{"product_id":"a55-m1-5-lennox-hvac-control-board-rev-c-replacement","title":"A55-M1-5 | Lennox HVAC Control Board Rev C Replacement","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"417\" data-start=\"137\"\u003eThe Lennox A55-M1-5 Control Board Rev C is an integrated HVAC control module designed to manage core system operations and safety functions. Identified by part number A55-M1-5, this board coordinates low-voltage control signals to ensure stable and reliable equipment performance. It is used in compatible Lennox heating systems as a direct replacement control solution.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\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\u003eLennox\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA55-M1-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eControl Boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC System Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Revision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRev C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResidential HVAC Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFurnace Panel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWired Terminal Connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOpen Control Board Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndoor HVAC Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuty Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContinuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.9 lb\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\u003cspan data-sheets-root=\"1\"\u003e A55-M1-5\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe A55-M1-5 is part of Lennox’s A55 series control boards developed for residential HVAC equipment requiring dependable electronic control. This revision C board features integrated circuitry to manage operational sequencing, safety monitoring, and system response. It interfaces directly with thermostats, sensors, and system components using standard low-voltage connections. The control board is intended for compatible Lennox systems where accurate control logic and long-term reliability are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated HVAC Control Logic: Coordinates system operation, timing, and safety responses.\u003c\/li\u003e\n\u003cli\u003eLow-Voltage Operation: Designed for standard 24V HVAC control circuits.\u003c\/li\u003e\n\u003cli\u003eRevision C Design: Updated board revision ensuring stable and consistent control performance.\u003c\/li\u003e\n\u003cli\u003eSafety Monitoring Support: Interfaces with limit switches and protection circuits.\u003c\/li\u003e\n\u003cli\u003eSystem Sequencing Control: Manages startup, operation, and shutdown logic.\u003c\/li\u003e\n\u003cli\u003eOEM Replacement Board: Matches Lennox specifications for direct installation.\u003c\/li\u003e\n\u003cli\u003eCompact Control Board Layout: Fits standard furnace control mounting locations.\u003c\/li\u003e\n\u003cli\u003eDurable Electronic Construction: Built to withstand thermal and electrical stresses.\u003c\/li\u003e\n\u003cli\u003eWired Terminal Interface: Provides secure connections for system wiring and controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe A55-M1-5 delivers the reliability and precision required for residential HVAC system control and safety management.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":49105051451648,"sku":"A55-M1-5","price":880.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_0a4a1c77-2487-4739-a5a3-d783ad9874e0.webp?v=1785538881","url":"https:\/\/alotechparts.com\/products\/a55-m1-5-lennox-hvac-control-board-rev-c-replacement","provider":"Alo Tech Solutions","version":"1.0","type":"link"}