{"title":"B5 \/ GB5 Indoor Air Handler Parts","description":"\u003ch2\u003eB5 \/ GB5 Indoor Air Handler Parts\u003c\/h2\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/B5BMparts_Page_1_1024x1024.jpg?v=1705122117\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/B5BMparts_Page_2_1024x1024.jpg?v=1705122166\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/B5BMparts_Page_3_1024x1024.jpg?v=1705122205\"\u003e\u003c\/div\u003e","products":[{"product_id":"904531-nordyne-single-stage-air-handler-control-board","title":"904531 Nordyne Single Stage Air Handler Control Board","description":"\u003ch1\u003e904531 Nordyne Single Stage Air Handler Control Board\u003c\/h1\u003e\n\u003cp\u003eNordyne air handle 1-stage control circuit board. Board measures 3.5 x 5 inches. Replaces 1139-600, 624663-0 and 624663. FRU, PCB, B5.\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e904531 is a genuine OEM Nordyne single-stage air handler control circuit board. It measures 3.5 × 5 inches and replaces legacy boards 1139-600 and 624663, providing reliable on\/off sequencing for fan and blower functions in compatible indoor air handlers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnical 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\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard dimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 in × 5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB type\u003c\/td\u003e\n\u003ctd\u003eRigid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl type\u003c\/td\u003e\n\u003ctd\u003eSingle-stage air handler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent package type\u003c\/td\u003e\n\u003ctd\u003eThrough-hole and surface mount mixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e1.7505 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping dimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e10 in × 12 in × 12 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging weight\u003c\/td\u003e\n\u003ctd\u003e10 oz\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\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eOEM Part Number\u003c\/th\u003e\n\u003cth\u003eReplaces\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e904531\u003c\/td\u003e\n\u003ctd\u003e1139-600, 624663\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\u003eFits Nordyne B5 and GB5 series indoor air handlers equipped with a single-stage control board. Before ordering, verify mounting hole pattern, connector pin-out, and harness compatibility against the existing control board.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003ePackaging \u0026amp; Shipping\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePackaged in a standard 10 × 12 × 12 in box.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIncludes protective foam inserts and ESD-safe bag.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTotal shipping weight: approximately 1.44 lb (1.7505 lb net + 10 oz packaging).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eInstallation \u0026amp; Technician Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDe-energize power and follow lockout\/tagout procedures before servicing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRemove the air handler’s access panel to expose the existing control board.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePhotograph or label each wire harness and terminal to ensure correct reconnection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUnscrew mounting standoffs and carefully lift out the old board.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePosition the new 904531 board on the standoffs, secure with screws, and reconnect all harnesses.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRestore power and run the air handler through a start\/stop cycle to confirm blower, fan, and safety interlocks operate correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for any error codes or LED fault indicators; consult the OEM service manual if needed.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":13004501251,"sku":"904531","price":129.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/products\/yhst-130159302524877_2272_204385518.jpeg?v=1566073472"},{"product_id":"to621807","title":"621807 Nordyne 120V-PRI 24V-SEC 30VA TRANSFORMER","description":"\u003ch2\u003e621807 Nordyne 120V-PRI 24V-SEC 30VA TRANSFORMER\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eReplaces \u003cspan data-mce-fragment=\"1\"\u003eS1-02521911701\u003c\/span\u003e\u003c\/p\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":16079327690818,"sku":"621807","price":38.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/th_52_b14e09b6-6f67-4833-a3ea-cb599e343f0e.jpg?v=1705966990"},{"product_id":"blend-air-blend-air-deluxe-ii-manual-trouble-shoot-guide-parts-breakdown","title":"Blend Air \u0026 Blend Air Deluxe II Manual, Trouble Shoot Guide, Parts Breakdown","description":"\u003ch1\u003e\u003cstrong\u003eBlend Air \u0026amp; Blend Air Deluxe II Manual, Trouble Shoot Guide, Parts Breakdown (Download) For Models 7681-8171, 7681-8171\/A, 7681-8171\/B, 7681-8191, 7681-8191\/A\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e23 pages of information everything from A to Z on the Blend Air Systems\u003c\/strong\u003e\u003c\/h3\u003e","brand":"HVAC Part Store","offers":[{"title":"Default Title","offer_id":32606547378242,"sku":"Blend Air","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/products\/BlendPDF.jpg?v=1739517554"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/collections\/B5BM_parts_Page_1.jpg?v=1705122339","url":"https:\/\/hvacpartstore.com\/collections\/b5-gb5-indoor-air-handler-parts.oembed","provider":"HVACpartstore","version":"1.0","type":"link"}