Secondly, inspect the exhaust vent or air intake pipe for a clog. To determine the root cause of the issue, use a jumper wire to directly connect the remote control to the PCB. Whenever you are encountering this error code, look for the cracked or broken heat exchangers as it is the leading factor for the faulty film wrap sensor. How to Fix: Turn off all hot water taps to reset the unit. Rheem Tankless Water Heater Error Code 12, 10. condition: new make / manufacturer: Rheem . Rheem Tankless Water Heater Error Code 29, 11. Professional Classic tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications. Clogged Exhaust 6. Check the air inlet filter, clean it, and ensure the vent pipes are connected correctly. If needed, replace the unit. Phase #3: First up, remove the screws that keep the burner to the combustion chamber in place as you can see in the picture below. Follow these steps to test your Rheem tankless water heater's circuit board: Disconnect the power source from the water heater. After removing the front panel cover, press the air intake switch and ensure it operates correctly. Check if the maintenance information displays the heat exchangers temperature. We will assume that the licensed plumber/installer professionally installed your Rheem tankless water heater. Finally, ensure the Molex connector is in good condition. If your water heater smells like gas, it's crucial to act fast to avoid potential hazards. If there is enough current running, you may need to replace the burner assembly; otherwise, replace the PCB. Rheem error code IL indicates a possible scale buildup in the heat exchanger. The error code c7 stands for a defective communication between the remote control and the tankless unit. Below, we will show you how to fix those issues to clear away the error message. Turn the power back on and test the water heater. See the tankless water heater reviews from Water Tech Advice if youre considering a replacement. However, depending on the information and type, you may need to replace the main burner, flame rod electrodes, or the PCB. Rheem error code 14 means the overheat film wrap has been activated, usually caused by a hot spot. When this error code will pop up, understand there is no ignition on your tankless water heater. Defective Molex connection> Inspect the Molex connections at the PCB.> Remove the connectors and check the resistance going through them. Another problem that might occur when the water flow is reduced is the excessive temperature of the heat exchanger. c. Remove one ceramic heater plug. Find the most common problems and see how to fix issues. A clogged heat exchanger, venting system, and air intake filter are responsible for making the ODS thermocouple defective. What does E4 mean on a Rheem tankless water heater? Otherwise, use the LP gas to power your water heater. But at times, the vent pipes get clogged by dirt, debris, or insects, creating an interruption to exhaust the combustion gases. Rheem Tankless Water Heater Error Codes C7, 03. Rheem Tankless Water Heater Error Code 61, Rheem Tankless Water Heater error code 13, Rheem Tankless Water Heater Troubleshooting Manual [Complete Guide], Basement Watchdog Battery Alarm Add Distilled Water, Basement Watchdog Battery Alarm [Corroded Terminals Or Bad Battery], Basement Watchdog Pump Was Activated Alarm, Loose remote control wiring or the remote control itself gets defective. Follow the same troubleshooting procedures outlined in error code 61. > Inspect the Molex connections at the PCB. Draining and flushing out the tankless water heater is quite straightforward and you can do it by yourself. Rheem error code 33 can occur if scale buildup is on the inlet valve water filter or other thermistors, damaged or bad wiring, and short circuits. Why is my Rheem tankless water heater overheating? This neutralizer is specially designed to keep the drain condensate away from the water heater. Cracked or broken heat exchangers, using improper fuel type, and clogged venting systems are the reasons behind an overheated heat exchanger. If this drainage system gets clogged, your tankless water heater will flash the error code 29 to prevent the burner from being flooded. Replace the PCB or fan if needed. Afterward, measure the voltage of the wiring between the water control and the connector B. Its a plastic film wrap with the black squiggly lines. BRAND NEW, NEVER USED. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Rheem error code 21 means the air intake filter is not working correctly. Copyright. Hopefully I earned 5 stars today =). We recommend you check out this in-depth guideline on Rheem Tankless Water Heater Code 11. Error code 76 on Rheem Tankless Water Heater is an indication of faulty communication with the remote control. Rheem error code 05 can be caused by blocked air ventilation and exhaust flue systems. The resistance should be 50k-500k ohms. Founded by Hubert Miles, Certified Master Inspector. Rheem Tankless Water Heater Code 14: Reasons & Solutions, Rheem Tankless Water Heater Code 13 [How To Fix], Basement Watchdog Battery Alarm Add Distilled Water, Basement Watchdog Battery Alarm [Corroded Terminals Or Bad Battery], Basement Watchdog Pump Was Activated Alarm. If your Rheem tankless water heater displays an error code P1, the minimum water flow rate is insufficient for the main burner ignition. . Dont forget to release the blockage if needed. To erase the error code 13, start with cleaning the dirty flame rods. Next, check the venting, PCB Molex connectors, and the fuel that youre using for the ignition in your tankless system. You should also measure the Molex connections resistance. I guess the PA error code is a air conditioner related fault code. Symptoms, causes, and step-by-step troubleshooting guide to fix the most common problems on Rheem on-demand models. On the other hand, if it gets cracked, we recommend you replace it with a new one. To troubleshoot the Rheem error code 10, check the air intake condition, exhaust flue inlet, heat exchanger, fan blade, and fins. If the readings are not right, replace the thermistor; if they are within specs, you may have to replace the PCB. Press and hold the reset button for 3-5 seconds. If there is no information, the unit should be working correctly. If yes, clean the heat exchanger. To reset the water heater, turn off the hot tap water and the unit itself. Am I right? Begin with cleaning the air inlet filter. If youre wondering how to do it, take a look at our dedicated guide to learn the detailed procedures. Why do tankless water heaters burst? Restrictions in the air supply or blocked exhaust venting are the root reason for a tankless unit overheating. We recommend you read our in-depth guide on Rheem Tankless Water Heater Code 12. Run the unit and check if the error code persists. Ensure the unit is properly grounded and its wiring is in good condition. As a basic inspection, start with verifying that there is water flow through the unit. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. However, if it isnt, check the resistance readings of the heat exchanger. A list of AO Smith tankless error codes for easy and inexpensive troubleshooting. All Plumbers are screened, licensed, and insured. Also, if the heat exchanger is covered by dirt or shoots buildup, it gets too hot and causes the wrap sensor failure. Disconnect the remote control, switch the unit on, and open a hot water tap to start it. Understanding Noritz error codes and troubleshooting Noritz water heaters. Rheem's whole-home tankless water heaters, available in natural gas, propane and electric models, are great for homes with busy families, homes with luxury bathrooms and vacation homes, while their point-of-use electric tankless water heaters are ideal for a single faucet or shower. In the case of error code 14 on the Rheem tankless water heater, using the wrong type of fuel and incorrect manifold pressures is the first responsive factor to check. Rheem error code is found on indoor units only and can be caused by a dirty air filter door or improperly installed and seated air filter door or front panel. If your Rheem displays an error code 76, confirm the remote control wiring is in good condition and tight. Restart the unit and confirm the water control receives enough voltage. If your Rheem displays an error code 29, ensure the heat exchanger is clean of any buildups. Rheem Tankless Water Heater Error Code 10, 06. Now if any of the Molex connectors get loosened and detached from the PCB, it leads to the wrap sensor failure. During winter & freezing days, we recommend you insulate the drainpipe by using a heat tape. Before finding out the source of the problem, we recommend you pull out the remote control wiring from the wiring terminal on the PCB. If the overheat wrap sensor is not functioning, a defective heat exchanger is a leading culprit to blame. If the unit starts, the problem is either with the remote control or wiring. If nothing works for you, I suspect the PCB is the culprit. Next, inspect the heat exchanger for any damages. You may also need to turn off or replace the circulation system. How to check if a tank is leaking due to an increased hot water pressure. origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared . Remove electrical connection box (single screw on outside left). Check the thermostat on the remote control; it might be set too low. 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.. Ensure you eliminate every obstruction from the vent termination of the building and the flapper valve. In plain words, the water heater error code 13 stands for a defective combustion system. Rheem error code 90 indicates a blocked flue. If you find any blockage, run a plumbing snake to get rid of the clog. Inspect the condition of the flame rod and blower motor, the air intake, and exhaust vents. Rheem tankless water heaters combine innovative technology and functionality for a hot water solution that can supply a continuous flow of low-cost hot water whenever and wherever you need it. Step 1 and 3 plus b. A clogged condensate drain line and incorrect condensate line piping are the common causes to block the drainage system. As the heat exchanger is prone to get dirty, take an eye to it first. The Solution Option 1 Unblock heat exchanger: Clear the heat exchanger of any blockages. Press it inwards until it clicks in place and then releases. That includeselectricity, natural gas, and propane. At 210F, it will automatically shut down and switch on automatically when the temperature goes down to 194F. Rheem tankless water heater will display the error code 14 when the Overheat Film Wrap (a sensor) gets activated. The burner assembly fires up only when you open the hot water tap. Blocked vents. 2. Improper fuel type, rusty or defective heat exchanger, and faulty Molex connector are some caveats responsible for triggering this error code. Ensure the programming chip is suitable for your Rheem model, and the altitude at which the unit is used. Available in both indoor and outdoor models, Rheem high-efficiency condensing tankless gas water heaters are loaded with features to help you save money and reduce water waste. Rheem tankless water heaters provide water on demand. Leave the unit for 2o minutes. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. Measure its resistance and voltage and replace it if necessary. Most tankless water heaters are operated by natural or LP gas. Close the hot water tap and turn OFF the remote. That way JustAnswer will credit me as the expert for answering your question You can ask a follow up question after rating my services in . Increase the flow. Remove the cover panel and set it aside. Ensure that the altitude is set correctly for your particular needs and the vents meet the necessary size requirements for safe operation and use. > Inspect the exhaust pipes for any clogs. Ensure all parts are in good working condition, clean, and not blocked by a foreign object. Water volume control fault is what error code 65 indicates. This will erase the code from the display. If it does, you should check if the pulse output is from it. Get FREE quotes from licensed Plumbers in your area today. Years of experience in the HVAC field have taught him many lessons, not the least of which is that the value of quality and knowledge far exceeds any promised initial savings. Use the error code guideline below to identify the problem, or. Sediment Deposits In The Heating System 5. The Rheem error code 31 can be caused by scale buildup on the inlet water supply filter or any thermistors, damaged or bad wiring, and short circuits. Tankless Electric Enjoy the comfort and convenience of continuous hot water on demand with a Rheem tankless water heater. Also, the exhaust vents should be free from any hard objects. When that happens, all you need to do is know what each error code means so that you can take the appropriate steps to rectify the situation. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. The gas control assembly, the main burner, the flame rod electrodes, or the PCB may need to be replaced. All Right Reserved by FIREPLACEHUBS. 3. Call the service if none of the steps taken above works. The flow meter sensor is also referred to as a water temperature sensor. Apart from these, defective combustion systems, problems with the main burner or pilot, and faulty motor are other culprits responsible for throwing this error code. To learn more about error code 14, read this in-depth guide. If necessary, replace the remote control, remote control wiring, or the PCB. Legal Disclosure:Lildutchuncle.com provides and shares information on plumbing, heating & air quality, home improvement, and other DIY projects. Solution: If your tankless water heater is using natural gas, make sure that there is no interruption in gas supply from the distributor. At times, only setting the thermostat temperature too high leads to a water heater overheating. We recommend you check the heat exchanger fins first for blockage. Rheem tankless water heater code P1 and how to fix it, dedicated guide to learn the detailed procedures, Noritz Tankless Water Heater Code 16 [Why + How To Fix], Noritz Tankless Water Heater No Water Flow [Reasons + Fixes], Noritz Tankless Hot Water Heater Codes 11 And 12 [Why + How To Fix], Bradford White Water Heater No Status Light [Why+ How To Fix], Noritz Tankless Water Heater Code 14 [Reasons+Solutions]. Anyway, we have explored each of the troubleshoots in detail throughout our guide. If it does, the unit should be working properly and restarting. If the water heater has the mixing valve installed and does not operate properly, it must be replaced. 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