Pentair MasterTemp Features: Heats up fast so no long waits before enjoying your pool or spa. Best-in-class energy efficiency*. Manual gas shut-off when service is required. Eco-friendly MasterTemp is certified for low NOx emission and outperforms industry standards. Rotating digital display allows for easy viewing. Pentair Find more information about bone disease, the symptoms and the treatments at patient.info. This is defined as osteochondrosis of the tarsal navicular bone. Try our Symptom Checker ...MasterTemp heaters are as easy to use as your home heating system! User-friendly LCD display and troubleshoot icons make system operation and monitoring a snap. ... For technical support on this item please contact Pentair at 1-800-831-7133 www.pentairpool.com. Compare with Similar Products . Current Product + Add. Pentair …Replace any damaged O-rings and clean out any dirt or debris from around it. This can often be the cause of a low flow issue in Pentair MasterTemp 400s. Cleaning and Maintenance Tips for the Pentair MasterTemp 400. The Pentair MasterTemp 400 requires regular maintenance, but you don’t have to be an expert to keep it running smoothly.Press the Menu button then press the Down arrow until BYPASS is selected. Press Select to enter the menu. Press the UP arrow button to show enabled. Press Select to save the value. Press the back button to return to the main screen. After enabling the by-pass valve, turn the heater off and then back on again.Pentair MasterTemp Low NOx Commercial Swimming Pool Heater - Electronic Ignition - Natural Gas - 400,000 BTU ASME - 460775 Call (888) 836-6025 or contact us for pricing and to purchase. Ultra-High Performance in a Compact, Quiet & Eco-Friendly Design Swimming Pool Heater All MasterTemp units feature a copper heat exchanger that will stand up to the harshest of conditions, like low pH, high flow or heavy use. MasterTemp heaters feature a best-in-class energy efficiency, manual gas shut-off when service is required, and rotating digital display allowing for easy viewing. Eco-friendly - certified for low NOx ... 1 Year. BioShield® UV System (Lamp and Quarts Sleeve only) manufactured after October 1, 2023. Ninety (90) days. IntelliChlor® Salt Chlorine Generator (without Power Center) 2 Years. iChlor™ Salt Chlorine Generator - Bundle with Power Supply and Cell (iChlor 15 and iChlor 30) manufactured before October 1, 2023.1620 HAWKINS AVE., SANFORD, NC 27330 • (919) 566-8000 10951 WEST LOS ANGELES AVE., MOORPARK, CA 93021 • (805) 553-5000 ALL INDICATED PENTAIR TRADEMARKS AND LOGOS ARE PROPERTY OF PENTAIR INC. OR ITS GLOBAL AFFILIATES IN THE U.S.A. AND/OR OTHER COUNTRIES. THIRD PARTY …We would like to show you a description here but the site won’t allow us.Pentair 461031 Intake Air Kit. $233.20. PENTAIR 474958 KIT, LID CC 9 BOLT. Pentair. $403.63. Pentair 42001-0114S Air Orifice Grill, NLA. Pentair. $0.01. Shop our supply of Pentair replacement parts and we can help you find the parts you need for your Pentair MasterTemp 400 pool heater and Pentair 460737 heater model.Pentair MasterTemp Heaters ; MasterTemp Heater Parts ; Natural Gas Heater Parts ; 460736 MasterTemp 400,000 BTU; Home 460736 MasterTemp 400,000 BTU. Log in ... Pentair | 42001-0060S | Water Pressure Switch for Max-E-Therm and MasterTemp 200-400 BTU . SKU#: 42001-0060S. $64.99. Add to Cart. Added to Cart. Go to Cart. Pentair …When it comes to ensuring the quality and safety of your drinking water, a reliable water filter is essential. Pentair, a trusted name in the industry, offers a range of water filt...MASTERTEMP Calentador para piscina y spa manual de instalación y operación 5 Los calentadores de piscinas MasterTemp® están diseñados y fabricados para brindar muchos años de servicio seguro y confiable cuando han sido instalados, operados y mantenidos de acuerdo a la información en este manual. A través de este manual se400 525 750 900 1/2 in. NAT 500 ft. 400 ft. 390 ft. 260 ... Gas Pressure Requirements for MasterTemp, Max-E-Therm and E Ti 400 Pentair Water Heaters Maximum Inlet MinimumA new messaging service, Corrio, wants to drive down costs of quick messages between inmates and their loved ones. Answering machines have been around since the early 20th century,...Used On Pentair Mastertemp® Heaters. 400 Includes Items #3 and 4; Used On Sta-Rite Max-E-Therm Heaters. 400 Includes Items #3 and 4; View More Details Price: $59.09 Quantity. Add to Cart Save for Later In Stock. B--Blower Adapter Plate Gasket Kit Item Number: 777070011. Details: ...Mar 26, 2022 · These Pentair MasterTemp 400 Problems relating to temperature are explored below. i) No Heat. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Solution: Low water flow is the cause of up to 70% of all ‘My heater won’t heat’ service calls. The pentair mastertemp 400 service heater light on indicates the need for maintenance or repair. Swimming pools are a great source of relaxation, especially when the weather heats up. Your pool heater is an integral part of the overall pool system, as it helps to keep the water at a comfortable temperature. If you own a pentair mastertemp 400 ...Smart connectivity via the Pentair Automation Systems enable you to manage pool functions anytime, anywhere. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. Digital connectivity with your pool’s automation system and an advanced ignition control module with flame strength sensor ...Brandywine Realty Trus releases earnings for Q1 on April 20.Analysts on Wall Street predict Brandywine Realty Trus will release losses per share o... On April 20, Brandywine Realty...PentairManuals and User Guides for Pentair MASTERTEMP 400 HD. We have 3 Pentair MASTERTEMP 400 HD manuals available for free PDF download: Installation And User …Looking for specific info? Buy Pentair Mastertemp 400K Btu Heater 460805: Pool Heaters - Amazon.com FREE DELIVERY possible on eligible purchases.MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. A tough, composite exterior handles the heat and weathers the elements. Safe operation is assured through a series of features, including; a water pressure switch that senses the pump is running to prevent overheating; high limit switches assure ...A high performance, low NOx, natural gas pool heater with electronic ignition and digital controls. Compare features, specifications, reviews …MasterTemp Heaters offer all the efficiency, convenience and reliability features you want in a pool heater, plus a lot more. As easy to use as your home heating system, plus, user-friendly indicator lights make system operation and monitoring a snap. The compact design and super-quiet operation won't intrude on your poolside leisure time.The pentair mastertemp 400 service heater light on indicates the need for maintenance or repair. Swimming pools are a great source of relaxation, especially when the weather heats up. Your pool heater is an integral part of the overall pool system, as it helps to keep the water at a comfortable temperature. If you own a pentair mastertemp 400 ...Christmas Traditions in Ethiopia - Christmas in Ethiopia is called 'Ganna' and is celebrated on January 7 instead of December 25. Learn more about Christmas traditions in Ethiopia....Brandywine Realty Trus releases earnings for Q1 on April 20.Analysts on Wall Street predict Brandywine Realty Trus will release losses per share o... On April 20, Brandywine Realty...The Pentair MasterTemp 400 pool heater comes in three different models: Pentair 460736 :Standard model: Copper heat exchanger. Pentair 460805 : Heavy-duty (HD) : Copper-nickel exchanger stands up to the harshest of applications, like low pH, high flow or heavy use.Pentair MasterTemp Features: Heats up fast so no long waits before enjoying your pool or spa. Best-in-class energy efficiency*. Manual gas shut-off when service is required. Eco-friendly MasterTemp is certified for low NOx emission and outperforms industry standards. Rotating digital display allows for easy viewing.Ah, wedding photos. Nothing documents all the details of a couple’s big day better, from each tender bloom in the bride’s bouquet to every luscious layer of the cake. However, not ...Used On Pentair Mastertemp® Heaters. 400 Includes Items #3 and 4; Used On Sta-Rite Max-E-Therm Heaters. 400 Includes Items #3 and 4; View More Details Price: $59.09 Quantity. Add to Cart Save for Later In Stock. B--Blower Adapter Plate Gasket Kit Item Number: 777070011. Details: ...MASTERTEMP Calentador para piscina y spa manual de instalación y operación 5 Los calentadores de piscinas MasterTemp® están diseñados y fabricados para brindar muchos años de servicio seguro y confiable cuando han sido instalados, operados y mantenidos de acuerdo a la información en este manual. A través de este manual seWe would like to show you a description here but the site won’t allow us.Buy a propane gas pool heater with 400,000 BTU and low NOx emission. See customer reviews, product dimensions, warranty information and delivery options.Replace any damaged O-rings and clean out any dirt or debris from around it. This can often be the cause of a low flow issue in Pentair MasterTemp 400s. Cleaning and Maintenance Tips for the Pentair MasterTemp 400. The Pentair MasterTemp 400 requires regular maintenance, but you don’t have to be an expert to keep it running smoothly.Pentair MasterTemp Features: Heats up fast so no long waits before enjoying your pool or spa. Best-in-class energy efficiency. Manual gas shut-off when service is required. Eco-friendly Pentair MasterTemp is certified for low NOx emission and outperforms industry standards. Rotating digital display allows for easy viewing. This item: Pentair Mastertemp Heater 400K BTU 460737 Propane Gas $3,181.50. Mastertemp Indoor Adapter Kit 300 400 BTU $129.00 [view detail] Pentair Intelliflo Pump VS 3 HP 230V Variable Speed THP 3.95 $ [view detail] Description. Warranty. User manual. Reviews (0) Price from $3,150.00. Shipping $250. Already known as being dependable and efficient, MasterTemp now offers smart features and an optional energy-saving Smart Bypass Valve Kit to help you ensure your pool is ready whenever you are. Smart connectivity via the Pentair Automation Systems enable you to manage pool functions anytime, anywhere. Full-text digital display combines new ...Adam McCann, WalletHub Financial WriterOct 26, 2021 This content is not provided or commissioned by any issuer. Opinions expressed here are the author's alone, not those of an issu...Vacations are far from simple for celebrities, who often travel by yacht. Yes, you heard that correctly: most celebrities either own or have rented a yacht for their traveling excu...LINKS TO PURCHASE:Natural Gas Pool Heater 400,000 BTU (460736): https://www.epoolsupply.com/products/pentair-mastertemp-high-performance-eco-friendly-pool-he...Pentair Master Temp 400 Heater HD - Natural Gas ALL THE EFFICIENCY, CONVENIENCE, AND RELIABILITY YOU WANT IN A GAS-FIRED POOL HEATER. Pentair MasterTemp heaters offer all the efficiency, convenience, and reliability features you want in a pool heater, plus a lot more.As easy to use as your home heating system; …The Pentair MasterTemp Low NOx Pool Heater – 400k BTU (Propane) provides energy-savings and advanced operating features that were only available from much larger heaters. With its revolutionary pre-mixed gas combustion technology, the MasterTemp 125 Heater offers 82% thermal efficiency, the highest in its class.Nov 19, 2021 · The pH level of the condensate is between 3.1 and 4.2, and Pentair recommends that users neutralize the condensate by installing the optional ETi 400 Condensate Neutralizer Kit. 475971 - ETi 400 Indoor Direct Air Intake Kit - For applications in which the ETi 400 will be installed indoors using a Direct Air Intake, use this kit for simplified ... Christmas Traditions in Ethiopia - Christmas in Ethiopia is called 'Ganna' and is celebrated on January 7 instead of December 25. Learn more about Christmas traditions in Ethiopia....PentairLINKS TO PURCHASE:Natural Gas Pool Heater 400,000 BTU (460736): https://www.epoolsupply.com/products/pentair-mastertemp-high-performance-eco-friendly-pool-he...Control Board: American Engineering Heavy Duty Hardware, Compatible With: Mastertemp and Starite Heaters. Air Flow Switch: Designed to work with Pentair Mastertemp 400 parts, 300, 200, and Pentair Mastertemp 125 low nox pool heater parts. It will also work with all Sta-Rite Heaters. Membrane Pad: Manufactured with a 100% gold dome to ensure the …6 days ago ... ... play this video. Learn more · Open App. How to Use the Pentair Master Temp 400 Heater! No views · 1 minute ago ...more. Jay's Studio. 857.Features: Very compact design for such a high performance heater allows for smaller overall equipment pads that won't intrude on your poolscape. Easy to install or …$3,449.99. Free Shipping! No Sales Tax! Add to cart. Transform your pool experience with the MasterTemp 400K BTU Natural Gas High-Performance Heater. Renowned for its …Thermistor Part #: 42001-00536SHLS (High Limit Switch) Part #: 42001-0063SBuy the Pentair MasterTemp 400K BTU heater for your pool and spa with free shipping and pool perks. Learn about its features, specifications, warranty, and reviews.MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. A tough, composite exterior handles the heat and weathers the elements. Safe operation is assured through a series of features, including; a water pressure switch that senses the pump is running to prevent overheating; high limit switches assure ...MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. A tough, composite exterior handles the heat and weathers the elements. Safe operation is assured through a series of features, including; a water pressure switch that senses the pump is running to prevent overheating; high limit switches assure ...Buy a propane gas pool heater with 400,000 BTU and low NOx emission. See customer reviews, product dimensions, warranty information and delivery options. NO COLD FEET. The ETi 400 is designed to accommodate the features that make your pool fun. Optimized Heating. For every $1 of natural gas that’s piped into the heater, 96 cents goes directly to heating your pool. UPGRADE OPTION. Plumbing aligns to MasterTemp® High Performance Heater, for easy drop in replacement. The Pentair Mastertemp 400 Natural Gas to Propane Conversion Kit offers a convenient solution for those looking to switch their heating system to propane. Propane often provides a more cost-effective and environmentally friendly option, making this conversion an excellent choice for many pool and spa owners. This item: Pentair Mastertemp 400K BTU Natural Gas 460736 $3,095.65. NG to Propane Conversion Kit Model 400 $39.00 [view detail] Mastertemp Indoor Adapter Kit 300 400 BTU $129.00 [view detail] Intelliflo3 VSF 3HP 230V 2-3 in. plumbing with WIFI $1,699.00 [view detail] Description. Warranty. User manual. 461021 Pentair MasterTemp 400 ASME HD Natural Gas High Performance Pool and Spa Heaters. Connect with the Pentair IntelliCenter® Control System and you can control your pool functions from across the yard or around the globe. New, full text digital display combines new functions and a user-friendly menu for easy operation and diagnostics.Feb 1, 2017 ... Trouble shooting a mastertemp that will not turn on when buttons are pressed. This item: Pentair Mastertemp 400K BTU Natural Gas 460736 $3,095.65. NG to Propane Conversion Kit Model 400 $39.00 [view detail] Mastertemp Indoor Adapter Kit 300 400 BTU $129.00 [view detail] Intelliflo3 VSF 3HP 230V 2-3 in. plumbing with WIFI $1,699.00 [view detail] Description. Warranty. User manual. >MasterTemp Heaters offer all the efficiency, convenience and reliability features you want in a pool heater, plus a lot more. As easy to use as your home heating system, plus, user-friendly indicator lights make system operation and monitoring a sna ... Pentair MasterTemp Low NOx Pool Heater - Electronic Ignition - Propane - 400,000 BTU … This item: Pentair Mastertemp Heater 400K BTU 460737 Propane Gas $3,181.50. Mastertemp Indoor Adapter Kit 300 400 BTU $129.00 [view detail] Pentair Intelliflo Pump VS 3 HP 230V Variable Speed THP 3.95 $ [view detail] Description. Warranty. User manual. Reviews (0) Price from $3,150.00. Shipping $250. Smart connectivity via the Pentair Automation Systems enable you to manage pool functions anytime, anywhere. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. Digital connectivity with your pool’s automation system and an advanced ignition control module with flame strength sensor ...We would like to show you a description here but the site won’t allow us. This item: Pentair Mastertemp 400K BTU Natural Gas 460736 $3,095.65. NG to Propane Conversion Kit Model 400 $39.00 [view detail] Mastertemp Indoor Adapter Kit 300 400 BTU $129.00 [view detail] Intelliflo3 VSF 3HP 230V 2-3 in. plumbing with WIFI $1,699.00 [view detail] Description. Warranty. User manual. Smart connectivity via the Pentair Automation Systems enable you to manage pool functions anytime, anywhere. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. Digital connectivity with your pool’s automation system and an advanced ignition control module with flame strength sensor ...Pentair MasterTemp Low NOx Heater - Electronic Ignition - HD Cupro Nickel - Natural Gas - 400K BTU ASME - 461021 $ 3,966.13. Ultra-High Performance in a Compact, Quiet & Eco-Friendly Design . MasterTemp Heaters offer all the efficiency, convenience and reliability features you want in a pool heater, plus a lot more. As easy to use as your …Thermistor Part #: 42001-00536SHLS (High Limit Switch) Part #: 42001-0063SJan 10, 2015 · What I liked about the Pentair 460737 MasterTemp Performance Pool Heater. The thing I like most about this performance pool heater is that it offers me the ability to heat up almost all of the water in your pool in no time at all, thanks to the massive 400,000 BTU propane heating system that it takes advantage of. Replace any damaged O-rings and clean out any dirt or debris from around it. This can often be the cause of a low flow issue in Pentair MasterTemp 400s. Cleaning and Maintenance Tips for the Pentair MasterTemp 400. The Pentair MasterTemp 400 requires regular maintenance, but you don’t have to be an expert to keep it running smoothly.NO COLD FEET. The ETi 400 is designed to accommodate the features that make your pool fun. Optimized Heating. For every $1 of natural gas that’s piped into the heater, 96 cents goes directly to heating your pool. UPGRADE OPTION. Plumbing aligns to MasterTemp® High Performance Heater, for easy drop in replacement.Kepler Capital analyst Carola Holtz maintained a Buy rating on Stellantis (STLA – Research Report) on March 24 and set a price target of ... Kepler Capital analyst Carola Ho...All of the following crimes will disqualify a person from immediately obtaining an FID. However, if it is not a crime of violence, the person will be entitled to receive the FID …400 Regency Forest Dr | Cary, NC 27518 | United States | 800.831.7133 | pentair.com Max-E-Therm heaters are available in a range of heat output capacities from 175,000 BTU to 400,000 BTU. *Savings amount based on lab testing conducted using MasterTemp 400® heater in conjunction with IntelliFlo® VSF Pump and Bypass Kit, which includes ...Chip and Joanna Gaines of "Fixer Upper" launch a new Target collection called "Hearth & Hand with Magnolia." Our favorites are under $25. By clicking "TRY IT", I agree to recei...An Eco Select Brand: MasterTemp Heaters offer best-in-class energy efficiency. Plus, they are certified for low NOx emissions, making them eco-friendly favorites. In fact, MasterTemp outperforms current industry standards for air pollution exhaust. The Eco Select Brand identifies Pentair's "greenest" and most efficient …This item: Pentair Mastertemp Heater 460805 400K BTU Cupro Nickel Natural Gas $3,399.00. Pentair Intelliflo Pump VS 3 HP 230V Variable Speed THP 3.95 $ [view detail] Pentair FNS PLUS 60 Sq Ft DE Filter - Valve sold Seperately $1,485.00 [view detail] Hi Flo multi port Valve 2 in FNS PLUS DE FILTER $206.70 [view detail] NG to Propane …ouyanglong 77707-0010 Thermal Regulator Fits for Pentair Mastertemp 400 333 300 250 200 125 and Sta-Rite Pool Spa Heaters SR200 SR333 SR400 Replaces Pentair Part 38000-0007S 3.6 out of 5 stars 5 1 offer from $19.99
Pentair MasterTemp Features: Heats up fast so no long waits before enjoying your pool or spa. Best-in-class energy efficiency*. Manual gas shut-off when service is required. Eco-friendly MasterTemp is certified for low NOx emission and outperforms industry standards. Rotating digital display allows for easy viewing.. Kawasaki oil filter fr691v
Already known as being dependable and efficient, MasterTemp now offers smart features and an optional energy-saving Smart Bypass Valve Kit to help you ensure your pool is ready whenever you are. Smart connectivity via the Pentair Automation Systems enable you to manage pool functions anytime, anywhere. Full-text digital display combines new ...PENTAIR HOME INTEIONNET ’ If you have questions about ordering Pentair replacement parts, and pool products, please contact: CUSTOMER SERVICE / TECHNICAL SUPPORT Customer Service and Technical Support, USA (8 A.M. to 4:30 P.M. — Eastern/Pacific Times) Phone: (800) 831-7133 Fax: (800) 284-4151 Web site …Amerlock 400. Product Data. Low VOC; High-performance general maintenance coating for new or old steel; Cures through wide temperature range; Self …Item No. 621063 | Manufacturer SKU: 77707-0016. $659.99. Buy in monthly payments with Affirm on orders over $50. Learn more. Pentair 77707-0016 Replacement Manifold Kit for Sta-Rite Max-E-Therm and Pentair MasterTemp 400K BTU Pool Heaters. More Details. 42002-0007S Control Board with 472610Z Switch Membrane Pad Replacement for Pen-tair MasterTemp NA/LP Series Pool/Spa Heater Electrical Systems. $9900. List: $108.00. FREE delivery Mon, Mar 11. Or fastest delivery Thu, Mar 7. Only 11 left in stock - order soon. Learn how to fix common problems with your Pentair MasterTemp 400 pool heater, such as ignition failure, temperature issues, heater keeps shutting off, display not …This item: Pentair Mastertemp Heater 460805 400K BTU Cupro Nickel Natural Gas $3,399.00. Pentair Intelliflo Pump VS 3 HP 230V Variable Speed THP 3.95 $ [view detail] Pentair FNS PLUS 60 Sq Ft DE Filter - Valve sold Seperately $1,485.00 [view detail] Hi Flo multi port Valve 2 in FNS PLUS DE FILTER $206.70 [view detail] NG to Propane Conversion ...Pool Heater Igniter Kit with Gasket Compatible with Pentair MasterTemp 200/250/300/400 & Max-E-Therm for Pool and Spa Heater Igniter Kit, Replace# 77707-0054 3.4 out of 5 stars 35 1 offer from $37.99Pentair MasterTemp Low NOx Heater - Electronic Ignition - HD Cupro Nickel - Natural Gas - 400K BTU ASME - 461021 $ 3,966.13 Ultra-High Performance in a Compact, Quiet & …Los calentadores MasterTemp están disponibles en un rango de capacidad de salida de calor de 175.000 BTU a 400.000 BTU. *Ahorros basados en pruebas de laboratorio realizadas utilizando el calentador MasterTemp 400 en conjunto con la bomba IntelliFlo VSF y el Kit de derivación (bypass), que incluye una válvula IntelliValve controlada por el ...The Pentair MasterTemp Low NOx Pool Heater – 400k BTU (Propane) provides energy-savings and advanced operating features that were only available from much larger heaters. With its revolutionary pre-mixed gas combustion technology, the MasterTemp 125 Heater offers 82% thermal efficiency, the highest in its class.Smart connectivity via the Pentair Automation Systems enable you to manage pool functions anytime, anywhere. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. Digital connectivity with your pool’s automation system and an advanced ignition control module with flame strength sensor ...We would like to show you a description here but the site won’t allow us.Used On Pentair Mastertemp® Heaters. 400 Includes Items #3 and 4; Used On Sta-Rite Max-E-Therm Heaters. 400 Includes Items #3 and 4; View More Details Price: $59.09 Quantity. Add to Cart Save for Later In Stock. B--Blower Adapter Plate Gasket Kit Item Number: 777070011. Details: ...Pentair Mastertemp 400 gas pool heater cycling due to a high limit sensor error. Three potential causes addressed: High limit sensor, thermal regulator, bypa...Fits Pentair MasterTemp pool and spa heater electrical systems ; Also fits Pentair Sta-Rite Max-E-Therm pool and spa heater electrical systems ; Comes with 115/230-volts, 50-VA ; The product measurement is approx. 3"X4"X2" ... Designed to be plugged into Pentair Mastertemp 400 Control Board.Pentair MasterTemp Features: Heats up fast so no long waits before enjoying your pool or spa. Best-in-class energy efficiency*. Manual gas shut-off when service is required. Eco-friendly MasterTemp is certified for low NOx emission and outperforms industry standards. Rotating digital display allows for easy viewing.When the Pentair Mastertemp 400 is leaking water, it’s usually due to a faulty part in the heat exchanger. In most cases, the thermal governor that controls the cooling fans of the heater is the culprit. Ideally, the Mastertemp 400 will last for up to 15 years with good maintenance. However, the thermal governor may malfunction in as little ....