By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. How to Fix: Program the PCB for the proper gas type. if you would please contact me as soon as possible to assist in getting this water heater up and running, i appreciate any and all of your help thank you. Finding any information on this anywhere is difficult. I have a Rheem tankless water heater and it shuts down a lot with a 13 code, i was told to clean the flame rods which i got one of them out and cleaned it but can't get the other one to come out, it i … Ready to return the unit, at my wits end after installing the 3rd control CB. Rheem water heater code 11 - I've had my tankless water heater for about 5 years now, and has never had a problem. How to Fix: Check to ensure all vent and heat exchange components are clean and properly connected. Replace the gas control valve, if necessary. Ohm out the sensor, replacing it if necessary. Paloma sells a line of natural gas-heated tankless water heaters. The fix was to turn the remote off and then back on. Finally, check the igniter to ensure it’s functional. Save my name, email, and website in this browser for the next time I comment. Of course it is a holiday weekend and cant get anyone at Rheem to answer the phone. Having trouble with Rheem tankless water heater code 29 I have drained the neutralizer and made sure it wasn't clogged. The fan blade should be in good shape and tightly attached to the motor shaft. FEATURE Rheem ® Renaissance ™ Commercial 7.5–12.5 Ton HVAC Line Our energy-efficient, hassle-free heating and air conditioning solutions with advanced technology save money so you can stay focused on running your business. What do you mean by not enough air coming in? Had a 99 error code. Emailed Rheem and was advised E5 is: E 5 Error code | High Flow Rate If the LED control board is displaying an E5 error code the desired volume of water is too high to reach your desired preset temperature and you will need to slow down the Flow rate if needed . Rheem fault code 11 – No ignition. What steps to troubleshoot do you recommend. Use your Rheem heater manual as a reference when performing any repairs, and make sure to use the technical support number (1-866-720-2076) whenever you’re unsure what to do. 1. Have a different tankless water heater brand that needs troubleshooting? Rheem 12-character serial number code: B950-3138 RCY-5 Getting a code 14 on Rheem tankless hot water heater. Ensure fan motor will turn freely. It is possible for several litres a day of condensation to discharge from the drain especially in cool conditions. How to Fix: Clean the heat exchanger air inlet. Clean the inlet water supply filter and look for pipe dope inside the water flow control turbine. As always it is best to reboot your Rheem tankless to see if that corrects the issue. i have a reheem electric tankless heater i have a E5 ERROR CODE what would cause this? Learn More. In the event this doesn’t work, you'll need to replace the PCB. Unplug the water heater from power, wait about 30 seconds and plug it back in. Rheem Water Heating will be the premier customer experience provider of Rheem tankless water heaters. So my question is where do I go from here? The unit is in my attic and it easily gets 130+ up there during the day. Rheem tankless water heaters use a condensing technology to offer continuous hot water without the use of a large water tank. My Rheem tankless won’t heat water during the heat of the summer days. RTG2-42 water heater pdf manual download. Other solutions may be to clean out the inlet water filter on the water heater or turn down the temperature on the unit. My thought is it a flow error. Our whole-home tankless water heaters, available in natural gas, propane and electric models, are great for homes with busy families, homes with luxury bathrooms and vacation homes, while our point-of-use electric tankless water heaters are ideal for a single faucet or shower. There may also be a foreign object in the combustion chamber or exhaust pipework. Navien Tankless Recall In Ontario – Poisoning Risk – Models and Model Number, Heating, Cooling, and Tankless Rebates 2020. Contact a dealer or qualified service technician. 1.Ensure high fire and low fire manifold pressure are correct. My Rheem tankless water heater will run a minute and kick off putting out the 13 code. How to Fix: There are several possible causes for this issue. I have two 125vac circuits feeding it and have verified the voltage at the unit across both circuits @ 240vac. Please help, I need to know how to fix a electric tankless rheem rtex27 error code E5. Ensure the wiring is undamaged and providing the proper voltage. Make sure unit is connected to proper power supply and circuit breakers are on. New tankless water heater heater. Found I had a partially stuck pressure relief valve causing the excess flow in my system. 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. How to Fix: Check the sensor for signs of wire damage and clean off any scale. Clean any blockage in heat exchanger, combustion fan, inlet filter, and exhaust flue. All electric water heaters and gas heaters that use electricity: The first issue to troubleshoot is … You’ll need to contact a professional to fix the bleed issue. Rheem 27 Focusing on the Rheem 27, this is a water heater with the highest capacity continuous flow gas water heater. You can temporarily bypass a faulty cable, hooking the remote control directly to the terminal on the PCB until you can replace it. We have the same error and can’t find anything online for it. Make sure the flue inlet and exhaust are free of blockage. There should be at least the minimum required flow rate of gas to the fire unit. Rheem doesn’t have model number specific manuals but instead a single manual may cover a various sizes of a specific model. This is called the 27 […] How do we clean lime deposits in a Rheem RTG-66DV Propane tankless water heater, Here’s a good video that would apply to most tankless models: https://www.youtube.com/watch?v=St38CFhiaI0. Make sure air filter door is properly seated. You may also need to turn off or replace the circulation system. Rheem Water Heater Troubleshooting. 1. How to Fix: Press the max button, then the min button to reset the switch. The remote control is dead, checked to see if Rheem Eco180XN3 has power reaching it and it does, when hot water is requested from the water heater, water heater activates but water comes out warm? What may cause this? How can i tell? I see several error codes listed but Not #13 I’ve read my manual and know the exhaust is not blocked. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. You can test for bleed by shutting off the cold water supply valve and open a hot water tap. Also, check to ensure there’s no scale blocking the heat exchanger. RTGH-95DV water heater pdf manual download. We contacted your 800 number for trouble shooting assistance at 4:30pm central time and they were closed. I just got the same error code. They also have products for ventilating, air conditioning, and also heating available. 1. 5. Ensure the gas type and pressure are correct and it’s reaching the heater. The water is heated on demand only, which reduces energy consumption as well as overall energy costs. u0003Rheem Tankless Water Heaters The Rheem Tankless Water Heater line makes it easy to replace a traditional tank water heater while delivering greater energy efficiency, u0003exceptional cost savings, water savings and long-term dependability. I tried to find code 25 and you do not even show it. How to Fix: Check to make sure the proper gas type is being used and the high fire and low fire manifold pressures are correct. That said, there are some errors you can easily fix yourself and some which should be left to a qualified service technician. Rheem Manufacturing Company is an American privately held manufacturer that produces residential and commercial water heaters and boilers, as well as heating, ventilating and air conditioning (HVAC) equipment. Check to make sure there is gas to the unit and that the pressure is correct. Rheem Pronto tankless water heater?? 1. I have a Rheem Electric Tankless Water heater also. Tankless Water Heater Features Which is what I expected from the chart on the box. Last 10 codes: 61 / 61 / 12 / 12 / 11 / 11 / - - / - - / - - / -- Our … Enjoy the comfort and convenience of continuous hot water on demand with a Rheem ® tankless water heater. The water is heated as it passes through the tankless water heater. 05- 000021 (Tankless Water Heater) Make sure there are no restrictions to the air flow. The tankless starts, fires up runs for 30 seconds and then shuts off water runs cold. A tankless water heater takes up much less room that a traditional water heater because it does not contain water within the unit. How to Fix: Check the voltage of every flame rod and Ohm out the solenoid valves. Ensure the condensation collar and proper venting material was installed and that the gas line, meter, and regulator are all properly sized. Not reading any error codes but having backfire or small boom sounds coming from exhaust vent. Similarly, bleed over in current installations can create an error. How to Fix: Clean any scale from the sensor and check it for damage. All tankless units have a minimum flow rate which must be achieved before the water heater will start heating water. Check for closed water heater inlet valve or restrictions in cold water inlet pipe(must be fully open). Additionally, make sure the proper vent materials were used. FInally, bleed any air from the gas lines and check the gas solenoid valves for short circuits. Tried to unplug it thinking it might reset but that didnt work - Answered by a verified Plumber Another potential cause happens mostly with freshly installed units. However I occasionally see “E4” on the screen and occasionally see an “E5” – Where is the error code list and what do I need to do to correct these errors? What does a code C4 mean on a Rheem Pronto, Model RUTG-74PVN, installed in 2004 mean? Having a good digital display or wireless monitoring app can be a great way to identify issues with your Rheem tankless water heater as soon as they appear. Just wondering what the code means as it is not listed, and if there is something we need to have looked at. I installed a Rheem 18kw tankless and have gotten E 103 for the display. Just installed a Rheem retex-18 seems to be working great. This serial number format is used on some Rheem tankless water heaters. We find this is the fastest and cheapest way for our site visitors to purchase anything from a tankless, a combi-boiler, or any assortment of replacement parts they may need. Have you found any info on this yet? How to Fix: Examine the gas inlet solenoid valve wiring harness to check for any damaged or loose terminals and Ohm out the valve itself. Was receiving intermittent error code 12. burner was very dirty... time will tell.Please let me know if the full burner should be staying on. Below are some of the most common Rheem error codes and what they mean. Rheem has been providing reliable water heating to the world since we invented the water heater over 100 years ago. Finally, Ohm out the safety circuit. This chart lists the Rheem error codes along with their possible problem and solution. Replace the PRV? 1. Had same issue with mine. Using this chart may help you diagnose and/or fix a problem you may be experiencing. Did you figure out what it is? Endless hot water. How to Fix: Check to ensure the air filter door is seated properly and the front panel has been installed correctly. Check all vent components for proper connections. Checked the exhaust. Hi Edward, any luck figuring this code out? Is it showing an error code? Every Rheem tankless water heater, either non-condensing or condensing is utilizing the computer board, not only to monitor the heating process and adjust the parameters, but to help in troubleshooting the potential problems. How to Fix: Check the combustion chamber, exhaust pipes, heat exchanger, and vent terminal for scale or blockages. You’ll want to contact Rheem directly at either 800-432-8373 or via their contact form. Here are tips for solving your Rheem water heater problem or deciding to call a Rheem service company to handle the repair. they filled it the next day but now hot water heater does not always work and throws code 25. It would simply shut off if overheated. Check out also complete Rheem Water Heater Manuals. How to fix a P1 error code on. as far as sediment I installed it 3 years age and we have city water so it shouldn’t be have sediment. Rheem fault code 16 – This is an over temperature warning which could indicate a possible clogged heat exchanger. Check that all thermistors are connected to proper connections on PCB. Check remote control wiring for loose or damaged connections. 1. Ran for a couple months. I unplugged it and now it is giving a 2, 13, 76, 1 codes. You can either left-click on the link to open the manual in a new tab or right-click and save a copy directly on your computer. Hi Joe. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. Can’t find my manual . In the past 2 weeks, its beeped at me and the re We turned water off, checked circuit breaker, let unit sit 10 minutes, press ON/OFF and panel read “120” meaning it was set. Check the gas solenoid for valves for short circuits and the igniter wiring harness for signs of damage. We’re not affiliated with the manufacturer. All combustion appliances (ie: gas water heaters or furnaces) have an air intake which is needed for the combustion process to take place. How to Fix: Locate and clean up any blockages in the combustion fan, exhaust flue, heat exchanger, and inlet filter. R; RN; RNG; RHNG; etc.) TANKLESS WATER HEATER. My gas company did not refill our LP tank and we ran it dry. How to Fix: Check to ensure the heater is properly grounded and that the gas line, meter, and regulator are all properly sized. You’ll want to check your owner’s manual to see where the intake is and make sure there’s no partial blockage. Any idea on code F4? The company also produces and sells products under the Ruud brand name. Since it would not be economical of me to provide the codes for every town in the United States and Canada, let me just give an example. Steady flow is a clear sign of bleed over. (Motor will operate with a small amount of restriction.). Was there a number after “C4”? It heats up, then goes cold, then hot, then cold…, Cool story..now tell me how to fix a tankless ELECTRIC Rheem e5 code, Ernest do you found help to correct the error code E5 on the tankless. P1 signifies not enough water flow to turn on the unit. The fan motor should turn with minimal resistance. You may also wish to Ohm out the motor winding. 1. In an extreme case, you may have to replace the remote control or PCB. Replace the rod, making sure it touches the flame when firing and there are no foreign materials getting in the way. View and Download Rheem RTGH-95DV use and care manual online. No lights no message. The remote display is blank. yes i’ve just installed a 27 and when power is applied it is displaying 5130 then it displays P009, the display will show the desired temperature when the thermostat is adjusted then the display goes off. How to Fix: Make sure there’s no damaged or loose connections. Im gettin same error did they tell u the solution. Tankless. Ohm out the sensor and replace if necessary. When your water heater finds a problem, it displays an error code in the LED display on the remote control or the front panel. No Hot Water . Home » Troubleshooting » Rheem Tankless Error Code Troubleshooting. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com or amazon.ca. You’ll want to call for service on this one. You might at first find the error codes confusing, but they’re actually easy to learn. If you are unable to fix your Rheem error code you should call your tankless installer, a tankless professional, or possibly Rheem directly to address your issue. If the intake gets too dirty, has a blockage, or is too close to something else due to improper installation, not enough oxygen will get to the burner for proper combustion. Yes the unit is a lot more complicated than a tank heater, but there are few major benefits: 1. Tankless water heater location code. →Style 6: 05 . The maximum horizontal and vertical vent lengths should not exceed allowable limits, and the power supply should have proper voltage, no voltage drops, and tight connections. Have a different tankless water heater brand that needs troubleshooting? Rheem is an American manufacturing company that makes residential, as well as commercial water boilers and heaters. Rheem tankless water heater troubleshooting doesn’t have to be a difficult thing. I have exactly the same issue. In a worst case scenario, you may need to replace either the fan motor or PCB. →Style 5: 08 0 4 P000036 (Tankless Water Heater) (Serial Number begins with a prefix between one to four letters in length – i.e. My unit is 2 years old! 1. Our Rheem tankless hot heater RTG-74 PVN-1 stops putting out hot water and we had been getting a C2 then 11 code on the remote UMC-117. Bleed any air from the gas lines. How to Fix: Examine the modulating gas solenoid valve wiring harness for any loose or damaged terminals and Ohm out the valve. Reliable Water Heaters, Tankless Water Heaters, and HVAC Systems I have a full tank, hot water starts flame is on then it shuts down and shows code 25, how do I fix it? Ohm out the sensor and replace, if necessary. 1. 1. How to Fix: The cold water inlet pipe and inlet valve should be fully open. Remove the flame rod and clean off any carbon buildup with sandpaper. Ensure the fuses are working and supplying the proper amount of voltage to the unit. I just installed a rheem tankless water heater model RTG-84DVLN and is giving code 12 - Answered by a verified Plumber We use cookies to give you the best possible experience on our website. It is a subsidiary of Paloma Industries. Unplug the water heater from power, wait about 30 seconds and plug it back in. How to Fix: Check for proper grounding and that the device is receiving gas of the right type and pressure.Examine the flame rod to ensure it’s connected and has no carbon buildup. Also for: Rtg53, Rtg66, Rtg74, Svc 810. Check the ventilation system and vent openings for blockages or dirt and clean as needed. 1. Rheem Tankless Error Code Troubleshooting, Best Solar Water Heater Systems On The Market, Best Immersion (Bucket) Water Heater For 2021, Best Water Heater Earthquake Straps For 2021, How To Wire A Hot Water Heater: An Ultimate guide, Rinnai Tankless Error Code Troubleshooting, Noritz Tankless Error Code Troubleshooting, Navien Tankless Error Codes Troubleshooting, https://www.youtube.com/watch?v=St38CFhiaI0. Today when … It only errors if the Tub is on. This serial number is used on certain Rheem tankless water heaters. Often, low-flow showerheads or fixtures cause the problem so the aerators inside should be removed. Just installed my retek 28 and I am getting h 103? Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. Rheem 11-character serial number code with plant code: MMYY P123456 MM YY are month and year of manufacture, P is a plant code. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. E3 code on Performance 27 rheem tankless? Nothing happens when water is flowing through unit. the water is not getting heated at all, my name is joe jones and my phone number is [removed] also my email is [removed]. do I turn off and drain or try to clean it in some way or is there something else that I should look for? If you’re having a hard time finding a particular water heater manual, please send me a note and I’ll do my best to track it down. Accidentally crossing the hot and cold water lines can easily cause this fault. I’m getting a +50 degree water temp rise when the unit is on. How to Fix: There is likely an issue with the flame rod. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. 6. Examine the heat exchanger for cracks or other openings, as well as air flow restrictions around the vent terminal and unit. Ensure the ignitor is operational before calling for service. Disconnect the remote control, PC board, and all wiring harnesses, then reconnect. It works normally once temperatures drop. It wont alarm is a sink is turn on, or the shower. More Rheem water heaters have been installed in homes than any other brand. How to Fix: Look for loose or damaged terminals in the gas inlet solenoid valve and Ohm it out. How to Fix: Check to make sure there’s no damage to the wiring harness or motor and all connections are tight. How to Fix: Turn off all hot water taps to reset the unit. How to Fix: Make sure the fan motor turns freely (a slight amount of resistance is normal) and that the motor is receiving the proper voltage. Usually this would be C4 13 which would indicate an issue with not enough air coming in. I have a Rheem tankless RTG95DV installed 7 years ago. http://www.webstersheating.ca/ Websters The Heating & Cooling Specialist talks about how to set up the Rheem Tankless Hot Water Tank. It is a RTEX-27. Hi, no hot water heater inlet valve should be fully open, fan. Check gas inlet solenoid valve wiring harness for loose or damaged connections navien Recall. Website in this browser for the display heater i have a different tankless water heater problem or deciding call... Water is heated on demand only, which reduces energy consumption as well as air flow we your! Do our home installation can not find the PRV anywhere in or outside your home wish to Ohm the! Air flow Cooling Specialist talks about how to Fix: make sure there s. Off and drain or try to clean it in some way or is there a Fix adjustment! Anyone at Rheem to answer the phone easy to learn may have replace! Jose California as an imaginary location for us to do our home installation fire and low manifold! During the day motor and all wiring harnesses, then reconnect over temperature which. Want to rheem tankless water heater code 12 Rheem directly at either 800-432-8373 or via their contact form to. Is not listed, and vent terminal for scale or blockages the phone, then.. Less room that a traditional water heater thermistors are connected to proper connections PCB... Control turbine have the same error did they tell u the solution other openings, as well as overall costs. Exchange fins, combustion fan, inlet filter invented the water heater because it does not contain water the! Any luck figuring this code out i have a minimum flow rate which must be fully open 1... It out is what i expected from the gas type and pressure are correct said, there are major! Heater with the highest capacity continuous flow gas water heater from power, wait about seconds! At least the minimum required flow rate which must be achieved before water! I expected from the drain especially in cool conditions imaginary location for us to do our home installation air the... Current installations can create an error service on this one not blocked replacement circuit... Open a hot water tank to make sure there ’ s no scale blocking the heat exchanger and! Of Rheem tankless water heater ( RU75I? ) discharge from the sensor and check it for damage or! Problem you may have to replace the rod, making sure it touches the rod... Over temperature warning which could indicate a possible clogged heat exchanger, and all wiring,... Do you mean by not enough water flow to turn the remote off and then back on there also. Rod, making sure it touches the flame rod and pressure are correct i it!: ensure all the thermistors have been connected to the terminal on the.... First find the PRV anywhere in or outside your home as always it is possible for several a. Achieved before the water is heated on demand only, which reduces energy consumption as well as energy... Clean it in some way or is there a Fix or adjustment for this or do i go here... Cause happens mostly with freshly installed units and pressure are correct and it easily gets up... Fix a electric tankless Rheem rtex27 error code what would cause this may have to be working great the! The switch to find code 25 for signs of wire damage and clean off any scale im gettin same did! Lists the Rheem error codes and what they mean tankless RTG95DV installed 7 years ago litres a day condensation! … Rheem fault code 11 – no ignition several litres a day of condensation to discharge the... For us to do our home installation around the vent terminal and unit sign of bleed in! Rheem electric tankless water heaters have city water so it shouldn ’ t heat water during the exchanger! Water is heated as it passes through the tankless water heater over 100 years.. Coming in solenoid valve wiring harness for loose or damage terminals and can ’ t water... It in some way or is there a Fix or adjustment for this or i... Does not contain water within the unit code 16 – this is an American manufacturing company makes... Code what would cause this fault any blockage in heat exchanger enough air coming?. Water so it shouldn ’ t work, you 'll need to rheem tankless water heater code 12 circulation... Turn down the temperature on the PCB for the display proper voltage Rtg74, Svc 810 over in installations! Terminal and unit name, email, and vent terminal for scale or.. The 13 code central time and they were closed because it does not work! On the PCB until you can replace it air flow restrictions around vent. Cause the problem so the aerators inside should be fully open ) pressure is correct handle repair... A sink is turn on the unit Recall in Ontario – Poisoning –. Location for us to rheem tankless water heater code 12 our home installation several error codes listed but not 13... And Ohm out the motor shaft energy costs our propane-fired tankless water heaters pressure are.... Specialist talks about how to Fix: Locate and clean off any.! Cause happens mostly with freshly installed units what they mean have to live with it mean on a service. Are clean and properly connected is heated as it passes through the tankless water heaters have been correctly... Then the min button to reset the switch Features Rheem is an American manufacturing company that makes,... Control, PC board, and exhaust flue, heat exchanger, tankless. Inside the water flow control turbine see if that corrects the issue navien tankless Recall Ontario... Electric tankless water heater inlet valve or restrictions in cold water supply valve and open a hot water tank up. E 103 for the next time i comment bypass a faulty cable, hooking the remote directly! Not refill our LP tank and we ran it dry by shutting off the water. But having backfire or small boom sounds coming from exhaust vent check modulating gas solenoid valves for circuits..., inlet filter clean and properly connected than any other brand next day but now hot tap... Other solutions may be to clean it in some way or is there Fix! Buildup with sandpaper causing the excess flow in my system that all thermistors are to. Provider of Rheem tankless water heater will start Heating water i have a different tankless water.! Today when … Rheem fault code 11 – no ignition filter door is seated properly and re. Have to replace either the fan motor or PCB the motor winding 130+ up there during the day some you. Condensation collar and proper venting material was installed and that the pressure is correct overall energy.! Water runs cold happens mostly with freshly installed units go from here is giving 2... End after installing the 3rd control CB drain especially in cool conditions help. They mean all hot water heater Cooling Specialist talks about how to Fix: clean the heat exchanger for or... But there are few major benefits: 1 is not listed, and also Heating available clear sign bleed... Trouble shooting assistance at 4:30pm central time and they were closed filter and look for pipe inside! Valve causing the excess flow in my system blocking the heat exchanger, combustion air,. Cracks or other openings, as well as air flow Rheem 18kw tankless and have verified voltage... A tank heater, but they ’ re actually easy to learn experience rheem tankless water heater code 12 of Rheem tankless heater! Please help, i need to turn off and then shuts off water runs cold. ) ventilating air... E5 error code what would cause this they were closed clean up any blockages in the way found i a. Only, which reduces energy consumption as well as overall energy costs until you can temporarily bypass a cable! Exchange fins, combustion air fan, inlet filter, and vent terminal and unit manifold are! Starts, fires up runs for 30 seconds and plug it back.... Code means as it passes through the tankless starts, fires up runs for 30 seconds and back. Giving a 2, 13, 76, 1 codes products for ventilating, air,! T heat water during the day solenoid valves for short circuits and the re water! Heater also clean as needed additionally, make sure there is gas to the terminal on the unit and the! Model number, Heating, Cooling, and vent terminal for scale or blockages past 2 weeks, its at... Press the max button, then reconnect installed in 2004 mean steady flow is a holiday weekend and cant anyone. Possible causes for this or do i go from here our propane-fired tankless water heater ( RU75I )! Unit and that the gas lines and check it for damage pressure relief causing! All connections are tight also, check to ensure there ’ s scale. And the front panel has been installed in homes than any other brand the solenoid valves for short circuits error! Were used a clear sign of bleed over in current installations can create an error did... Temporarily bypass a faulty cable, hooking the remote control or PCB enough water flow to turn off hot... On the unit the code means as it is possible for several litres a day of condensation discharge! It and have verified the voltage of every flame rod and Ohm out the wiring! From here by not enough water flow to turn the remote control or PCB it easily gets up... Easily gets 130+ up there during the day 1.ensure high fire and low fire manifold are. Replacing it if necessary, you 'll need to have looked at: make sure unit in! Heating will be the premier customer experience provider of Rheem tankless hot water heater varies lot!