The thermo-fuses are wrapped around the heat exchanger with the bi-metal safety switch mounted to either the top left front or the top right of the heat exchanger. This information to troubleshoot this error code. If you have a code 51 issue, the unit will continue to operate. Check that the minimum flow rate is reached. Look for broken, damaged or loose connections. Don't forget to check the vent outside. A Guide to the Broken Heaters: Rinnai Tankless Water Heater Code 11. This makes your owner’s manual your best resource for troubleshooting your unit. There's a number of issues that could be causing an error code 25. Locate your gas supply and ensure it is turned on. Also for: Energysaver rhfe-431 ft. Check if the tankless is producing a water flow using the temperature controller by pressing the "UP" button for 3 seconds and then the "ON/OFF" button. If you were not able to find evidence of water pooling within the cabinet, disconnect the sensor and fire the tankless. Check that the flame rod is touching flame when the unit fires. They'll have the training and tools to find and resolve the problem. You could unplug each component individually and attempt to cycle the unit on. Privacy Policy You should flush your tankless as soon as possible to prevent damage to your heat exchanger. In most cases, it's best to call a professional to troubleshoot this issue. Once the root problem has been repaired, the error code will clear. Verify manifold gas pressures and dip switches were properly set for your altitude. So far each failure has had a different code until this time as the code 11 was the original failure code a week ago. IMPORTANT: There are two types of error code 12. Definitions of Rinnai Tankless Water Heater Codes . Inspect the fan housing. Rinnai tankless water heaters show error codes for various reasons. Copyright 2021, Rinnai America Corporation. Gas vs Electric Tankless Water Heater: Which is Best? Check the vent system for blockages, clearance issues or any other issues that could prevent proper venting. If the outside air temperature thermistor is disconnected or open, the tankless will display an error code 41 and alternate to the set point temperature. Linking Policy, Need a Professional Installer? If your tankless is displaying and error code 02, you'll need to call a professional. If you find evidence of water pooling, dry off the leak sensor as well as the inside of the cabinet. This error code should be resolved by a professional as they will need to measure the winding resistance of the fan motor. This error code is an indicator that there's a short circuit within the tankless. There may be damaged or loose wires. Call for service when your unit is showing this code. At first the company produced and sold oil ovens. Check the gas valve at the gas meter and the tankless unit to ensure that they are turned fully on. If the lines are reversed, the unit will not work. A local professional can help you diagnose the error code and help you correct it. The previous nine error codes are stored in memory. An error code 16 means that the tankless shutdown to protect itself from damage. We'll help you find a Rinnai stockist so you receive the right advice and product, as locally as possible. In most cases, it's typically best to contact a professional to troubleshoot this error code. Inspect the wiring harnesses from the flame rods to the PC board. Check that the required clearances surrounding the tankless have been met and maintained. Rinnai boiler error codes A flashing heating light indicates a blockage in the system where filters must be cleaned. If you just installed your tankless, check that the hot and cold water lines are correctly attached. If you see an error code 10, check the following: Caution: It's best to contact a professional to investigate an error code 11. Error code means there is an over temperature warning. The display will alternate between a code 51 and the temperature set point. Check the wiring harness between the PC board and the fan motor. Although, if you are comfortable, you could drain down the tankless and remove and check for lime scale build-up on the thermistor. A professional can troubleshoot the problem and make the repairs safely and efficiently. The tankless may or may not be operating when this code is displaying. Look for loose, broken or damaged connections. Contact a professional to troubleshoot and repair an error code 52. The tankless may or may not be operating when the code is showing. There is no way to reset these fuses. Error code 02 means there is no burner operation during freeze protection mode, in which case calling a plumber is helpful. Flow control or another component within the cabinet, disconnect the sensor, 'll! Check the gas valve at the gas valve at the gas meter and the sensor and fire the tankless be... 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