{"product_id":"original-outdoor-main-control-board-subassembly-17122300003982-for-us1-kfr78w-17122300001076","title":"17122300003982 Outdoor Main Control Board Subassembly For US1-KFR78W \/ 17122300001076","description":"\u003cp\u003eRestore intelligent system regulation, fault diagnostics, and multi-circuit electronic expansion valve control to your multi-zone ductless heat pump condensing unit with this authentic OEM Outdoor Main Control Board Subassembly (Part 17122300003982 \/ PCB Reference 17122300001076). Engineered specifically for Midea and compatible OEM multi-zone inverter systems, this advanced master control board integrates an on-board two-digit LED diagnostic display, 4 dedicated EEV drive ports (A, B, C, D), high-current dual line chokes, and factory-routed wiring leads for stable all-weather operation.\u003c\/p\u003e\n\n\u003ch3\u003eWhy HVAC Professionals \u0026amp; Technicians Choose This Board\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% Direct OEM Replacement:\u003c\/strong\u003e Built to exact mechanical mounting dimensions, terminal positions, and wiring harness pinouts for seamless drop-in installation with zero field alterations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDedicated Multi-Zone EEV Stepper Control:\u003c\/strong\u003e Features 4 color-coded, labeled stepper motor headers (A, B, C, D) for precision individual metering to each indoor evaporator head.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-Board Two-Digit LED Fault Display:\u003c\/strong\u003e Provides direct real-time readout of system operating codes and diagnostic error definitions for rapid on-site troubleshooting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Quality Benchmarking:\u003c\/strong\u003e Every board undergoes 100% automated electrical load testing, high-voltage endurance checks, and full functional cycle verification prior to dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse; margin-top: 10px; margin-bottom: 20px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width: 40%;\"\u003e\u003cstrong\u003ePrimary Part Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e17122300003982\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePCB \/ Superseded Reference\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e17122300001076\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCompatible Unit Model\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eUS1-KFR78W Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eUnit Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eOutdoor Condensing Unit (~27,000 – 36,000 BTU \/ Multi-Zone)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e208-230V AC, 50\/60 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eZone Capability\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eMulti-Zone (Up to 4 Indoor Ports: A, B, C, D)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIntegrated 2-Digit LED Digital Code Display\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePhysical Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e11 × 8 × 2-1\/2 in\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eShipping Dimensions \u0026amp; Weight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e13 × 10 × 6 inches | 3.5 lbs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Condition\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBrand New Factory Original Replacement\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCross-Reference \u0026amp; System Compatibility\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse; margin-top: 10px; margin-bottom: 20px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"width: 40%; text-align: left;\"\u003eBrand \/ System Line\u003c\/th\u003e\n      \u003cth style=\"text-align: left;\"\u003eCompatible Equipment\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMidea \u0026amp; OEM Inverter Systems\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCompatible with US1-KFR78W multi-zone ductless mini-split heat pump outdoor condensing units specifying part 17122300003982\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFitment Assurance Guarantee\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUnsure if this main board matches your outdoor unit?\u003c\/strong\u003e\u003cbr\u003eMulti-zone control boards must match exact factory firmware revisions and terminal layouts. Avoid costly downtime and return shipping delays—simply take a quick photo of your existing board barcode label or outdoor unit nameplate and contact us. Our HVAC technical specialists will verify exact compatibility for you within 12 hours.\u003c\/p\u003e","brand":"Midea","offers":[{"title":"Default Title","offer_id":67648169476207,"sku":"17122300003982","price":147.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/9113\/8927\/files\/23398.jpg?v=1791019034","url":"https:\/\/hvacrefrigerationparts.com\/en\/products\/original-outdoor-main-control-board-subassembly-17122300003982-for-us1-kfr78w-17122300001076","provider":"HVAC Parts Center","version":"1.0","type":"link"}