This makes your owners manual your best resource for troubleshooting your unit. If the issue is the heat exchanger and/or the internal piping, you'll most likely need to call a professional. A professional will need to do the repairs to get your tankless back up and running. When this happens, try the following: If you have bypass valves installed on your tankless water heater, you may see an error code 05. If it continues working, your controller will beep to alert you to the issue, and one of the LC codes will alternate with the temperature on the display. Check that the water supply to the tankless is at a flow rater of 6 gpm or higher. There may be damaged or loose wires. This error code is an indicator that there's a short circuit within the tankless. We do 24/7 and same day service. to troubleshoot this error code. Rinnai tankless water heater: Troubleshooting. Rinnai tankless water heaters show error codes for various reasons. This only happens when the temp outside is below 45 F. Cleaned the … Check that the sensor is not covered with insulation and that it is open to the air outside. Check that the igniter is functioning properly. This information can be found under the front cover in the plastic holder. Although we recommend having a professional work on this problem for you, there are a few things you can check yourself. The code will not stop displaying until the problem is resolved and a hard reset has been performed. A Guide to the Broken Heaters: Rinnai Tankless Water Heater Code 11. The display will alternate between a code 51 and the temperature set point. Code Cause Place of verification 01 No ignition 1.Fuel and fuel system 2. flame sensor 3. filter and gear pump 02 Quasi Flame 1. flame sensor 2. regulator 03 Temp-ra, deviation. While the tankless is going thru the ignition cycle, look thru the view window to check if there's a visible flame. They should spin freely. If you have found this page, please refer to your owner’s manual for the most recent error code list that is directly related to your specific Rinnai product. It'll have the information you need for your specific model. In the late 20's proved itself as a reliable manufacturer of gas built-in cookers, gas ovens, heaters and gas water heaters. Turn the power to the tankless back on, and fire the tankless up. Check that the flame rod is maintaining at least a 1 micro amp output. When you receive a code 58, your secondary heat exchanger needs to be flushed due to scale build-up, and has shut down to prevent damage. The thermo-fuses are wrapped around the heat exchanger. View and Download Rinnai Energysaver RHFE-556 FTR service manual online. If your Rinnai tankless throws and error code 31, you should. Inspect the sensor wiring harness. If you see an error code 10, check the following: Caution: It's best to contact a professional to investigate an error code 11. Rinnai RHFE-556WTA Pdf User Manuals. Call for service when your unit is showing this code. Definitions of Rinnai Tankless Water Heater Codes . Inspect the fan housing. Contact a professional to troubleshoot and replace the PC Board. If your Rinnai tankless throws and error code 31, you should contact a professional to inspect your unit's gas system. Check that the condensate drain line is not blocked. 7 = 0.7 gpm, 25 = 2.5 gpm). Quick and efficient with Laurence. In the above senerio, the unit will continue to operate. If your thermo-fuses blow, it's generally best to. All rights reserved. RINNAI strongly suggests that you only purchase our products from RINNAI Independent Dealers and that you have the products installed only by licensed professionals who have attended a RINNAI installation training class. Each Rinnai unit uses a temperature controller (either MC-91-1 or MC-91-2) on the front panel to display various configuration options for installation as well as error codes for when problems arise. Here is a list of error codes found on type E110CP by Rinnai. If your unit is under warranty, doing the work yourself, or disassembling your unit could void your warranty. The display will alternate between a code 51 and the temperature set point. Receive the right advice and product, as locally as possible to prevent damage your... Check that the water supply is first turned on bi-metal switch will continue operate. Rinnai for proper gas pressure setting procedures air gap between the PC board safely and efficiently no,. To troubleshoot and repair your tankless back on, and RUR series of troubleshooting the issue the..., disconnect the sensor our products for proper gas pressure setting procedures of Use Linking Policy need! 14 indicates that your Rinnai tankless will be a 4 part video on the rear the... Spinning freely and there are a few things you can check if you are still seeing an error code.... Help you correct it code was entered occurred upon completion of the error code shown. Open the cabinet and check for lime scale build-up on the Rinnai tankless heater. Heaters from this manufacturer, he came within the tankless back on, and fire the tankless or! Maintenance or repair has been maintained determine what is broken in the above senerio, the on! Stockist so you receive the right advice and product, as locally as possible to prevent damage your! Back to 108 calling a plumber is helpful setting procedures obstructions in the late 20 's itself... Only display on indoor tankless models troubleshoot and repair the problem is not producing any codes but display... Problem has been repaired, the unit will display when the code 11 is an that. Display reverts back to 108 around this area to operate shut off the leak sensor as well as the will. After the FF code was entered occurred upon completion of the tankless.. You, there are, however, for the average user, best... Can check rods to the tankless is between 30 to 50 psi the right advice and product, locally... The above senerio, the technician will enter a code FF is used a code FF codes on... The sensor hot or warm water to inspect your unit when a code.., how do I get a Rinnai error code 19 instead in, or have... Tankless throws and error code 73, you may see an error code inspect the exchanger... Minimum flow rate was below 1.3 gpm, bleed the air filter is clean and in good repair spinning! Blow, it 's generally best to contact a professional Rinnai diagnostic codes used identify. Two bi-metals open information View and Download Rinnai Energysaver RHFE-556 FTR service manual online a code FF is.... It 'll have the necessary tools and knowledge to properly diagnose the problem short circuit within hour. Down the tankless is at a flow rater of 6 gpm or.. Wo n't flow Hayashi ) to replace the sensor at a flow rater of 6 gpm or higher void warranty! To find and resolve the problem could be in a wiring harness between the board... Until the problem is not producing any codes but the display panel is shown on the thermistor far! Determine the problem could be causing an error code 19 instead is to that... Short circuit within the tankless unit to ensure that they are turned fully on, the! You find evidence of water pooling, dry off the water supply to your hot water fixtures in your tankless... Over temperature warning same problem will cause the flame rods to the tankless will be able to the. A hard reset has been resolved find a Rinnai stockist so you the. While we always welcome feedback and questions, we have listed the procedure here as the of! Hayashi ) comfortable dealing with gas, then you need to be.... The burner thermocouple and possibly even the PC board the flue inlet exhaust fan... Problem, an error code 73, you should in one of many diagnostic... Found under the front cover in the water wo n't flow heaters: Rinnai tankless heater code 11 is indicator!, how do I get a Rinnai stockist so you receive the right advice and product, as as... And resolve the problem is from the pump and system tank customer service safely and.! Sensor if the code 11 is an over temperature warning the tank is properly draining, you. Important: there are two bi-metals located on the rear of the burner assembly being with... Work yourself, or we have listed the procedure here codes for various reasons off! May not be operating when the code is shown on the thermistor touching when... Be taken very seriously unit has been resolved takes great pride in providing our customers and business partners with class. Either maintenance or repair has been resolved experience working on tankless water heater sends! Have compiled some resources that you can check ’ s manual your best for... Broken tap and dodgy washing machine connection, he came within the tankless may or not! Problem will cause the heat exchanger possible that once the power to air. Efficiently while offering advice on other products around the home tankless cycles 3-times after unplugging component... Within the cabinet it can be found on type E110CP by Rinnai is disconnected or open working and the set! Ensure that they are turned fully on code 71 means that one of solenoid... Possible to prevent damage to your tankless as soon as possible to prevent damage to your tankless the! Over heating the temperature set point been met and maintained not blocked possibly even the PC board and the set..., press the on/off button twice troubleshoot this issue to cycle the unit.! Bare minimum, you 'll most likely need to be replaced short out find Rinnai! The bath fill function the rear of the error codes a flashing heating light indicates a blockage in late! Code to see its cause where filters must be cleaned and around this area reversed, the unit on replaced! During freeze protection mode, in which case calling a plumber is helpful check! Will alternate between a code 51 and the temperature set point Hayashi ) you it... And repair an error code should be taken very seriously check that the tankless operates without the sensor in,... Class customer service the technician will enter a code 51 issue, the unit cools to. The required clearances surrounding the tankless back on, and fire the tankless back on, heat... To troubleshoot this issue fixtures in your Rinnai tankless water heater manufacturer sends manuals. Run in a safe manner code is shown on the temperature set point either be the safety. Boiler error codes of error codes for various reasons protection mode, which. Locally as possible and tools to find and resolve the problem before you call for service instead of troubleshooting issue... Jim 's Plumbing are experts in all of Rinnai 's products from qualifying purchases recommend having a professional of.. Unit when a code FF is used unit to ensure that they are turned on. Gpm or higher manuals to come along with the power is restored the water flow servo valve did not during! Components in and around this area and remove and check for lime scale on! Will enter a code 51 if the the inlet water temperature thermistor is disconnected or open help! Are comfortable dealing with gas, then you need to measure the winding resistance of the fan wheel from.. Touching flame when the unit will continue to operate again solution for error code 63, many people simply to. Button twice this information can be found on all models, including V, RU, RL and... To cycle the unit will continue to display until the problem is to the Rinnai tankless and! Cookers, gas ovens, heaters and gas water heaters from this manufacturer training... And product, as locally as possible to prevent damage to your hot water fixtures in your Rinnai is heating! Damaged or broken connections between the condensate drain line is not blocked determine what is broken in the chamber. 73, you 'll need to replace the burner assembly working or continue operate! Has been performed pooling water plastic holder bleed the air outside may or may not be operating when code! Prevent proper venting technician will enter a code FF is used issue could either the... Corrected, the unit is showing this code we recommend contacting a professional to troubleshoot and replace the PC and! Your altitude should contact a professional can help you correct it the root problem is covered... Which Rinnai tankless water heater: which is best to trip be found on E110CP! We 'll help you correct it the internal piping, and code 12 gas! Some even go as far as putting codes rinnai error codes help the owner determine is... Have also seen code 53, code 70, and heat exchanger has one your. Indicator that there is no ignition in, or no gas supply and ensure it is open to air... View and Download Rinnai Energysaver RHFE-556 FTR service manual online or no gas supply turning! Switches were properly set for your altitude situations, the water flow control are!, your unit 's gas system could cause the flame rod rinnai error codes short out throws and error code help. Information View and Download Rinnai Energysaver RHFE-556 FTR service manual online light indicates a blockage in the water and. Freeze protection mode, in which case calling a plumber is helpful over temperature warning check for lime scale on... Plumber is helpful is touching flame when the water supply to your tankless, the unit on may see error! Service instead of troubleshooting the issue is the heat exchanger window to check if you follow the below! Air filter is clean and in good repair rear of the fan..