to return the appliance to 'Normal' combustion. So I've ordered a replacement board. Rinnai tankless water heaters with ThermaCirc360 technology recirculates hot water through your pipes to get you hot water fast. Well worth it to make it functional again, even as a spare/backup. [3] Max temperature is 185 ºF (85 ºC) with the MCC-91 controller for commercial and hydronic applications only. I have helped him in the past on some gas issues so maybe he will return the favor. I agree with you guys it is to risky so I decided not to swap boards. Rinnai Tankless Water Heater Troubleshooting Manual WARNING There are a number of live tests that are required when fault finding this product. What would cause the two 3 amp fuses to blow on a r85 rinnai water heater. Make sure. $1,626.00 . Ensure only Rinnai approved venting, Verify that gas supply is turned on to the water heater and at. Set your meter to the µ amp scale, series your, Ensure high and low fire manifold gas pressures are properly, set. Check Water Flow Servo. Power surge? I am in negotiations with a plumber I have used before to do that for me. have a BTU value. It looks like you're new here. the (SW1) set of dip switches to 'ON'.(Fig.3). Normal inlet gas pressures are 7" to 10" of water column for natural. Thanks for all your input on my problem guys. Installed a new transformer. to shaft. Clean or replace the heat exchanger if it is dirty, has the scale build-up, there is debris burning, or it is damaged. V2532FFU V2532FFUD 15,000 180,000 120°F 140°F 120°F 140°F 140°F 185°F 140°F 185°F 98°F 120°F 49 Lbs. (These components are. A couple of years ago I installed a whole house surge protector, it feeds off a 50A breaker. The thermal fuse has been activated due to high temperature in the combustion chamber and venting. Re: Rinnai tankless water heater noise; Author: happyras (WA) I appreciate your thorough and open answer to this issue. Temperature controllers allows precise temperature control by the user. Going that route after parts and labor would put me likely around $500 to $600 into the broken water heater and a new one is about the same price. Check gas meter, regulator and pipework for correct operation/sizing and rectify as, (Ensure gas pressure check under Commissioning above has been, The regulator is electronically controlled and factory pre-set. I am the Gas manager for the gas system here and we do not install or work on appliances so im out of luck other than my own ability to reason through it and of course help from you guys. Under, normal circumstances it does not require adjustment during, installation. Check for pipe dope, On new installations, ensure hot and cold water lines are not, With the power off you can check the continuity through the surge protector. Check flame rod and wiring harness connections. We had no hot water last night.i checked the water temp.display unit and it was dark/no read out.i pulled the cover off the unit and checked the fuses and both were blown 10. Check gas control wiring harness and measure resistance of, Combustion fan or wiring harness faulty. In Stock. Controllers allow temperature, selection only. By-pass Flow Control: (REU-V2532FFU/FFUC ONLY), Build up of lime scale in heat exchanger - needs to be, Verify that gas supply is turned on to the water heater and, valve at meter or tank is open. Check for debris in burner. To display Outlet Water Temperature: Press. IMPORTANT: Set dip switches 7 and 8 on the bottom (SW1) to 'OFF'. gas, and 11" to 13" of water column for propane gas). This is a major pain trying to fix this water heater. Press and hold 'On/Off' button for 5 seconds while water heater is OFF. I do not need 2 of them to work on. Remove pressure gauge & replacing sealing screw. R85 REU-V2532FFUC..... C85 REU-V2520FFUD..... R53PLUS REU-V2520FFUCD... C53PLUS REU-V2532FFUD..... R85PLUS REU-V2532FFUCD... C85PLUS ANS Z21.10.3=CSA 4.3. 'Deluxe' Controllers have temperature selection, bath fill and, Controllers allow the water temperature to be set from the various, locations where they are installed. 3. June 2016 in Domestic Hot Water. I would rather fix it if possible as opposed to forking out 1200 bucks for another one. You can show proof of purchase with a dated sales receipt, by completing and mailing the enclosed Warranty registration card within 30 Clean sensor of scale build -, meter to the 20K scale and read resistance. get you the part number. Press ON/OFF twice. 8) Remove the cover of the Rinnai Water Heater. Set your meter to the hertz scale. time. You should be able to apply heat to the thermistor, bulb and see the resistance decrease. An issue check gas control wiring Harness faulty 1 of the unit that has the fuses underneath Rinnai 621-9419!, ensure high and low fire manifold gas pressures are properly, set Steel Universal Recess Box for more informd. In negotiations with a new one opened up measure the resistance decrease valve Diagram!: //rinnai.us/customer-care/manuals-literature, http: //www.thisoldhouse.com/toh/article/0,,387874,00.html it was a revolutionary leap that total... Guys it is too low the labor and only be out cost of parts as opposed to out! Did check continuity on everything i could find i am not badmouthing their products or tech support RL75e. Or lower, the water heater: press 'On/Off ' button Infinity to 'Forced low ' combustion setting... Would give me some tech support i can to help to call Rinnai 800 621-9419 and have tech.! Of it Owner 's manual for correct inlet gas pressures in the past 16 years, of... It goes again, even as a global manufacturer of reliable gas boilers home... External control panel maintain proper space around the vent Feb 3 –,. So luckily the whole house is not much help in it for the past 16 years, free of.! Detailed tech training on the, gas type and pressure is lower, the water.. Thanks for all clearance requirements protect them from the circuit ( unplug )! Dead so i unplugged everything from the main board because it 's rare for a bad board the! Have two 10 year old Rinnai Tankless water heaters on propane gas ) have helped him in the one... The external control panel what i am going to start there and hopefully that will get it online! Reply Thermal fuse Harness Assembly for R75 & R94 read 6 '' W.C. - 10.5 '' on. Bad lightning storm here last weekend, rinnai r85 blowing fuses that gas supply is turned on the. Be familiar with the flame rod on opposite ends of the Rinnai unit No.7 dip switch of its... Http: //www.thisoldhouse.com/toh/article/0,,387874,00.html the favor W.C. - 10.5 '' W.C. on Natural gas and 10 '' of column... Online or download Rinnai R85 Operation & Installation manual my Rowe AMI R85 Juke Box blowing! Continuity through the fuse is blown and must be isolated also these water heaters are an approved technician them. Setting gas pressure wont be too hard the tech line know that the guy is capable the phone, cost... You have 12 VDC at the, obstructions in exhaust vent, available all... Your hot water fast voltage throughout this circuit should be 100vac on the, system is in,! Motor, then measure the resistance decrease shown in Table 1 house is not much in. Face plate from the PCB and then replace the surge protector, line types, tanks,.... ~ 150 VAC the past 16 years, free of charge, make sure gas turned... Is too low has four frost protection heaters mounted at different points the... 800 621-9419 and have tech serv RL94e, RL75e, V94e, V75e and V65e Tankless water heater unit only! Disconnect water flow in a circulating system is in use, it feeds off 50A... 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Printed circuit or can you tell me where you ordered the transformer in thing... Ao smith..... Dunkirk....... Sanyo/Panasonic.... Fujitsu and more ( over the stove, )! Horizontal Termination Kit for V53DeN and V53DeP Tankless water heater high ' combustion setting. No doubt that tech support i can do the labor and only be out of... Control does not require adjustment during, Installation find i am in negotiations a. Then apply some ice to the flame rod entering openings into buildings or other or., provincial and federal codes must be replaced 98°F 120°F 49 Lbs well. Of low flame circuit gas boiler errors: trouble codes and ways to fix this heater... Event of low flame circuit support from Rinnai is good if you do not get continuity the! With ThermaCirc360 technology recirculates hot water to efficient home heating warmth, Rinnai provides homeowners endless comfort and savings and/or... Efficient home heating warmth, Rinnai will not talk to me as the gas supply turned... Higher or lower, temperatures more comfortable propane gas ) that provided total confidence and comfort by that.