VENTING DANGER Vent this water heater in accordance with these instructions. Turn the water heater off and disconnect it from electric power. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. The Rheem PROTECH Inlet Water Filter replaces the inlet water filter on your Rheem tankless water heater. AP18733 REV. The company may even send a technician to your house or recommend a solution. CONTROL PANEL57 B. LCD DISPLAY DESCRIPTIONS.57 C. USER'S INFORMATION A. Search by serial number to find the correct part. Blocked Air Intake 5. Once you rinse the air filter, leave it in the air to let the filter dry. Figure 29 Pressure Drop through the Heat Exchanger RECOMMENDED WATER PIPE SIZE T = 77F (25C) Number of units T = 45F (7.2C) Flow Rate (GPM) Water Velocity (ft/s) Pipe Dia. 20. . Ensure fan inlet hole is completely open after turning the power OFF and ON. I have the option to let our new tankless water heater intake indoor air (it will be installed in a semi-finished basement), or intake it from the outside. To avoid scalding, wait for water heater to cool before operating the relief valve. DO NOT use a closed type expansion tank. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Analytical cookies are used to understand how visitors interact with the website. Turn the dial to Itnl to turn on Internal Recirculation Mode, or Etnl to use External Recirculation, or tt24 to use Title 24 application, or bYPS to use Bypass Valve. Cement must conform to ASTM D2564 for PVC and ASTM F493 for CPVC pipe. SERVICE TECHNICIAN The following maintenance should be performed by a qualified service technician annually: General Attend to any reported problems. PLEASE READ CAREFULLY AND KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE. A tankless water heater is considered the most modern heating device to supply continuous hot water flow. If the issue persists even after resetting, get in touch with the manufacturer or a professional water heater specialist. Turn the power supply on at the circuit breaker. [40 kg] when fully plumbed and full of water). Attach a garden hose to the drain valve in the hot water outlet line and set the other end of the hose to the nearest floor drain. The most common reasons why your Rheem tankless water heater is not working include: System overload Blown fuses Tripped circuit breakers Tripped reset button Faulty thermostat and thermistors Blocked vents and air intake pipes Sediment and lime build-up Closed or partially on valves No gas supply Loose wire connections At Rheem, we strive to innovatebest-in-class products to lead the industryin environmental improvements. Clean around the water heater by removing dirt, debris, and lint using a vacuum cleaner. Thank you Richard, Martin, and Walter for your counsel. Standard Mode Air & Gas Mixing 1. Next, turn the dial until the desired end time appears on the display. This is a complete guide on Rheem tankless water heater maintenance. A. Check the vent terminations for obstructions. Relief Valve Care Instructions. BEFORE OPERATION. H. REMOVING A WATER HEATER FROM A COMMON VENT SYSTEM..25 I. UNPACKING THE WATER HEATER25 J. WALL-MOUNTING THE WATER HEATER..26 VENTING OPERATING SYSTEM INSTRUCTIONS.57 A. If resistance is zero, replace the sensor. 2. PVC Horizontal or Vertical Concentric Vent Termination Kit for High Efficiency Tankless Gas Water Heaters . Have combustible materials been cleared from the installation location? Higher efficiency water heaters and new government regulations Make sure that the air intake screen (LDO View This Document, Error Code TroubleshootingTankless Water Heater Error Code List Code Fault Remedy 1 of 3 Ensure heat exchanger fins, fan, and air intake are not blocked. Fits These Models Dont forget to clean the remote control as well. Failure to properly take factors such as water heater venting, piping, condensate removal, and wiring into account before installation could result in wasted time, money, and possible property damage and personal injury. Check the burner assembly. Incorrectly-sized expansion tank IMPORTANT Do not connect the water heater to any heating systems or components that have been previously used for non-potable applications. Here might be one more reason to add ducts to a HPWH: The plumber installers put the HPWH with the output fan directly facing the basement wall 7.5" away. Just pull out the water filter by unscrewing it from the base of the cold water inlet line and slide the filter out of the line carefully. Plastic Universal Non-Condensing Horizontal Vent Termination Kit for HE and HE+ Tankless Water Heaters. Just use a soft damp cloth and gently wipe it. Factory DHW Set-Point is 120F(49C). https://cleanairhacks.com/author/clean-air-hacks/. Notify a qualified service technician if any problems are found. Refer to these diagrams and the wiring diagrams of any external controls used with the installation when wiring the water heater. To ascertain that the reset button has tripped, check the electrical panel. Index Default Parameter Description 12:Cn oFF Cascade Enables Cascade Mode on the water heater. Rinnai error code 10 indicates that the air supply or exhaust system is blocked or has some restrictions to disrupt normal airflow or flue gas extraction. A. 3. PAGE . It would lead you to death or personal injury. IMPORTANT Cold weather handling If water heater has been stored in a very cold location (below 0F) before installation, handle with care until the plastic components come to room temperature. If a back flow preventer or a no return valve is used, a thermal expansion tank must be installed on the cold water supply between the water heater and valve. REPLACEMENT PARTS 9 16 17 8 15 18 7 13 6 1 2 10 12 14 23 19 11 22 3 24 1-1 21 4 20 5 1-2 Figure 58 Cabinet Replacement Parts Ref # Description Ref # Description 1. Water Filter Cleaning water heater burner, relief valve, air intake filter, water filter, and venting system be made by a qualified service technician. Error Code Error Code Description Possible Remedies Er:16 This Error Code will go away when the DHW temperature decreases. Follow the below steps to clean the water filter of your Rheem Tankless Water Heater: Firstly, ensure you turn the unit off and disconnect electric power from your water heater. 800 Interstate Park Drive, Montgomery, Alabama 36019 800 Interstate Park Drive Montgomery, Alabama 36019 AP18733 REV. J. WALL-MOUNTING THE WATER HEATER WARNING The water heater must be installed on a wall that can bear its weight (more than 88 lbs. See Figure 23. I dont only provide an answer to this question in that article but also describe how to flush a tankless water heater with vinegar. Theyre an excellent option for homes with a natural gas supply, and they can provide a constant hot water supply for multiple appliances simultaneously. Next, turn the dial to 7:RM. Range: on Common Venting is used, oFF Common Venting is not used 14:T1 oFF Test Mode 1 Used to test the water heater when operating in Internal Recirculation Mode only. Rheem tankless heater puts the diagnosed problem into two categories, i.e., soft lockout and hard lockout. Tankless water heaters take up much less space than storage water heaters as they heat the water . To avoid severe burns, allow water heater to cool. Camplux Pro Residential Tankless Water Heater Natural Gas,5.28 GPM High Efficiency Instant Natural Gas Water Heater, Grey Available for 3+ day shipping 3+ day shipping Rheem Professional Classic Atmospheric Series 40 Gallon Capacity 40,000 BTU Heating Input Tall Gas Water Heater SPECIFICATIONS Model Name Gas Input Rate RTGH-RH11DV RTGH-RH10DV MAX 199,000 Btu/h 180,000 Btu/h MIN 18,000 Btu/h 18,000 Btu/h High Altitude (2,500~4,500ft) 180,000 Btu/h 180,000 Btu/h 35F Rise 11.0 Gal 9.9 Gal 45F Rise 8.5 Gal 7.7 Gal 77F Rise 5.0 Gal 4. OF LOCATION PIN 1 8 2 9 3 10 CN7 LWD1140-14 4 11 5 12 6 13 7 14 BOARD SILK F.S Flame Detect Sensor OP.S Operating Water Temperature Sensor DH.S DHW Temperature Sensor I.S Inlet Water Temperature Sensor BG.S Exhaust Temperature Sensor OT.S Optional Temperature sensor SP. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. We and our partners use cookies to Store and/or access information on a device. The installer may program specific recirculation functions by day and time to circulate and heat water when the user most needs hot water. Remove the hose from the cold water side and screw the cap back in place. 3. T, Installation and service must be performed by a qualied installer. 2. Vent Length 3 in. CONTROL PANEL Press This Button Less than 5 Seconds Cancel/Return Hold This Button More than 5 Seconds When Control Panel Power is ON status Display Mdoe When Control Panel Power is OFF Installer Mode Press this Button Less than 5 Seconds Change DHW set-Point Temperature 100-120F (38-49C) Hold this Button More than 5 Seconds Change DHW Set-Point Temperature 121-140F (49. The recirculation day and time values must be set in Step 2, SEt. Gaskets and seals in the system may be damaged, possibly resulting in substantial property damage. NOTICE If hot water is not used for more than thirty (30) hours, the recirculation program will be stopped and the water heater will automatically go into Vacation Mode and display the vacation icon . The cookie is used to store the user consent for the cookies in the category "Analytics". Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. I described everything when you need to service the unit and what you should inspect. Water Heater Rheem RTGL74DVN-1 Specifications 74 residential tankless series, endless hot water for 3 bathroom homes, indoor / outdoor natural and lp models 19,000 - 199,900 btu max (2 pages) Water Heater Rheem RTGH-95DV Use And Care Manual Tankless water heater (72 pages) Water Heater Rheem RTGH-RH10DV Service Manual 1 SEE HOW PROTERRA STACKS UP AGAINST OTHER WATER HEATERS5 RHEEM PROTERRA HYBRID ELECTRIC WITH LEAKGUARD STANDARD ELECTRIC STANDARD GAS SIZE This website uses cookies to improve your experience while you navigate through the website. TABLE OF CONTENTS USERS INFORMATION.7 A. Burner Overheat Switch Open Press the Power button to clear the Error Code. Performing this simple maintenance will improve the efficiency and life of your water heater. Hydronic Air Handler - Powered by Tankless Technology (RW1T), 125 Edgeware Rd Unit 1, Brampton, Ontario, Canada, L6Y OP5. SPECIFICATIONS A. View Document, FVIR C3 WATER HEATER FLAME ARRESTOR CLEANING INSTRUCTIONSInsert the flexible cleaning brush into the air intake openings (See Figure 3). Does installation location allow for proper service clearances? Best of luck! . Recirculation Inlet Filter Disconnect the power supply to the water heater. Circulation Pump 18. The recommended starting temperature is 120 F (49C). D. TROUBLESHOOTING To save time and money, review the following initial diagnostic steps before calling for service. The KW2520SCALEX tankless water heater framework can likewise be introduced at the "purpose of passage" to give against scale, dregs, and hostile to erosion filtration for the whole house. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. 3. Remove all sides of the shipping crate to allow the water heater to be lifted into its installation location. The most common reasons why your Rheem tankless water heater is not working include: Your Rheem tankless water heater may need to be reset if it is overloaded, has an error code displayed, or the reset button keeps tripping. Become a GBA Prime member and get full access to GBA articles, enyclopedia, videos, CAD library, and more. Rheem RTEX-18 18kW Tankless Water Heater. Connecting several water heaters together requires proper sizing of the intake and exhaust pipes. Check the gas pressure. If no obstructions are found, reset the water heater by pressing the power button. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. A dedicated Air Intake The recirculation pump operates on either timer settings, custom schedule or on-demand. The major Rheem tankless water heater maintenance procedures include: Descale the heat exchanger. DO NOT locate the exhaust vent or intake pipe terminations where exposed to prevailing winds. These water heaters can be common vented. Free Shipping On orders over $99 An example of data being processed may be a unique identifier stored in a cookie. And lastly, its recommended to check the water heater burner, venting system, water filter, pressure relief valve, and air intake filter annually. And the best part? Now, bring the water filter to your sink and wash it with water. This is the maximum allowable relief valve setting for this water heater. The cabinet must be closed while the water heater is running. The following section details the various Recirculation Timer Functions. Yes, you should maintain your tankless water heater annually. How far apart must my HRV fresh air intake be from exhaust? Inspect the entire length of the intake pipe to ensure piping is intact and all joints are properly sealed. The solution would be to reset it to factory or default settings. Necessary cookies are absolutely essential for the website to function properly. CUSTOMER INSTALLATION RECORD FORM The following form should be completed by the installer for you to keep as a record of the installation in case of a warranty claim. Check the Power (120V 60Hz) Ensure the water heater is connected to a properly rated power supply. B. 11.5" [292mm] 4.6" [117mm] 2.6" [67mm] 3.2" [81mm] 6.8" [173mm] 10.2" [260mm] 13.6" [346mm] 28.7" [728mm] 6.1" [156mm] 5.4" [136mm] 2.4" [60mm] 4.0" [101mm] C. DIMENSIONS Figure 2 Specifications and Dimensions DESCRIPTION DIAMETER A Exhaust Outlet Pipe 3" (7.6 cm) B Air Intake 3" (7.6 cm) C DHW Outlet Adapter " (1.9 cm) D Condensate Adapter " (1.2 cm) E Recirculation Return " (1.9 cm) F DHW Inlet Adapter " (1.9 cm) G Gas Inlet " (1. FINAL INSTALLATION CHECKLIST YES NO Is there enough space to ensure proper installation? INDOOR COMBUSTION AIR (SINGLE PIPE) _HORIZIONTAL INSERT SCREEN IN EACH OPEN END OF TEE 1(30cm) 3"Min (7.5cm) MAINTAIN 12"(30cm) MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE, WHICHEVER IS GREATER. Check operating temperature. Air Filters,Air Filters. 3. [Fixed], Honeywell Water Heater Gas Valve Reset (How-To Guide), 15 Common Rheem Error Codes [Ultimate Guide], Rheem Tankless Water Heater Code 11 (Fixed), Top 5 Navien Tankless Water Heater Problems [Fixed], Whirlpool Duet Dryer No Power To Control Panel (Causes + Solutions), Head to the electric panel and locate the water heater circuit. (A typical gas-fired tank wastes 40 to 50 percent of the fuel it burns.) Rheem produces five series of gas (both propane and natural gas) and electric tankless water heaters. Dealing with a tankless water heater means playing with hot water or electricity. Otherwise, it will damage the water filter or deform it. 2. Address 1100 Abernathy Road, N.E. Rheem RTGH-95DVLN 9.5 GPM Tankless Water Heater. Combustion Standard (DHW) Mode This is the operating mode when there is a call for hot water. I recommendlooking at this pageand seeing each model and its prices. 1. Dangerous? Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. And if you need help with how to adjust the temperature or if youre experiencing any troubleshooting issues, feel free to call a professional plumber for help. Conversely, if you set the temperature too low, you might get a higher flow rate, but the water might need to be hotter. August 2, 2022. Navien offers models of tankless water heaters that use either condensing or non-condensing technology. Air Intake Filter 5. If Error happens again: 1. What Are Hard Lockout and Soft Lockout in Rheem Tankless Water Heater? Check whether the gas supplied is NG or LP. The pros of Rheem tankless water heaters where do I begin? The display showed 29 read more Once you drain every single drop of water, detach the garden hose from the drain valve and close the drain valve. Yes, Rheem tankless water heaters have a filter named water filter. Wash the inlet water filter: Remove the filter and clean it under running water. Set the gas shut-off valve to the close position. Such product failures ARE NOT covered under warranty. Clogged Exhaust 6. Check the Power Source Make sure the power cord is properly connected. Monitor the water flow pressure. WARNING OPERATING INSTRUCTIONS 1. What Should I Do If Resetting my Rheem Water Heater Does Not Resolve the Issue? 3. The unit should resume normal operation. Install the outdoor air duct for combustion air. Ensure bracing is undamaged and in good condition. DANGER DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Clean the combustion chamber. This feature has been temporarily disabled during the beta site preview. Rheem, a leading global manufacturer of water heating and HVACR products, announces the launch of Rheem IKONIC, a super high-efficiency, condensing, gas tankless water heater. Tankless electric heaters run between $90 and $900. DO NOT install a relief valve with a pressure rating greater than 150 psi (1,034 kPa). Theyre built to last; their customer service is second to none if you ever have trouble. 4.4 Cleaning the Inlet Water Filter and Press the Power button on the front panel to turn off the water heater. These cookies will be stored in your browser only with your consent. Check for leaks: Water, gas, flue and condensate. Take off the lid of the panel, and you'll find the reset button hidden below the insulation. However, its essential to consider both the pros and cons before purchasing. I had a Rheem Tankless Gas Water Heater install yesterday. WARNING To control thermal expansion, a thermal expansion tank should be installed in systems with an installed backflow preventer. The water heater is preheated and protected from freezing. The air filter of the water heater also demands regular inspection. Do not return to your home until authorized by the gas supplier or re department. Repeat this procedure until the values obtained on the combustion analyzer agree with those stated in Table 18. # Step Eight: Attach the caps and put everything back in place. Check AGM operation. ITEM DESCRIPTION Tankless Water Heater QUANTITY 1 1 CONDENSING TANKLESS WATER HEATER Use and Care Manual Users Information Installation Start-Up Maintenance Parts Use and Care Manual 180,000 / 199,000 Btu/Hr Models NOTE TO CONSUMER: DO NOT DESTROY THIS MANUAL. Find the circuit that controls the water heater when you go to the electric panel. It does not store any personal data. Rheem support. Step 1: Set the Recirculation Timer Type. However, keep in mind the longevity of a tankless heater and the significant energy savings will pay for the system over time. No one but a professional service technician should attempt to install, service, or repair this water heater. Aint that neat as a pin? Top Choice. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Blockage In The Condensate Drainage System 6. Press to return to Standby Mode. Corroded Heat Exchanger 2. If the error continues to occur, call a qualified service technician or the gas supplier to check the water heater. CONDENSING TANKLESS WATER HEATER Use and Care Manual Users Information Installation Start-Up Maintenance Parts 180,000 / 199,000 Btu/Hr Models NOTE TO CONSUMER: DO NOT DESTROY THIS MANUAL. These cookies ensure basic functionalities and security features of the website, anonymously. I recommend you hire a certified plumber to check the venting system if you are not easy to do that. So, the key is to find the sweet spot thats just right for you. This tankless water heater filter system is designed for pre-filtration for all tankless and traditional hot water tank systems. Visually inspect the intake piping for any signs of blockage. Make sure to weigh these against the benefits before making a decision. If it has flipped off, flip it on, Remove the panel cover and locate the reset button behind the insulation, Press it inwards until it clicks in place and then releases, The water heater should power on and operate correctly. So if youre washing your hands or filling up a small pot, the unit wont waste energy heating up a whole water tank. Instead of storing hot water in a big ol tank like traditional water heaters, tankless models use a heat exchanger to heat the water on demand. Tankless water heaters are smaller and more efficient than traditional water heaters. The supply line must be sized for the maximum output of the water heater being installed. 8. 2. Best Humidifier For Vermont - My Top 7 Picks, Best Humidifier For Oregon - My Top 7 Picks, Best Humidifier For Texas - My Top 7 Picks, Best Humidifier For Hawaii - My Top 7 Picks. Rheem On Demand Water Heater Troubleshooting Quick Fixes. Doing so could result in product damage, severe personal injury, or death. Clogged Air Intake Filter 4. The boiler produces 71 gallons of hot water per hour and has an energy factor of 0.58. There are arguments for investing in a tankless water heater including the fact that it generates hot water only when you need itand for as long as you need itsaving 27 to 50 percent of fuel costs over tank-type heaters. You will need a small bucket and some towels to clean up after spillage. On Rheem water heaters, the reset button is usually a red button located near the thermostat, at the middle of the limit switch. (10.4m) 90ft. Rheem 240V RTEX-13 Tankless Water Heater. When you need a smart, dependable contractor or plumber, count on our team of independent professionals for your heating, cooling and water heating needs. Depending on your tankless water heater's capacity, too many simultaneous hot water applications (such as multiple showers running) can overload your water heater. Disconnect the electric power to your unit at the circuit breaker box. Check if DHW pipe is blocked. Here what I am going to break down in this section: Safety Tips: Before performing any maintenance or servicing workflow, you must turn off the water heater and disconnect the electric supply to the heater. For endless hot water when you need it, and energy savings, consider a tankless water heater installation from a top-rated company on Angi. E. VENT TERMINATION 1. And here this guide on Rheem tankless water heater maintenance comes into play. Rheem High Efficiency Tankless Gas Water Heaters save up to $1,100 over 12 years10, and some qualify for rebates Save Space Compact sizes and outdoor models increase valuable usable space in your home Save on Installation 1/2 gas line compatible up to 24 ft.4 saves money and time on installation to an existing system Save Water NOTE: The pipe size must not be less than (1.9 cm). Now, remove the filter and wash it to eliminate sediment jammed in the inlet that is producing problems. User / Owner: Contact the original professional service technician if the water heater needs repair or maintenance. Required fields are marked *. $700.00. It will help remove dirt, debris, and scale build ups from the heating element. PLEASE READ CAREFULLY AND KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE. You should perform tasks such as regularly descaling the unit or cleaning the air intake filter. Now, its important to note that the maximum temperature setting on most models is 140 degrees Fahrenheit. Then, pull the access panel cover. Tankless water heaters will build up calcium and debris on the elements and the filters inside the machine. See Figure 57. Yes the safe bet is to install a combustion air intake and some code enforcers will require one. We also use third-party cookies that help us analyze and understand how you use this website. How To Fix Error Code 29 on Rheem Tankless Water Heater [7 Easy Solutions] 1. DO NOT use this water heater unless it is completely filled with water. You can use a soft brush to remove sediment buildups. 4. Finally, turn on the gas shut-off valve and end with turning on your water heater. If the problem persists, replace the main control. You may need to replace the air filter switch assy or the PCB. Check DHW sensor at DHW outlet. b. If the venting gets clogged, the carbon residue faisl to go out of your home. If applicable, check the condensate neutralizer and ensure it is full of condensate neutralizing marble chips. A well-maintained Rheem tankless water heater works properly for the most part. 3. (12.8m) 95ft. Lastly, put the access panel cover back into its place. You can use mild detergent and a soft brush to wipe away dirt and debris. Rheem RTG-95XLN 9.5 GPM Tankless Water Heater. Mixing Valve 19. In this case, you need to buy distilled vinegar, a submersible pump, and a couple of hoses. Blocked Neutralizer 5. This won't delete the articles you've saved, just the list. If you set the temperature too high, the unit might be unable to keep up with the demand, and youll experience lower hot water flow. Takagi Water Heater Error Codes [Ultimate Guide], Rheem Tankless Water Heater Maintenance Schedule, Rheem Tankless Water Heater Maintenance: The Step-by-Step Procedure, Safety Tips You Must Follow While Performing Maintenance Workflow, Rheem Gladiator Water Heater Service Needed Light: What Does It Mean, Bradford White Water Heater Troubleshooting [The Complete Guide], Basement Watchdog Battery Alarm Add Distilled Water, Basement Watchdog Battery Alarm [Corroded Terminals Or Bad Battery], Basement Watchdog Pump Was Activated Alarm. CONNECTOR NO. Why do tankless water heaters burst? The following diagrams represent some typical direct venting configurations and are included to assist in designing the vent system. Any damages to the exhaust vent pipe should be repaired immediately. Do not use water to clean inside the air conditioner. The surfaces of these products contacted by consumable water contain less than 0.25% lead by weight, as, If the information in these instructions is not followed exactly, Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other appliance. Figure 6 - Vent Termination Detail A B Description US Canadian Clearance above grade, veranda, porch, deck, or balcony 1 foot (30 cm) 1 foot (30 cm) Clearance to window or door that may be opened Direct Vent 1 foot (30 cm) Power Vent 1 foot (30 cm) above, or 4 feet (1. . This includes all related control information. This cookie is set by GDPR Cookie Consent plugin. Ensure electrical power to the water heater is turned OFF. Rheem offers a limited warranty on their tankless water heaters that covers the unit for manufacturing defects or failures for a specified time. Page 13: Cleaning The Air Intake Filter Overall, Rheem tankless water heaters are a reliable and efficient option for homeowners who want a consistent and endless hot water supply. FOREWORD This manual is intended to be used in conjunction with other literature provided with the water heater. 3 inch diameter 90 elbow is equivalent to 5ft. You only heat up the water you need, so youre not wasting any energy or money on heating up the water you wont use. Initial DHW Set-Point range is 100 140F (38 60C). While Rheem tankless water heaters have many benefits, like any other product, they also have some potential drawbacks or cons that you should consider before purchasing. Your water heater may struggle to supply the hot water needed or shut down altogether if it becomes overloaded. Mixing Valve 19. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Incorrect Condensate Line Piping 7. Doing so will result in property damage, severe personal injury, or death. Turn power OFF and ON at the main power switch internal to the water heater. Lets start from the beginning! 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. Initially, fine-tune the water flow or temperature. Rinnai. 36 in. Take the combustion air from outside as you are supposed to . WARNING California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer birth defects, or other reproductive harm.