{"product_id":"carrier-hk42fz040-factory-authorized-integrated-furnace-control-board-for-compatible-hvac-heating-systems","title":"Carrier HK42FZ040 Factory Authorized Integrated Furnace Control Board for Compatible HVAC Heating Systems","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe Carrier HK42FZ040 is a Factory Authorized Parts™ OEM control board designed to manage the primary operating functions of compatible Carrier gas furnaces and HVAC systems. It coordinates ignition, blower operation, safety monitoring, and thermostat communication to ensure reliable equipment performance. Manufactured to Carrier specifications, the HK42FZ040 provides a direct replacement solution that maintains original system functionality and electrical compatibility.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarrier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eControls \u0026amp; Indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHK42FZ040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCPU\/Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFactory Authorized Parts™ Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated Furnace Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResidential gas furnace control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOEM Status\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGenuine OEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Brands\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarrier, Bryant, Payne\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIgnition Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHot Surface Ignition (HSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlower Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePSC blower motor systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuse Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplaces Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHK42FZ028\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMexico\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-1\/16 × 6-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.45 kgs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About HK42FZ040\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe HK42FZ040 is a Factory Authorized Parts™ integrated furnace control board developed for compatible Carrier, Bryant, and Payne heating systems. It serves as the central electronic controller by processing thermostat inputs, sequencing the ignition cycle, operating the blower motor, and continuously monitoring system safety devices throughout each heating cycle. Designed as a genuine OEM replacement, the board preserves factory wiring configurations, onboard diagnostics, and original operating characteristics. It replaces the earlier HK42FZ028 control board and is used in numerous high-efficiency furnace models equipped with hot surface ignition and PSC blower motors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine OEM Component: Manufactured by Carrier as a Factory Authorized Parts™ replacement.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIntegrated Furnace Control: Manages ignition, blower, and heating control sequences.\u003c\/li\u003e\n\u003cli\u003eThermostat Interface: Processes low-voltage thermostat commands for accurate system operation.\u003c\/li\u003e\n\u003cli\u003eBuilt-In Diagnostics: Provides LED diagnostic indicators to simplify troubleshooting and maintenance.\u003c\/li\u003e\n\u003cli\u003eSafety Monitoring: Continuously monitors pressure switches, limit switches, and flame sensing circuits.\u003c\/li\u003e\n\u003cli\u003eDirect Replacement Design: Matches original mounting points and electrical connections on compatible equipment.\u003c\/li\u003e\n\u003cli\u003eWide Equipment Compatibility: Used in numerous Carrier, Bryant, and Payne high-efficiency furnaces.\u003c\/li\u003e\n\u003cli\u003eReliable Electronic Construction: Designed for continuous operation in residential HVAC environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe HK42FZ040 delivers the reliability and precision required for integrated furnace control and dependable HVAC system operation.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":52203751997738,"sku":"HK42FZ040","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_1809ab57-b4bb-4c03-b481-06b36f6e5af7.webp?v=1786272563","url":"https:\/\/iqelectro.com\/products\/carrier-hk42fz040-factory-authorized-integrated-furnace-control-board-for-compatible-hvac-heating-systems","provider":"IQElectro","version":"1.0","type":"link"}