{"product_id":"624754r","title":"624754R Nordyne Control Board","description":"\u003ch1\u003e624754R Nordyne Control Board\u003c\/h1\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe 624754R is the OEM microprocessor control board for Nordyne\/Coleman gas furnaces and packaged heat pump systems. It orchestrates ignition sequencing, inducer control, gas valve operation, blower staging, safety interlocks, and fault diagnostics. An onboard LED communicates multi-flash fault codes for rapid troubleshooting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e624754R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L×W×H)\u003c\/td\u003e\n\u003ctd\u003e5.5 in × 3.15 in × 3.05 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.52 lb (235 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors\u003c\/td\u003e\n\u003ctd\u003eX1 (line\/transformer), X2 (safeties), X3 (gas\/ignitor\/flame sense)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic LED\u003c\/td\u003e\n\u003ctd\u003eMulti-flash fault-code indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Protection\u003c\/td\u003e\n\u003ctd\u003eConformal coating, corrosion-resistant terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis board supersedes original part 624754 and fits a broad range of Nordyne\/Coleman equipment:\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eOriginal Part No.\u003c\/th\u003e\n\u003cth\u003eReplacement\u003c\/th\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e624754\u003c\/td\u003e\n\u003ctd\u003e624754R\u003c\/td\u003e\n\u003ctd\u003eM4, M6, M7 gas furnaces (downflow\/upflow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e624754\u003c\/td\u003e\n\u003ctd\u003e624754R\u003c\/td\u003e\n\u003ctd\u003eDD, Q5RE, PCM packaged heat pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eAlways verify your furnace or heat pump’s data plate and control harness configuration before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eInstallation Tips\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePower Down First Disconnect all electrical supply before servicing to prevent damage or injury.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDocument \u0026amp; Label Wiring Photograph harness connections at X1, X2, and X3 before removal; relabel wires to ensure accurate reassembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMount Securely Use OEM standoffs; avoid over-torquing screws to prevent PCB stress or warping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify 24 VAC Measure voltage at the board’s X1 terminals; confirm ~24 VAC before connecting safety and gas circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCommissioning After restoration of power, observe LED flash patterns. Refer to the fault-code chart to clear any pre-existing errors.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCross-Reference \u0026amp; Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOEM Replacement Mapping: 624754 → 624754R\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLED Fault-Code Lookup Chart for Nordyne Control Boards\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWiring-Diagram Overlay with Connector Pin-outs (X1, X2, X3)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTroubleshooting Flowchart: “No Ignition” → “Lockout Reset Procedure”\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":16078944665666,"sku":"624754R","price":152.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/OIP_19.webp?v=1756925784","url":"https:\/\/hvacpartstore.com\/products\/624754r","provider":"HVACpartstore","version":"1.0","type":"link"}