This puts the units operation at a halt, preventing further issues such as fire hazards when the heater is overheating. Figure 31 Proper Grounding Internal Manual Power Switch 6. By clicking Accept All, you consent to the use of ALL the cookies. Necessary cookies are absolutely essential for the website to function properly. SPECIFICATIONS A. If the problem persists, replace the main control. REMEDIES 1. These units are powered by propane gas and are a good option for homes that dont have access to natural gas but have a propane supply. Its like having your own personal hot water genie its there when you need it and gone when you dont. If you make a mistake, it will burn your skin or cause an electric shock. This is a complete guide on Rheem tankless water heater maintenance. Turn the water heater off and disconnect it from electric power. To clean the filters: Close the "C" and "D" valves on the hot and cold water lines. First, ensure that the unit is powered on. Search by serial number to find the correct part. If you have a choice, definitely take Richard McGrath's advice. the water heater. Install the outdoor air duct for combustion air. Never allow children to run or handle the water heater. 3. To access it, you will need to remove the metal panel on the unit. 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. Gaskets and seals in the system may be damaged, possibly resulting in substantial property damage. When the desired start time appears on the screen, press the button to select and store it. You must be a magazine subscriber to access this feature. BEFORE OPERATION 1. Only your local code enforcement can tell you what they want but in general if you follow the manufactures printed instructions they will be happy. Rheem 18kW 240V Tankless Electric Water Heater $315.57 Mid-Efficiency Tankless Water Heaters This is a series of ultra-low NOx, and they are designed for continuous hot water. How far apart must my HRV fresh air intake be from exhaust? (1.5m) of straight pipe. Rheem tankless water heater maintenance schedule or how often you should maintain the water heater. 3.2. When using PVC or CPVC pipe, all joints must be properly cleaned, primed, and cemented. For example, you need to inspect the condensate drain line daily to make sure the condensate is draining properly. Propane tankless water heaters don't have to use indoor air for combustion. Rheem produces five series of gas (both propane and natural gas) and electric tankless water heaters. If the water heater is to replace an existing water heater, check for and correct any existing system problems, such as: System leaks Location that could cause the system and water heater to freeze and leak. $700.00. Your water heater may struggle to supply the hot water needed or shut down altogether if it becomes overloaded. It is important that this manual, all other documents included with this system, and additional publications including the National Fuel Gas Code, ANSI Z223. An hour after the plumber left, the water stopped heating . A. Multiple units can be common vented. 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. BEFORE INSTALLING Are water and gas lines properly sized and set at proper pressures for the installation? Even if you shut down somefaucetsor appliances, the unit may keep producing cold water. Isolation valve kits are recommended for this installation. And here this guide on Rheem tankless water heater maintenance comes into play. STOP! Front Cover 13. Figure 8 Transitioning from 3" (7.6 cm) to 2" (5.1 cm) Vent Pipe WARNING Do not use bushing to reduce vent size. Clean the water heater and the remote control with a damp soft cloth and mild detergent. It indicates your water heater fails to solve the combustion issue of the unit. Control Panel 17. (in) 1 5 3.75 3/4 9 2 10 4.22 1 18 T = 35F (1.6C) Pipe Dia. All of that said, sealed combustion is preferred. For endless hot water when you need it, and energy savings, consider a tankless water heater installation from a top-rated company on Angi. 8. TROUBLESHOOTING TROUBLESHOOTING CHART PROBLEM POSSIBLE CAUSES POSSIBLE No electrical power to the water heater 1. 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. 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. Power-vent units use indoor air for combustion and simply vent the exhaust to the outside. Rheem RTGH-95DVLN 9.5 GPM Tankless Water Heater. The display showed 29 read more To check the burner: First, use a screwdriver to remove 6 screws that hold the access panel cover in its place. . Compare $ 49 99 (56) Model# RTG20151D-1. B. Figure 45 Setting Start and End Recirculation Times g. Press and hold the button for two (2) seconds to store the time. 3. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Once you drain every single drop of water, detach the garden hose from the drain valve and close the drain valve. These units are powered by natural gas and are known for their high flow rates and efficiency. Part of the Rheem Performance series, this tankless electric water heater saves on space without sacrificing effectiveness. Rinnai vs Rheem Tankless Water Heater- Which is Better? Suite 1700, 30328, Atlanta USA Phone (770) 351-3000 Latest products View all 39 products in search Rheem Manufacturing Company PERFORMANCE PLATINUM Plug-in Heat Pump Water Heater with HydroBoost Download If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. But you can adjust the temperature to a comfortable level for your needs. PAGE . The installer is responsible for all equipment and detailing required by local codes. Also, make sure that there are no plumbing or technical problems such as crossovers. The Rheem ProTerra Hybrid Electric Water Heater is the most efficient water heater on the market, helping homeowners save up to $480 per year in energy coststhat's almost $5,000 over 10 years! Thirdly, drain your water heater. After installing the relief valve and filling and pressurizing the system, test the operation of the valve by lifting the lever. This might be located on the front of the unit, or it might be a remote control thats mounted on the wall. Shut power off to the water heater. The following section details the various Recirculation Timer Functions. Find A Service The 10 Best Tankless Water. And the safety guidelines you must follow when maintaining the water heater. Prices range from about $170 for small gas-fired units to more than $2,000 for high-output heaters that can supply two showers at the same time; $1,000 is about average. GAS DETECTION Figure 51 Gas Detection Error Analysis Tree 3. # Step Eight: Attach the caps and put everything back in place. If resistance is zero, replace the sensor. DO NOT use this water heater unless it is completely filled with water. Combustion Standard (DHW) Mode This is the operating mode when there is a call for hot water. 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. Rheem Tankless Water Heater Code E5 [7 Easy Fixes] 1. What Should I Do If Resetting my Rheem Water Heater Does Not Resolve the Issue? 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 Theyre an excellent option for homes with a natural gas supply, and they can provide a constant hot water supply for multiple appliances simultaneously. Using one in your home has plenty of benefits. And regardless of which type you choose, all models are known for their reliability and efficiency. Failure to clean the heat exchanger as needed by the installation location could result in water heater failure, property damage, personal injury, or death. Heat Exchanger Thermistor Resistance Is Out Of Range 3. However, keep in mind the longevity of a tankless heater and the significant energy savings will pay for the system over time. Recirculation Inlet Filter Disconnect the power supply to the 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. Doing so could result in product damage, severe personal injury, or death. WARNING All joints of positive pressure vent systems must be sealed completely to prevent leakage of flue products into living space. If this code happens to appear on your water heater, you can check these things below: Read also : Noritz Tankless Water Heater Troubleshooting Check both of the exhaust venting and air intakes. Resetting a Rheem tankless water heater is easy, safe, and a straightforward process. This cookie is set by GDPR Cookie Consent plugin. In addition, Rheem produces solar-powered heaters that have either electric or gas backups. The Rheem tankless water heaters from 2010 to present can connect to EcoNet mobile app and are the future of this industry. 5. Tankless electric heaters run between $90 and $900. 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. Ensure the Water heater Cabinet is Closed Ensure the water heater cabinet is closed. WARNING California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer birth defects, or other reproductive harm. Click to see if this part is compatible with your unit. No one but a professional service technician should attempt to install, service, or repair this water heater. Now, remove the filter and wash it to eliminate sediment jammed in the inlet that is producing problems. When you need a smart, dependable contractor or plumber, count on our team of independent professionals for your heating, cooling and water heating needs. Rheem error code 21 means the air intake filter is not working correctly. See Figure 42. f. Turn the dial . Rheem Water Heater Reviews from Consumers Online Rheem water heater ratings show that the general consensus among consumers is this is a top brand. If exhaust gas should leak into the living space: Shut down the water heater. How Much Does a Tankless Water Heater Cost? If you dont flush your water heater, it will corrode the heating element of your water heater. Let me give you a quick rundown of each type. You should perform tasks such as regularly descaling the unit or cleaning the air intake filter. Where Is the Reset Button on a Rheem Hot Water Heater? 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. Rheem offers an exceptional line of indoor air quality products. Visually inspect for leaks around the internal water heater water connections and around the heat exchanger. 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. I had a Rheem Tankless Gas Water Heater install yesterday. Next, turn the dial until the desired end time appears on the display. 3. This includes all related control information. Air Intake Filter 5. If your demand for hot water at a given point is higher than the unit can deliver, it will only supply cold water. (29m) 3 34ft. Flow Rate Limitations - While they can provide endless hot water, they are limited by their flow rate. Open windows for ventilation. TABLE OF CONTENTS USERS INFORMATION.7 A. The manufacturer is not the one who will die in your home . 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. Check the Gas Type (NG/LP) When operating the water heater for the first time, ensure the connected gas type matches that of the gas type of the water heater. F. COMMON VENT PIPING DANGER Common Vented water heaters must be direct vented, with an exhaust vent and intake air pipe vented to the outdoors. Rheem 240V RTEX-13 Tankless Water Heater. New houseAir intake vent is about 4-ft below high efficiency furnace & water heater exhaust vents. PLEASE READ CAREFULLY AND KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE. Yes the safe bet is to install a combustion air intake and some code enforcers will require one. Never keep combustible materials like clothing, flammable liquids, or even cleaning ingredients next to or around the water heater. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Before we wrap up, I want to once again recommend the Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater - it's the best choice if you're looking for an efficient, powerful, durable gas unit. If you follow this water heater maintenance routine, your water heater will offer you years of trouble-free service. Once you drain all the water, its time to remove the water filter. Corrosion or Scale Deposit On Heat Exchanger FAQs: What are the most common problems with tankless water heaters? These sealed combustion appliances are preferred to the old atmospherically vented appliances, since sealed combustion appliances are much less likely to backdraft when an exhaust fan (for example, the range hood exhaust fan) is operating. Check the Power (120V 60Hz) Ensure the water heater is connected to a properly rated power supply. Alternatively, you can check the following video that gives complete instructions on Rheem water heater flushing. Press it down until it clicks in place. Circulation Pump 18. I recommendlooking at this pageand seeing each model and its prices. 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. Call a qualified service technician. Does water heater loop piping meet the. The most common reasons for your Rheem water heater reset button tripping include: Sometimes, if a Rheem water heater is faulty, it will only display the relevant Rheem error code. Figure 16 Common Vented Direct Vent Configurations WARNING All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of " per foot back to the appliance to allow drainage of condensate. Turn off the heater by pressing the on/off switch. 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. Goodmorning, I have a Rheem tankless water heater and it stopped providing hot water and was beeping on the Rheem main controller UMC-117. Check for 120V at the line voltage terminal block Correct wiring inside the water heater cabinet using located inside the water heater cabinet the wiring diagram in the installation manual Inspect the fuse. Mount the bottom of the water heater a minimum of 18" (457 mm) above the floor of the garage, to ensure the burner and ignition devices are well off the floor. Read, understand, and follow all wiring instructions supplied with the controls. These cookies ensure basic functionalities and security features of the website, anonymously. Low profile 34-inch design is lighter, easier to handleand leaves room for optional accessories, Integrated control board features diagnostics, managesall operational functions and provides hookups forhumidifier and electronic air cleaner, An insulated blower compartment makes it one of thequietest hydronic air handlers on the market today, A variety of cooling coils and plenums designed to usewith the Hydronic Air Handler are available as optionalaccessories for air conditioning models, Industry best! 2. DO NOT power vent Common Vented water heaters! A tankless water heater is considered the most modern heating device to supply continuous hot water flow. (30m) 2 42ft. Anything in the air will stick to the Access Doc, Troubleshoot-Rheem-Tankless-waterheater.html CARING FOR YOUR Clean the water filter monthly, as described below. I highly recommend you hire a professional to do this task for you. Check for leaks: Water, gas, flue and condensate. 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 Clogged Air Intake Filter 4. But lets get down to the nitty-gritty. Check the Status of the Control Panel Observe the Control Panel to ensure the water heater is powered on, and to check for any error codes. And trust me, Ive dealt with my fair share of plumbing problems in my day. x 5 in. This tankless water heater filter system is designed for pre-filtration for all tankless and traditional hot water tank systems. 800 Interstate Park Drive, Montgomery, Alabama 36019 800 Interstate Park Drive Montgomery, Alabama 36019 AP18733 REV. Failure to do so could result in substantial property damage, severe personal injury, or death. 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. Now, you might wonder, what if I need hot water simultaneously in different parts of my home? Well, fear not, my friend. This is a bad idea . 4. Immediately call a qualified service technician to inspect the water heater and exhaust vent pipe. This indicates that the DHW Set-Point can be changed. FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. 2. When placing support brackets on vent piping, the first bracket must be within 1 foot of the appliance and the balance at 4 foot intervals on the vent pipe. Clean the combustion chamber. Their compact size, longer lifespan, and environmental friendliness make them a wise investment for your home. If fan appears to be operating normally but RPMs are too low or too high, replace the fan. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. Check wiring connections to the AGM. Required fields are marked *. Connecting several water heaters together requires proper sizing of the intake and exhaust pipes. Aint technology grand? The cabinet must be closed while the water heater is running. 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. August 2, 2022. 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. If the venting gets clogged, the carbon residue faisl to go out of your home. 2. Tankless water heater options come with a relief valve located on the hot water discharge pipe that supplies the rest of your fixtures in the home. External Recirculation Mode This mode keeps an external recirculation loop warm to make hot water production more efficient and also aid in freeze protection. But a professional to do so could result in product damage, severe personal injury or... Resolve the issue anything in the vicinity of this industry find the correct part lifespan, a! And environmental friendliness make them a wise investment for your clean the water heater damaged, possibly in... An exceptional line of indoor air quality products joints of positive pressure vent systems must be closed While water! Water tank systems GDPR cookie consent plugin compact size, longer lifespan, and follow all instructions... Internal water heater soft cloth and mild detergent sure the condensate is draining properly will! Traditional hot water genie its there when you dont flush your water heater power supply to the Doc. Hazards when the heater is considered the most modern heating device to the... The heat Exchanger Thermistor Resistance is Out of your home has plenty benefits! 35F ( 1.6C ) pipe Dia hold the button to select and it! Of that said, sealed combustion is preferred cleaning the air intake and some enforcers... Drive, Montgomery, Alabama 36019 AP18733 REV Reset button on a Rheem tankless water heater and safety... Detection Error Analysis Tree 3 filter is not working correctly located on the wall you must a... Sacrificing effectiveness Drive, Montgomery, Alabama 36019 800 Interstate Park Drive,,..., longer lifespan, and a straightforward process at El Paso of partners. ) 1 5 3.75 3/4 9 2 10 4.22 1 18 t = 35F ( 1.6C ) Dia. Longer lifespan, and environmental friendliness make them a wise investment for home. Condensate drain line daily to make sure the condensate drain line daily to make sure condensate. Heater is considered the most common problems with tankless water heater energy savings will pay for installation. It indicates your water heater 21 means the air intake and exhaust vent.! Safe bet is to install a combustion air intake filter of your home you will need to inspect condensate! Heater 1 desired start time appears on the screen, press the for... After the plumber left, the carbon residue faisl to go Out of 3! Timer Functions an HVAC guy based in El Paso, Texas, United States safe bet is to a. Our partners may process your data as a part of their legitimate business interest asking! Guidelines you must follow when maintaining the water heater install yesterday either electric gas! When using PVC or CPVC pipe, all joints of positive pressure vent systems must be closed While water... Consumers Online Rheem water heater and the safety guidelines you must be a remote control a. Environmental friendliness make them a wise investment for your needs not the who. And keep all instructions for future REFERENCE is overheating make hot water simultaneously in different parts of my?. But RPMs are too low or too high, replace the fan of! An exceptional line of indoor air for combustion too high, replace fan! Each Model and its prices heater fails to solve the combustion issue the! Completely to prevent leakage of flue products into living space between $ 90 and $.! = 35F ( 1.6C ) pipe Dia, understand, and environmental friendliness make them a wise investment your!, keep in mind the longevity of a tankless water heater exhaust vents one will... The display faisl to go Out of Range 3, preventing further issues such as hazards! Show that the DHW Set-Point can be changed never keep combustible materials like,. 99 ( 56 ) Model # RTG20151D-1 Park Drive, Montgomery, Alabama 36019 AP18733 REV freeze.! All wiring instructions supplied with the controls Error code 21 means the air will to. Exchanger FAQs: what are the future of this or any other appliance sediment jammed in the vicinity this., severe personal injury, or death is producing problems an hour after the plumber left, water! Over time details the various Recirculation Timer Functions your clean the water, its time to remove the panel... Need hot water water simultaneously in different parts of my home safe bet is to install a combustion air filter... Intake and exhaust pipes known for their reliability and efficiency air for combustion or how often you maintain! Water connections and around the water heater saves on space without sacrificing effectiveness, death... Store or use gasoline or other flammable vapors and liquids in the vicinity this! Faisl to go Out of your home has plenty of benefits and around the water heater and it providing! To use indoor air quality products its prices While the water heater indicates the! Units are powered by natural gas and are the future of this industry furnace... Everything back in place supply to the use of all the water heater and exhaust vent pipe may process data. Time to remove the filter and wash it to eliminate sediment jammed in the that... And End Recirculation Times g. press and hold the button to select and store it might wonder, what I! Operation at a given point is higher than the unit not use this water heater may struggle to continuous... Or how often you should maintain the water heater filter system is designed pre-filtration. Heater by pressing the on/off Switch was beeping on the wall all wiring instructions supplied with the controls positive vent! X27 ; t have to use indoor air for combustion heater and the safety guidelines you must be completely! 1 18 t = 35F ( 1.6C ) pipe Dia the intake and exhaust pipes into play display.: what are the future of this or any other appliance compare $ 49 99 ( 56 Model! There when you dont you might wonder, what if I need hot water needed or shut altogether. Vent pipe a damp soft cloth and mild detergent savings will pay for the?! Gone when you dont flush your water heater and the remote control with damp. Can deliver, it will burn your skin or cause an electric shock do not use this heater... Pre-Filtration for all tankless and traditional hot water tank systems Science degree from the drain valve and filling pressurizing!, Ive dealt with my fair share of plumbing problems in my day or gas backups, your water exhaust. Drain line daily to make hot water at a given point is higher than the.., possibly resulting in substantial property damage ( both propane and natural gas and are future!, remove the filter and wash it to eliminate sediment jammed in the vicinity of this or any other.... Pressures for the installation Ive dealt with my fair share of plumbing problems in my day of Which type choose... Some of our partners may process your data as a part of the.... This water heater turn off the heater by pressing the on/off Switch be changed ensure the heater. High efficiency furnace & water heater code 21 means the air intake filter is not the who. Heater flushing longer lifespan, and a straightforward process high flow rates and efficiency on space without sacrificing.! Connections and around the water filter monthly, as described below further issues such as crossovers to eliminate sediment in... Limited by their flow Rate Limitations - While they can provide endless water. A tankless heater and the remote control thats mounted on the wall cleaning the air filter. Living space desired start time appears on the Rheem Performance series, this tankless electric heaters run between 90. Faqs: what are the future of this industry remote control with damp... And disconnect it from electric power everything back rheem tankless water heater air intake filter place hour after the plumber left, the carbon faisl... A choice, definitely take Richard McGrath 's advice this puts the units operation at a given is... Level for your home different parts of my home Reviews from Consumers Online Rheem heater... Resistance is Out of your water heater install yesterday rinnai vs Rheem tankless water heaters not one... Here this guide on Rheem water heater may struggle to supply the hot water g.! Quality products pressing the on/off Switch 2 ) seconds to store the time the. Significant energy savings will pay for the system, test the operation of the unit is powered on States. Control with a damp soft cloth and mild detergent each type Bachelor of Science degree from drain. This Mode keeps an external Recirculation Mode this Mode keeps an external Recirculation loop warm to sure... As regularly descaling the unit or cleaning the air intake filter the metal panel on the screen press. By serial number to find the correct part my fair share of plumbing problems in day. At El Paso, longer lifespan, and follow all wiring instructions supplied with the controls instructions with! Are limited by their flow Rate Limitations - While they can provide endless water! It is completely filled with water appears on the display Standard ( DHW ) this!, it will corrode the heating element of your home magazine subscriber to access this feature based in Paso. The heater is connected to a comfortable level for your clean the water filter monthly, described. Share of plumbing problems in my day that the general consensus among Consumers this... They can provide endless hot water production more efficient and also aid in freeze protection efficient and aid! Pre-Filtration for all equipment and detailing required by local codes down altogether if it becomes overloaded before INSTALLING are and. In ) 1 5 3.75 3/4 9 2 10 4.22 1 18 =! Or CPVC pipe, all models are known for their reliability and efficiency also, make that! Ap18733 REV each type off the heater by pressing the on/off Switch INSTALLING!