To operate the water heater temporarily until the heat exchanger can be flushed, push the On/Off button on the temperature controller 5 times. Debris will damage the Rinnai Water Heaters. Circ-Logic Technology allows you to purchase the pump separately for installation. − Immediately call your gas supplier from a … Then when the heater overheats and turns off again the temp reported goes back up to ~90F. ... Rinnai Water Heater Heat Exchanger Leaking should I … This feature is standard on Rinnai's Ultra and Luxury Series units. Oh, I didn't notice I could attach images... Something odd I noticed while troubleshooting further is that the inlet water temperature reported on the controller drops when the heater turns on. Press On/Off button on controller to turn OFF water heater. “I’m not getting any hot water from my tankless water heater.” The problem behind the complaint? Rinnai takes great pride in providing our customers and business partners with world class customer service. Here is how a professional keeps a Rinnai Hot Water Heater running correctly. 228 27 0000002974 00000 n Rinnai Tankless Water Heater Problems: Hot Water Delivery Issues The Dreaded Tankless Water Heater Pause. If you want to get involved, click one of these buttons! It prevents the pipes on the hot side from depressurising when a cold tap is turned on. Plus, there is a slight delay between the time they detect water flow, and when the heaters actually kick on. 0000009594 00000 n Did you use Rinnai check valves? Does the water heater have the integrated recirculating pump? The display consistently and always displays "120". 0000001540 00000 n This prevents the “cold water sandwich” and cuts down your hot-water-wait-time dramatically. 2. If the Rinnai Water Heater fails to light 1) DO NOT ATTEMPT TO LIGHT BY HAND. 0000025819 00000 n 0000007393 00000 n I need some more cycles to be sure and I have the feeling that I should do another flush. 0000005415 00000 n The priority can only be changed while no hot water is running. I recently disconnected it and then reconnected it and did not purge the line, but this has gone on for thirty or so cycles, and I would think I'd have purged the flex hose by this point. Something odd I noticed while troubleshooting further is that the inlet water temperature reported on the controller drops when the heater turns on. https://forum.heatinghelp.com/discussion/138604/rinnai-cycles-hot-cold. 0000026068 00000 n Select Rinnai tankless water heaters can provide faster hot water by recirculating the water through your plumbing systems, so hot water is always available whenever you need it. Then when the heater overheats and turns off again the temp reported goes back up to ~90F. ... a spark when unit is cycling. • Ensure dip switches are set to the proper position. 0000004731 00000 n Page 41: Lighting The Unit 3) Turn the manual gas control valve on. The cycle stops based on the temperature thermistor readings. The technicians are quite skilled and answered all my questions during my install. I guess you are now on a tighter vinegar flush schedule. 0000003568 00000 n Make sure that the shut-off valve, is not closed. You bought the Value series and it doesn't have the feature set the other models, as the name implies. Try what Jake said, first eliminate the recirculation and see what the behavior is. Page 38 Parameter settings can be set with the water heater turned OFF. 1. Tankless Water Heater, Technical Installation Guide for Education and Training Purpose Only The flame is ignited and heats the two heat exchangers that are included in the Super High Efficiency models. A dedicated range of solar compatible continuous flow water heaters is available from Rinnai If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or j. 0000001455 00000 n Thus when turning off the cold water they aren't repressurised, Thus no flow through the heater. The RCL programming built into the water heater’s circuit board controls the on/off sequence and operational cycles … 2. Endless Support. As well, on anything but the V series you can go wireless to see what is going on with the water heaters on any unit back to '06 production. The first things you should check are the correct supply of electricity, water, and gas to the water heater. It has a built-in control panel where you can turn it on and off and set the desired water temperature. You could buy an MV-100 controller for the V65 and it will give you a boat load more info. The pump ON/OFF cycles will be determined by the Economy or Comfort settings on the main circuit board and the water heater’s set temperature. Rinnai Water Heater Heat Exchanger Leaking should I Repair or Replace Heater. Fig. Yet, 25 °F temperature increase at 1 gpm flow rate needs an heat input of only 12,500 BTU. IMPORTANT Refer to “Rinnai Tankless Water Heater Installation and Operation Manual” for complete list of water heater parameter settings. We also have a water system that automatically drains when the water main is shut off and a faucet valve opened. Cleaning the blower. There are no error codes. 1a. I have a Rinnai V75IP propane tankless hot water heater that I bought new 3 1/2 months ago, in June. 0000008103 00000 n • WHAT TO DO IF YOU SMELL GAS − Do not try to light any appliance. 41 when the water is turned back on within a few minutes of the demand system cycling, and cold water sandwich is created. The exact model is “REU-16 FUA-IS”, which is a EU model, but it seems it is similar to other such devices by Rinnai sold in other parts of the world. We have a Rinnai Infinity 16i tankless gas water heater at home. 0000003011 00000 n Provided there is electricity and gas available, the Rinnai tankless system is well protected from the threat of freezing. If you are demanding 1 gpm hot water flow, the minimum flow rate of the water heater is met so you would think it should not shut off. 0000006762 00000 n Then. 0000053321 00000 n When the water inside the unit is heated to about 58 degrees, the system will cycle off and on until there's no longer a threat of freeziing. Rinnai r85 tankless water heater stopped workin. 0000000836 00000 n When the need for hot water arises by turning on a shower, washing machine, dishwasher or faucet, cold water flows into the Rinnai Tankless Water Heater from the inlet pipe at the bottom of the heater. Fixing tankless water heater problems No hot water. I hired a plumber/electrician to install it, but he was not a certified Rinnai technician. My symptoms are similar to the original question in. My questions are as follows: 1. 0000001870 00000 n This is how to fix a Rinnai Water Heater that is not working following a flush of the heat exchanger. 228 0 obj <> endobj − Do not touch any electrical switch; do not use any phone in your building. xref All of the other Rinnai models for the past few years have all the info of the MV-100 built into the standard control. 0 <<8DC43A65D44ED24294FBE04C414BED27>]>> 0000012288 00000 n Rinnai Circ-Logic (RCL) programming offers a circulation option for applications that have a hot water circulation system with a dedicated return line*. I would also reach out to Rinnai. %PDF-1.4 %���� It starts out around 90F and when the heater turns on drops to ~50F within 3-4 seconds. While we always welcome feedback and questions, we have compiled some resources that you will find helpful in operating and servicing our products. 0000003902 00000 n Press the Priority button´ on the temperature controller. No hot water is one of the most common problems in water heating systems. The heat is just off. Rinnai Tankless Water Heater ... Before checking resistance readings, turn off power source to unit and then isolate each item to be checked from the circuit by unplugging it. It looks like you're new here. STOP!! The small tank water heater provides you with hot water while your tankless unit’s heat exchanger warms up. Rinnai Tankless Water Heater Installation and Operation Manual U334 • Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. The second method to remove the cold water sandwich from circulating systems utilizes a small 2 to 6 gallon storage tank installed on the hot water outlet of the Rinnai water heater. If the water heater is off, press the ON/OFF button to turn on. Press On/Off button on controller to turn OFF water heater. I took over this job for a retired plumber. Which model Tankless water heater are you using? When the water main is turned off for an extended period, should the gas and electric to the water heater also be shut off? 0000003318 00000 n (Water flow rate and water temp are stable all the time.). ... cycling. READ THE SAFETY ISSUES ON PAGES 8 4) Turn on any hot water tap. My rinnai direct vent heater turns on, runs for about a minute, creating heat, and then shuts itself off completely. With the water heater turned off, press and hold the ON/OFF. 254 0 obj <>stream The non return valve either before the heater or after the heater does the same thing. Since these water heaters do not activate until they sense actual water flow within, they do not keep any reservoir of hot water. I did an acid flush of the heat exchanger and now the Rinnai seems to be working normally, or at least a lot better. 0000002542 00000 n This tank acts as a mixing tank to blend the cold water sandwich with hot water … 2. We have a Rinnai R85 tankless water heater. Title: 100000284 Rinnai Recirculation Logic … Rinnai Circ Logic™ – Gas Boilers, Space Heaters, Tankless … The water heater produces hot water at the temperature se • Pump cycles on every 31 to 79 minutes water heater or by turning off the water supply to the building. The range of Rinnai continuous flow water heaters referred to in this manual are incompatible with solar water heating systems. For you safety and the health of your equipment, Call or Contact Hot Water Now! 0000008754 00000 n Internal Circ-Logic programming in conjunction with a pump that incorporates a ... 100) a hydronic heating system (such as an air handler) or with multiple Rinnai water heaters linked electronically. trailer 0000000016 00000 n Loose or … It just happened today. 0000001731 00000 n 0000002003 00000 n Rinnai Tankless Water Heater Troubleshooting Manual If the consumer does not leave the tap open the water heater cycles off. x�b```��l@҉A��X��,!8�P��JvVF5F��6½l�o�s�׳\=`�c�����7�p+3��-^��Ø��5���э!� ����Z z�����Pt����谝k7eG]ۺJ�]�5� �!�n'. 2. Page 1 Logic™ controls the on/off sequence and operational cycles of the recirculation pump through the programming of the tankless water heater's control board. for further troubleshooting startxref %%EOF Page 39 1. 6 ... Rinnai ls series tankless water heater brochure (6 pages) Water Heater Rinnai REU - 16 FUA - E Installation And User Manual. It starts out around 90F and when the heater turns on drops to ~50F within 3-4 seconds. 0000006131 00000 n The cycle will start at the approximate time interval in the table. 0000003646 00000 n The Rinnai Water Heater should light and begin heating your water. I have the same problem with a Rheem hot water system. Then about 30 seconds to a minute later, the Rinnai water heater will fire up and start producing hot water again. 0000026290 00000 n Rinnai Water Heaters that Incorporate irc-Logic ... (8.3°) below the temperature setting, the water heater and pump will turn off. Repeated LC codes will eventually lockout the water heater. ) do not ATTEMPT to light any appliance in this Manual are incompatible with solar water heating systems any... Not closed not try to light 1 ) do not keep any of! Mv-100 controller for the V65 and it does n't have the feeling that I bought 3! Switch ; do not keep any reservoir of hot water is turned back on a. 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