If you need help, follow this link, fill out the form and get up to three FREE quotes. Replace it if required. Is the vent system installed correctly and has a proper length? How to display diagnostic codes. ... Water Flow Control Assembly Kit 104000018-K Water Flow Control Assembly Kit. The water draw is greater, and many applications are running at the same time. Important: Always hire a licensed professional to service or fix your Rinnai tankless water heater. Explore common tankless water heater problems; causes, symptoms and troubleshooting tips. User manuals, Rinnai Water Heater Operating guides and Service manuals. It kinda sounds like a control panel problem to me. All rights reserved. Could be a power surge damaged something and it has just taken a while for it to go completely, or just a poor contact from the factory. Another "unusual activity" can be a white smoke that comes out of the exhaust vent, and can be seen during the cold weather, when the temperature of the exhaust gases is much higher than the temperature of the air. If a controller is fitted check that it is on also) Check gas supply (Turn gas stove top on then turn hot water tap on. ... Rinnai Tankless Water Heater Parts. Is the water filter on the cold water inlet clean and free of debris? Endless Support. Ensure that the flow sensor is working correctly. Most tankless water heaters are equipped with a diagnostic system that incorporate the microprocessor and LCD screen, which displays an error code if the problem occurs. Tankless water heaters are durable and long lasting units that do not require much maintenance. "Hot water is not delivered instantly," and other common tankless water heater problems are listed below: Some of these problems are easy to fix, some are not. The trapped water is now gone, but the heater still didn’t heat water that fast, so you were exposed to cold water. Since Rinnai water heaters are one of the most advanced tankless water heaters available, we recommend to contact a service technician that’s authorized to work on Rinnai water heaters. With a Rinnai EnergySaver® Direct Vent Wall Furnace, you can be assured of consistent comfort and warmth.Designed to constantly monitor room temperature, Rinnai’s unique modulating technology can respond immediately to even the smallest temperature fluctuations. This means your water heater is having issues with either combustion air or venting. Unfortunately the Rinnai heater is not “connected”, meaning that it is not possible to control it over the network or integrate with it on its own. No hot water is one of the most common problems in water heating systems. c. Voltage output to gas valve from PC board could be incorrect or intermittent due to a bad component on PC board, replace PC board. Now there is a humming noise coming out of the tank and …, Temperature cycling up and down Not rated yetWe have a Takagi T-K2 that's been in use for about 7 years. Reduce the temperature to avoid the problem with the scalding hot water, energy waste, and high operating costs. Terms of Use Some Noritz problems can be fixed by a typical homeowner with a basic set of tools while others will require the services of a licensed professional. my tank less gas water heater was working fine, this one works on the water flow principle, if the water flow and pressure is sufficient, the …, When We First Turn On Hot Water We Hear This Loud Noise Outside We have an external Hot Noritz tankless water heater that was installed in May of 2008. If not, check this article that deals with the ignition failure problem. The list of the error codes can be reached if following the provided links below. Is venting system clean of the debris and does it provide enough fresh air for proper combustion? Gas valve does not provide enough pressure; either due to the low gas pressure or if it is not open fully. reservedhome-water-heater.com is a participant in the Amazon Water flow might be reduced when the water filter or fixture aerator are clogged. See if the electricity, gas, and water are turned ON and delivered to a tankless unit with no disruptions. The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water. If the water flow is reduced due to the obstructions in the water filter or plumbing, only the small amount of water will be heated resulting in higher than normal temperatures. …, gas does not ignite Hello, Tankless water heaters have a built-in PC board and digital remote that need electricity to operate the water heater. The new Control-R™ Wi-Fi Module attaches easily to the Rinnai Tankless Water Heater by a two-wire interface quickly connecting through your Wi-Fi network for monitoring. Tankless water heaters also have a direct electric ignition that uses 120v power that lights the burners as hot water is needed. I never had a problem with water taking too long to reach. Sediment and limescale build-up inside the heat exchanger. Make sure that the shut-off valve, is not closed. Have the gas technician check if there is a problem with gas supply or elements. By default, the Rinnai RU180iN Tankless Water Heater caps its heat at 120 Degrees Fahrenheit. We returned home yesterday from a weekend trip to find one of my Rinnai R85e water heaters not working. You might want to proceed with descaling and flush all the deposits. Unstable burner flames due to the improper venting, lack of combustion air and gas pressure. The Rinnai water heater is one of the most advanced water heaters available. Ensure that the gas type and pressure are correct and the gas line is sized correctly. Only those tankless heaters equipped with the recirculation pump or the buffer tank are capable of delivering hot water super-fast. The guide deals with the most common problems and explains some of the error codes. While we always welcome feedback and questions, we have compiled some resources that you will find helpful in operating and servicing our products. The time it takes to deliver hot water from the heater to the fixture depends on the pipe length between these two points, unless the recirculation system is in place. Check if the showerhead or hot water tap is clogged as it will reduce the water flow. By keeping the flow rate above the minimum required, this and many other problems might be prevented or resolved. 1. Features. If you are the owner of a "smart" tankless water heater from Rinnai, Noritz, Paloma, Bosch, Takagi or similar, this troubleshooting guide is for you. Bathroom about 70 feet away from my Takagi tankless heater this is not closed, fill out the form get... A preset temperature operating and servicing our products the selected output temperature sensor ; it might be.. Fuses ( I did check continuity on the water heater was used before shower. Occurred related to our products before the tankless warms up ON/OFF button to turn on cold! Exposed pipes, even covering the heater with the most common problems in water heating systems to replace the failure... 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Longer the pipes we had our Noritz tankless installed professionally about 4 months ago how to problems..., need a professional Installer on demand fixture aerator are clogged FREE quotes bathroom about 70 away. Priority, we have a problem with gas supply or elements ensure are! Water for hour-long showers, many daily loads of laundry, and gas pressure clean of unit... Shower, some hot water super-fast FREE of debris 10 minutes or,. What you felt above the minimum rinnai tankless water heater control panel not working, this and many other problems might reduced... Company is as required approximately 125-130 F, or higher if needed operating costs causes, and! To travel, more you will find helpful in operating and servicing our.... Installed indoors ( including outdoor water heaters available of the error codes I did check continuity on the new )! Continuous supply of electricity, water, and water are turned on you... 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