the task, consult a professional. Rheem Tankless Water Heater displays a lot of error codes due to specific reasons. I am glad to help. A clogged heat exchanger, venting system, and air intake filter are responsible for making the ODS thermocouple defective. Check the venting on the device for any blockage and clear as necessary. When an error code is displayed on the screen and before you call the service support, do the following to reset the system, which might fix the issue: If nothing happens after resetting the unit and the error code is still visible, do the following: Cause: Limescale deposits in the heat exchanger water flow is reduced, and the temperature increases significantly. In a worst case scenario, you may need to replace the control board. 3. See if the fins on the heat exchanger are dirty and clean as necessary. There may be something blocking the inlet or outlet of the unit. It represents a water protection fault at the indoor unit. If you can solve a problem or a fault without having to make a service call then, not only will you learn more about how the water heater works, but you will likely save yourself some money. Double-check that the exhaust venting and air intake are both installed properly and look to be in good working order. If they are then you may want to contact a specialist to take a look. A faulty capacitor is usually the problem if the error code 76 flash persists after fixing the above two issues. event : evt, We will assume that the licensed plumber/installer professionally installed your Rheem tankless water heater. The pilot light for the gas heater is blue; if it isn't, then probably there is an issue. Cycle your water heater two times by turning off- then turn on- at 10 seconds intervals. Start by checking that you have gas to the unit by ensuring that all valves are in the open position. You can clean out the chamber yourself, but its best to call a professional to do it for you. Should you have a circulation pump installed, you can also turn that off or even remove it. Clogged condensate neutralizer. Then, inspect the heat exchanger fins for a clog and release the buildup. In the rest of this article, Ill discuss the causes of Rheem tankless water heater code 76. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Also, we broke down the troubleshooting steps to clear the message. From this chapter, you can learn about the most common error codes the tankless water heater shows. If needed, replace it with a new one. Increase the flow. Reason: Remote Control Communication Fault. This code indicates that the water heater is not able to properly heat the water. Remove the access panel from the front of the unit. Explore More on homedepot.com. What I recommend to you first is to clean the blower motor and its housing. The wiring for the flame rod may also be damaged, and the flame rod needs to have sufficient voltage. Our prices verses the exact same model at Homedepot.ca . } The Rheem tankless water heater code 76 may be caused by a defective remote control, faulty remote control wiring, or a faulty filter capacity. Next, access maintenance information to determine the flow rate. This error is preventable by descaling the water heater on at least once a year. This can be due to a problem with your homes wiring or plumbing, or it could be an issue with the gas line itself. 2. You could ohm out all the solenoid valves, inspect the flame rods for the correct voltage, or even replace the gas control valve altogether. The circuit breaker for the unit may have tripped. The water shutoff valve and hot water tap need to be fully open. Check that the vents are connected properly with no obstructions, the correct materials should have been used for the installation. Rheem tankless water heater starts malfunctioning over time. Your Rheem Water Heater will pop up this warning message due to the following reasons: Addressing and fixing those issues we mentioned will help you eliminate the error code from the display of the unit. However, both codes would only be displayed on a condensing tankless water heater. In my experience, in most cases, it is a false flame code because when I look through the site glass, the flame is still visible. If you dont get the appropriate voltage reading (8 to 16 VDC), you should replace the water control assembly. If the temperature is insufficiently low on the heat exchanger then you should receive error code 29 on your mid-efficiency or condensing unit. Error code 65 may necessitate calling out a specialist yet you can check for a fault yourself. The Marathon is a special water heater that has a seamless blow molded polybutene inner tank. In this guide, we will describe the common error codes this tankless water heater displays. Pipe dope may also cause a blockage inside the water flow control turbine. What Size Heat Pump Do I Need for 2000sq ft Home. Again, inspect the thermistor wiring for any damage and this is an ideal time to check then clean the ambient thermistor itself and perform a check for the correct number of ohms. Why Do You Feel Sticky After Swimming? These two, if work out of order, can cause improper combustion inside the machine. Replacing the control board is the only solution to fix this water heater issue. You must use an authentic Rheem tankless water heater replacement capacitor for efficient operation. My condensing tankless unit has been in service now for about 9 months and I recently got the "1L" code to descale. If the issue persists, it could be due to a clogged filter or sediment buildup in the unit. 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. If there is any damaged wiring, your water heater will be unable to send a signal to the control board. If there are none, check the exhaust and inlet flue for any blockages. If this sensor senses that the heat exchanger of your water heater gets overheated, it will pop up this error message. You may also want to ensure that the altitude settings are correct for your location. A false flame being detected may also necessitate a service call, yet there are certain steps to take first. By displaying a code on your tankless heater, you, or a professional, can read the code to understand what went wrong and how to fix it. We recommend you check for a broken wire or poor electrical connection. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. Error code 14 on tankless water heater means the Overheat Film Wrap sensor has activated. Cause: The gas shutoff valve is not open completely. Error Code 13 indicates Flame rod: poor or improper combustion. Heres what you should do: Related:Rheem Error 13 Ultimate Troubleshooting Guide. First off, turn the unit off at the remote controller or at the circuit breaker. If the gas valve was disconnected, reconnect it. Search. Step 1 and 3 plus b. Lets get started! Bath. You can only use an electrolytic capacitor if you know its polarity. We also break down how to clear those error codes from the display. Your water heater will flash this error message on the control panel due to: Firstly, determine whether there is a problem with the remote control wiring or the remote control itself. Check that the program chip is properly installed and that the control board recognizes the right type of gas, which could be propane or natural gas. From cleaning the aerators as well as checking the pressure and flow of the water from your hot water faucet to checking then cleaning the water inlet filter on your tankless unit.