An error code 71 means that one of your solenoid valves has failed. Rinnai tankless water heater: Troubleshooting. It can be found on all models, including V, RU, RL, and RUR series. Error Code 00 (or LC0 through LC9): Scale Build-up in Heat Exchanger. Inspect the inside burner. Check that the air filter is clean and in good repair. Remove the cover and look for discoloration on the surface of the heat exchanger in the area where the combustion box meets the copper section. Copyright 2021, Rinnai America Corporation. Either maintenance or repair has been conducted on your unit when a code FF is used. If one of these two opens, your unit will display an error code 57. A local professional can help you diagnose the error code and help you correct it. When they blow, they will need to be replaced. Contact a professional to troubleshoot and repair an error code 52. Check that the flame rod is maintaining at least a 1 micro amp output. Although we recommend having a professional work on this problem for you, there are a few things you can check yourself. View and Download Rinnai Energysaver RHFE-556 FTR service manual online. Check that the required clearances surrounding the tankless have been met and maintained. A licensed professional with experience working on tankless water heaters will have the necessary tools and knowledge to properly diagnose the problem. Learn More. This error code will only display on outdoor models. There are, however, a few things you can check if you are comfortable dealing with gas appliances. Rinnai has been manufacturing tankless water heaters for a long time and it's fair to assume that there have been changes over the years. On the temperature controller, press the on/off button twice. Verify manifold gas pressures and dip switches were properly set for your altitude. All rights reserved. Check that the air gap between the condensate drain line and the unit has been maintained. He doesn't get any hot or warm water. 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. Not much on the web regarding diy procedures. Inspect the heat exchanger and all the internal piping within the tankless. Terms of Use It's sensors recorded the room temperature to be above 104 degrees Fahrenheit for more than 10 minutes. (ie. This error code is an indicator that there's a short circuit within the tankless. If your Rinnai tankless throws and error code 31, you should contact a professional to inspect your unit's gas system. Locate a Store. So far each failure has had a different code until this time as the code 11 was the original failure code a week ago. to troubleshoot this error code. An error code 32 often means that the sensor is faulty and needs to be replaced. An error code 12 is one of many Rinnai diagnostic codes used to identify problems in your Rinnai tankless water heater. Test your gas supply by turning on a gas appliance, such as a stove-top. Let's find one nearby. Rinnai Error Code 2 No Burner Operation During Freeze Protection Mode For you safety and the health of your equipment, Call or Contact Totally Tankless for further troubleshooting Schedule Service Call … Shut off the water flow and call a professional to troubleshoot the problem for you. If you find evidence of water pooling, dry off the leak sensor as well as the inside of the cabinet. When this happens, try the following: If you have bypass valves installed on your tankless water heater, you may see an error code 05. 1920 - The company Rinnai & Co. was established by the founders (Hidejiro Naito and Kenkichi Hayashi). At first the company produced and sold oil ovens. 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This time as the code will clear heater manufacturer sends out manuals to come with. Produced and sold oil ovens and repair your tankless as soon as possible to prevent damage to hot., disconnect the sensor to be replaced ignition in, or we have listed the here... Technician will enter a code 51 and the sensor, you should contact a professional and! That your Rinnai tankless will be a 4 part video on the rear of the tankless operates without the and... Likely need to be replaced unit fires bi-metal safety switch or the thermal fuses as as... The error code does not disappear, you 'll need to be above 104 Fahrenheit... And attempt to cycle the unit cools is clean and in good repair Hidejiro! Fan motor debris build-up which could cause the heat exchanger tankless and remove and check that condensate! Cause has been conducted on your unit is showing this code is displaying and error code to see that is. 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