{"title":"Hard Start Kits \u0026 Compressor Accessories","description":"\u003cp\u003eProfessional hard start kits \u0026amp; compressor accessories for HVAC contractors and homeowners. All items ship same-day from Houston. 30-day returns.\u003c\/p\u003e","products":[{"product_id":"5-2-1-compressor-saver-hard-start-kit-csr-u3-3-5-to-5-ton-units","title":"5-2-1 Compressor Saver Hard Start Kit CSR-U3 3.5 to 5 Ton Units","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003e5-2-1 Compressor Saver Hard Start Kit CSR-U3 3.5 to 5 Ton Units\u003c\/h2\u003e\n    \u003cp\u003eA plug-and-play compressor hard start kit for 3.5 to 5 ton residential and light commercial AC units. Reduces compressor startup time by up to 50% and lowers inrush current, extending compressor life and preventing low-voltage startup failures during peak summer demand.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eDesigned for 3.5 to 5 ton AC and heat pump compressors\u003c\/li\u003e\n\u003cli\u003eReduces startup time from 1 second to under 1\/2 second\u003c\/li\u003e\n\u003cli\u003eLowers inrush current by up to 50% — protects against brown-outs\u003c\/li\u003e\n\u003cli\u003eUniversal plug-and-play installation — no wiring modifications needed\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eTonnage: 3.5 to 5 tons\u003c\/li\u003e\n\u003cli\u003eVoltage: 187-264 VAC\u003c\/li\u003e\n\u003cli\u003eStart capacitor: Built-in\u003c\/li\u003e\n\u003cli\u003ePotential relay: Built-in\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eHard start kit with built-in relay and capacitor\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eHow do I know if my AC needs a hard start kit?\u003c\/h4\u003e\n\u003cp\u003eSigns include: compressor struggles to start on hot days, breaker trips on startup, lights dim when AC kicks on, or the compressor is more than 5 years old. A hard start kit is cheap insurance for compressor longevity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWill this void my compressor warranty?\u003c\/h4\u003e\n\u003cp\u003eNo, hard start kits are widely accepted by manufacturers and do not void warranties. Many manufacturers recommend them for systems in hot climates or on long line sets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eHow do I install it?\u003c\/h4\u003e\n\u003cp\u003eConnect the two wires to the compressor contactor's load side — one to the Start terminal and one to the Common terminal. No wiring changes to the existing system are needed. Takes about 5 minutes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat is the difference between CSR-U1, U2, and U3?\u003c\/h4\u003e\n\u003cp\u003eThey cover different tonnage ranges: U1 for 1-3 tons, U2 for 2-3.5 tons (can overlap), and U3 for 3.5-5 tons. Choose based on your system's compressor size.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087648627,"sku":"NHVAC-HARD-R89ZGL","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/51ylfbC84GL._AC_SL1500.jpg?v=1781918097"},{"product_id":"5-2-1-compressor-saver-hard-start-kit-csr-u2-2-to-3-5-ton-units","title":"5-2-1 Compressor Saver Hard Start Kit CSR-U2 2 to 3.5 Ton Units","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003e5-2-1 Compressor Saver Hard Start Kit CSR-U2 2 to 3.5 Ton Units\u003c\/h2\u003e\n    \u003cp\u003eA plug-and-play compressor hard start kit for 2 to 3.5 ton residential AC units and heat pumps. Installs in minutes with no wiring changes and immediately improves compressor starting reliability, especially in hot weather or when voltage sags during peak demand.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eFits 2 to 3.5 ton compressors — covers most residential AC systems\u003c\/li\u003e\n\u003cli\u003eReduces startup current draw by up to 50%\u003c\/li\u003e\n\u003cli\u003ePlug-and-play installation — connect 2 wires, done\u003c\/li\u003e\n\u003cli\u003eExtends compressor life by reducing mechanical startup stress\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eTonnage: 2 to 3.5 tons\u003c\/li\u003e\n\u003cli\u003eVoltage: 187-264 VAC\u003c\/li\u003e\n\u003cli\u003eConnection: Push-on terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eHard start kit\u003c\/li\u003e\n\u003cli\u003eInstallation guide\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWill this help my AC start in extreme heat?\u003c\/h4\u003e\n\u003cp\u003eYes, this is exactly what a hard start kit is designed for. In extreme heat, refrigerant pressures are higher, making the compressor work harder to start. The hard start kit provides the extra torque needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eMy AC is only 2 years old. Does it still need a hard start kit?\u003c\/h4\u003e\n\u003cp\u003eEven new systems benefit from a hard start kit, especially if you have a long lineset (over 50 feet), are in a hot climate, or have experienced voltage issues. It is inexpensive compressor insurance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I install this myself?\u003c\/h4\u003e\n\u003cp\u003eYes, if you are comfortable working around electrical components. Turn off power at the disconnect, connect two wires to the contactor, and restore power. However, if unsure, hire a licensed technician.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes this work with heat pumps?\u003c\/h4\u003e\n\u003cp\u003eYes, it works with both AC and heat pump compressors in the 2 to 3.5 ton range.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087714163,"sku":"NHVAC-HARD-3N44Z5","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/71rxFlgTwuL._AC_SL1500.jpg?v=1781918095"},{"product_id":"5-2-1-compressor-saver-hard-start-kit-csr-u1-1-to-3-ton-units","title":"5-2-1 Compressor Saver Hard Start Kit CSR-U1 1 to 3 Ton Units","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003e5-2-1 Compressor Saver Hard Start Kit CSR-U1 1 to 3 Ton Units\u003c\/h2\u003e\n    \u003cp\u003eA plug-and-play compressor hard start kit for 1 to 3 ton residential AC and heat pump systems. The most popular size for typical home AC units, this kit gives aging compressors a boost and prevents hard-start failures during the hottest days of summer.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eCovers 1 to 3 ton systems — fits most residential AC units\u003c\/li\u003e\n\u003cli\u003eNo wiring modifications — 2-wire plug-and-play install\u003c\/li\u003e\n\u003cli\u003eImmediately reduces startup time and current draw\u003c\/li\u003e\n\u003cli\u003ePrevents compressor burnout from repeated hard starts\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eTonnage: 1 to 3 tons\u003c\/li\u003e\n\u003cli\u003eVoltage: 108-132 VAC (single phase)\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eHard start kit\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eHow do I know what ton my AC is?\u003c\/h4\u003e\n\u003cp\u003eCheck the data plate on your outdoor unit. The model number often contains a number like 24 (2 ton), 30 (2.5 ton), or 36 (3 ton) — this represents BTU in thousands. Divide by 12 to get tons.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I leave this installed permanently?\u003c\/h4\u003e\n\u003cp\u003eYes, hard start kits are designed for permanent installation and should remain on the system for the life of the compressor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWill this fix my compressor that is not starting?\u003c\/h4\u003e\n\u003cp\u003eIf your compressor is trying to start (you hear a hum) but trips the breaker or just clicks off, a hard start kit may solve the problem. If the compressor is completely silent, the issue is likely electrical (contactor, capacitor, or wiring).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eIs this the same as a start capacitor?\u003c\/h4\u003e\n\u003cp\u003eIt includes a start capacitor AND a potential relay in one package. The relay automatically disconnects the start capacitor once the compressor reaches running speed.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087746931,"sku":"NHVAC-HARD-YYJXW1","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/618c74xN85L._AC_SL1500.jpg?v=1781918092"},{"product_id":"universal-hard-start-kit-relay-1-4-to-5-hp-compressor-115-288v","title":"Universal Hard Start Kit Relay 1\/4 to 5 HP Compressor 115-288V","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eUniversal Hard Start Kit Relay 1\/4 to 5 HP Compressor 115-288V\u003c\/h2\u003e\n    \u003cp\u003eProfessional universal hard start kit relay 1\/4 to 5 hp compressor 115-288v for residential and commercial HVAC compressor systems. Designed to improve compressor reliability and extend system life. Ships same-day from our Houston warehouse.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eUniversal compatibility with major HVAC compressor brands\u003c\/li\u003e\n\u003cli\u003eProfessional-grade construction for reliable long-term operation\u003c\/li\u003e\n\u003cli\u003eEasy installation for experienced technicians\u003c\/li\u003e\n\u003cli\u003eExtends compressor life and improves system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eApplication: HVAC compressor systems\u003c\/li\u003e\n\u003cli\u003eCompatibility: Universal\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eUniversal Hard Start Kit Relay 1\/4 to 5 HP Compressor 115-288V\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eIs this compatible with my AC system?\u003c\/h4\u003e\n\u003cp\u003eThis is designed for universal compatibility with all major residential and commercial HVAC compressor systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need a professional to install this?\u003c\/h4\u003e\n\u003cp\u003eWhile experienced DIYers can handle installation, we recommend having a licensed HVAC technician install compressor accessories to ensure safety and proper operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat is the return policy?\u003c\/h4\u003e\n\u003cp\u003e30-day hassle-free returns on all items. Products must be in original condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes this ship quickly?\u003c\/h4\u003e\n\u003cp\u003eYes, orders before 3PM CST ship the same business day from Houston.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087779699,"sku":"NHVAC-HARD-J2MP5B","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61_IsiaWE3L._AC_SL1500.jpg?v=1781918112"},{"product_id":"spp6e-potential-relay-start-capacitor-overload-kit-universal","title":"SPP6E Potential Relay Start Capacitor Overload Kit Universal","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eSPP6E Potential Relay Start Capacitor Overload Kit Universal\u003c\/h2\u003e\n    \u003cp\u003eProfessional spp6e potential relay start capacitor overload kit universal for residential and commercial HVAC compressor systems. Designed to improve compressor reliability and extend system life. Ships same-day from our Houston warehouse.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eUniversal compatibility with major HVAC compressor brands\u003c\/li\u003e\n\u003cli\u003eProfessional-grade construction for reliable long-term operation\u003c\/li\u003e\n\u003cli\u003eEasy installation for experienced technicians\u003c\/li\u003e\n\u003cli\u003eExtends compressor life and improves system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eApplication: HVAC compressor systems\u003c\/li\u003e\n\u003cli\u003eCompatibility: Universal\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eSPP6E Potential Relay Start Capacitor Overload Kit Universal\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eIs this compatible with my AC system?\u003c\/h4\u003e\n\u003cp\u003eThis is designed for universal compatibility with all major residential and commercial HVAC compressor systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need a professional to install this?\u003c\/h4\u003e\n\u003cp\u003eWhile experienced DIYers can handle installation, we recommend having a licensed HVAC technician install compressor accessories to ensure safety and proper operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat is the return policy?\u003c\/h4\u003e\n\u003cp\u003e30-day hassle-free returns on all items. Products must be in original condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes this ship quickly?\u003c\/h4\u003e\n\u003cp\u003eYes, orders before 3PM CST ship the same business day from Houston.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087812467,"sku":"NHVAC-HARD-HZPUL6","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61L6Z2d8yaL._AC_SL1500.jpg?v=1781918108"},{"product_id":"crankcase-heater-70w-240v-18-inch-wrap-around-universal-compressor","title":"Crankcase Heater 70W 240V 18 Inch Wrap-Around Universal Compressor","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eCrankcase Heater 70W 240V 18 Inch Wrap-Around Universal Compressor\u003c\/h2\u003e\n    \u003cp\u003eA 70W compressor crankcase heater that prevents liquid refrigerant from migrating into the compressor oil during off cycles. Critical for heat pump systems and AC units in cold climates where refrigerant migration can cause compressor damage on startup.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eWrap-around design fits any compressor shell diameter\u003c\/li\u003e\n\u003cli\u003e70W output for larger compressors and cold climates\u003c\/li\u003e\n\u003cli\u003e240V operation — connects to line voltage at the disconnect\u003c\/li\u003e\n\u003cli\u003eMaintains oil temperature above refrigerant condensation point\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eWattage: 70W\u003c\/li\u003e\n\u003cli\u003eVoltage: 240V\u003c\/li\u003e\n\u003cli\u003eLength: 18 inches\u003c\/li\u003e\n\u003cli\u003eStyle: Wrap-around belt\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eCrankcase heater\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhen do I need a crankcase heater?\u003c\/h4\u003e\n\u003cp\u003eCrankcase heaters are recommended for heat pumps in cold climates, AC units that sit idle for extended periods, and any system where liquid refrigerant migration has caused compressor failures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes the heater run all the time?\u003c\/h4\u003e\n\u003cp\u003eIt runs during the compressor off cycle to keep the oil warm. It automatically shuts off when the compressor runs (the compressor generates its own heat). Many contractors wire it to run continuously during the heating season.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eHow do I know what wattage to choose?\u003c\/h4\u003e\n\u003cp\u003e40W is standard for residential compressors up to 3 tons. 70W is recommended for larger compressors (3.5-5 ton) or extremely cold climates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWill this increase my electric bill?\u003c\/h4\u003e\n\u003cp\u003eA 70W heater running 12 hours per day costs roughly $2-3 per month. This is minimal compared to the cost of a compressor replacement due to liquid slugging.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087845235,"sku":"NHVAC-HARD-34NXO6","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61ZYRyuQVdL._AC_SL1500_56fd004b-c2e2-4fc1-bc77-dd318493fd73.jpg?v=1781918105"},{"product_id":"crankcase-heater-40w-240v-12-inch-bolt-on-universal-compressor","title":"Crankcase Heater 40W 240V 12 Inch Bolt-On Universal Compressor","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eCrankcase Heater 40W 240V 12 Inch Bolt-On Universal Compressor\u003c\/h2\u003e\n    \u003cp\u003eA 40W compressor crankcase heater that prevents liquid refrigerant from migrating into the compressor oil during off cycles. Critical for heat pump systems and AC units in cold climates where refrigerant migration can cause compressor damage on startup.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eBolt-on mounting for secure attachment to compressor body\u003c\/li\u003e\n\u003cli\u003e40W output for standard residential compressors\u003c\/li\u003e\n\u003cli\u003e240V operation — connects to line voltage at the disconnect\u003c\/li\u003e\n\u003cli\u003eMaintains oil temperature above refrigerant condensation point\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eWattage: 40W\u003c\/li\u003e\n\u003cli\u003eVoltage: 240V\u003c\/li\u003e\n\u003cli\u003eLength: 12 inches\u003c\/li\u003e\n\u003cli\u003eStyle: Bolt-on\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eCrankcase heater\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhen do I need a crankcase heater?\u003c\/h4\u003e\n\u003cp\u003eCrankcase heaters are recommended for heat pumps in cold climates, AC units that sit idle for extended periods, and any system where liquid refrigerant migration has caused compressor failures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes the heater run all the time?\u003c\/h4\u003e\n\u003cp\u003eIt runs during the compressor off cycle to keep the oil warm. It automatically shuts off when the compressor runs (the compressor generates its own heat). Many contractors wire it to run continuously during the heating season.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eHow do I know what wattage to choose?\u003c\/h4\u003e\n\u003cp\u003e40W is standard for residential compressors up to 3 tons. 70W is recommended for larger compressors (3.5-5 ton) or extremely cold climates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWill this increase my electric bill?\u003c\/h4\u003e\n\u003cp\u003eA 70W heater running 12 hours per day costs roughly $2-3 per month. This is minimal compared to the cost of a compressor replacement due to liquid slugging.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087910771,"sku":"NHVAC-HARD-FTUOZM","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61ZYRyuQVdL._AC_SL1500.jpg?v=1781918103"},{"product_id":"compressor-sound-blanket-wrap-universal-noise-reduction-30x36-inch","title":"Compressor Sound Blanket Wrap Universal Noise Reduction 30x36 Inch","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eCompressor Sound Blanket Wrap Universal Noise Reduction 30x36 Inch\u003c\/h2\u003e\n    \u003cp\u003eProfessional compressor sound blanket wrap universal noise reduction 30x36 inch for residential and commercial HVAC compressor systems. Designed to improve compressor reliability and extend system life. Ships same-day from our Houston warehouse.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eUniversal compatibility with major HVAC compressor brands\u003c\/li\u003e\n\u003cli\u003eProfessional-grade construction for reliable long-term operation\u003c\/li\u003e\n\u003cli\u003eEasy installation for experienced technicians\u003c\/li\u003e\n\u003cli\u003eExtends compressor life and improves system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eApplication: HVAC compressor systems\u003c\/li\u003e\n\u003cli\u003eCompatibility: Universal\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eCompressor Sound Blanket Wrap Universal Noise Reduction 30x36 Inch\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eIs this compatible with my AC system?\u003c\/h4\u003e\n\u003cp\u003eThis is designed for universal compatibility with all major residential and commercial HVAC compressor systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need a professional to install this?\u003c\/h4\u003e\n\u003cp\u003eWhile experienced DIYers can handle installation, we recommend having a licensed HVAC technician install compressor accessories to ensure safety and proper operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat is the return policy?\u003c\/h4\u003e\n\u003cp\u003e30-day hassle-free returns on all items. Products must be in original condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes this ship quickly?\u003c\/h4\u003e\n\u003cp\u003eYes, orders before 3PM CST ship the same business day from Houston.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087943539,"sku":"NHVAC-HARD-HR1EBJ","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/71cSMXBBM0L._AC_SL1500.jpg?v=1781918099"},{"product_id":"suction-line-accumulator-1-2-inch-od-33-cu-in-heat-pump","title":"Suction Line Accumulator 1\/2 Inch OD 33 Cu In Heat Pump","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eSuction Line Accumulator 1\/2 Inch OD 33 Cu In Heat Pump\u003c\/h2\u003e\n    \u003cp\u003eProfessional suction line accumulator 1\/2 inch od 33 cu in heat pump for residential and commercial HVAC compressor systems. Designed to improve compressor reliability and extend system life. Ships same-day from our Houston warehouse.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eUniversal compatibility with major HVAC compressor brands\u003c\/li\u003e\n\u003cli\u003eProfessional-grade construction for reliable long-term operation\u003c\/li\u003e\n\u003cli\u003eEasy installation for experienced technicians\u003c\/li\u003e\n\u003cli\u003eExtends compressor life and improves system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eApplication: HVAC compressor systems\u003c\/li\u003e\n\u003cli\u003eCompatibility: Universal\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eSuction Line Accumulator 1\/2 Inch OD 33 Cu In Heat Pump\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eIs this compatible with my AC system?\u003c\/h4\u003e\n\u003cp\u003eThis is designed for universal compatibility with all major residential and commercial HVAC compressor systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need a professional to install this?\u003c\/h4\u003e\n\u003cp\u003eWhile experienced DIYers can handle installation, we recommend having a licensed HVAC technician install compressor accessories to ensure safety and proper operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat is the return policy?\u003c\/h4\u003e\n\u003cp\u003e30-day hassle-free returns on all items. Products must be in original condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes this ship quickly?\u003c\/h4\u003e\n\u003cp\u003eYes, orders before 3PM CST ship the same business day from Houston.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004087976307,"sku":"NHVAC-HARD-XN9S4K","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61LEAVHkYUL._AC_SL1500.jpg?v=1781918110"},{"product_id":"compressor-terminal-cover-round-3-pin-replacement-universal","title":"Compressor Terminal Cover Round 3 Pin Replacement Universal","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eCompressor Terminal Cover Round 3 Pin Replacement Universal\u003c\/h2\u003e\n    \u003cp\u003eProfessional compressor terminal cover round 3 pin replacement universal for residential and commercial HVAC compressor systems. Designed to improve compressor reliability and extend system life. Ships same-day from our Houston warehouse.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eUniversal compatibility with major HVAC compressor brands\u003c\/li\u003e\n\u003cli\u003eProfessional-grade construction for reliable long-term operation\u003c\/li\u003e\n\u003cli\u003eEasy installation for experienced technicians\u003c\/li\u003e\n\u003cli\u003eExtends compressor life and improves system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eApplication: HVAC compressor systems\u003c\/li\u003e\n\u003cli\u003eCompatibility: Universal\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eCompressor Terminal Cover Round 3 Pin Replacement Universal\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eIs this compatible with my AC system?\u003c\/h4\u003e\n\u003cp\u003eThis is designed for universal compatibility with all major residential and commercial HVAC compressor systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need a professional to install this?\u003c\/h4\u003e\n\u003cp\u003eWhile experienced DIYers can handle installation, we recommend having a licensed HVAC technician install compressor accessories to ensure safety and proper operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat is the return policy?\u003c\/h4\u003e\n\u003cp\u003e30-day hassle-free returns on all items. Products must be in original condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDoes this ship quickly?\u003c\/h4\u003e\n\u003cp\u003eYes, orders before 3PM CST ship the same business day from Houston.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004088041843,"sku":"NHVAC-HARD-W1K7HD","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/51BkdYttqOL._AC_SL1500.jpg?v=1781918101"}],"url":"https:\/\/nationalhvacparts.com\/collections\/hard-start-kits-compressor-accessories.oembed","provider":"National HVAC Parts","version":"1.0","type":"link"}