{"product_id":"nordyne-903429-integrated-furnace-control-board-m1-series","title":"Nordyne 903429 Integrated Furnace Control Board – M1 Series","description":"\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 903429\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Nordyne \/ Nortek\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Integrated Furnace Control Board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas \/ Oil Furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFurnace Series:\u003c\/strong\u003e M1 Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 120 VAC, 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Voltage:\u003c\/strong\u003e 18–30 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition:\u003c\/strong\u003e Hot Surface Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part:\u003c\/strong\u003e 903429\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Replacement:\u003c\/strong\u003e 903429A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003e903429\u003c\/strong\u003e is an integrated furnace control used in Nordyne M1-series equipment. The original 903429 has been discontinued and is now replaced by \u003cstrong\u003e903429A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eReplacement \u0026amp; Cross-Reference Part Numbers\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e903429 \/ 903429A\u003c\/strong\u003e replaces or cross-references with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e903429\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e903429A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e624602\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6246020\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e624602-0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e624602A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e624602B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e624640\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e624640-A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1012-93-9581A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1012-012-958A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e233089\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eICM specifically lists \u003cstrong\u003e903429, 624602, 624640, 1012-93-9581A, 1012-012-958A and 233089\u003c\/strong\u003e as boards replaced by its ICM2818 Nordyne replacement control. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eNordyne 903429 Furnace Control Board\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNordyne 903429\u003c\/strong\u003e is an integrated furnace control board used in select \u003cstrong\u003eNordyne, Miller and Intertherm M1-series furnaces\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe control board manages the furnace operating sequence, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInduced draft blower\u003c\/li\u003e\n\u003cli\u003eCirculating blower\u003c\/li\u003e\n\u003cli\u003eHot surface ignitor\u003c\/li\u003e\n\u003cli\u003eGas valve\u003c\/li\u003e\n\u003cli\u003eFlame sensing\u003c\/li\u003e\n\u003cli\u003eFurnace safety monitoring\u003c\/li\u003e\n\u003cli\u003eDiagnostic fault operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe board receives thermostat and furnace safety inputs and controls the appropriate components throughout the heating cycle. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatible Furnace Series\u003c\/h2\u003e\n\u003cp\u003eThe 903429 is documented for \u003cstrong\u003eM1 Series\u003c\/strong\u003e furnaces, including \u003cstrong\u003eM1M-A\/B\/C\/D\u003c\/strong\u003e applications. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eKnown compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eM1MA056AAW\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM1MA056ABW\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM1MA070AAW\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM1MA070ABW\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM1MB056AAW\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM1MB090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM1MD090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM1MAH070\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eParts data specifically identifies these as applications for the 903429 control. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e903429A Replacement for 903429\u003c\/h2\u003e\n\u003cp\u003eThe original \u003cstrong\u003eNordyne 903429 has been discontinued\u003c\/strong\u003e. The direct replacement is \u003cstrong\u003e903429A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe newer \u003cstrong\u003e903429A version requires a flame sensor to be added\u003c\/strong\u003e, and replacement kits may include the required flame sensor. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an important distinction when replacing an older 903429 board.\u003c\/p\u003e\n\u003ch2\u003eCommon Symptoms of a Failed Furnace Control Board\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace will not start\u003c\/li\u003e\n\u003cli\u003eInducer motor does not energize\u003c\/li\u003e\n\u003cli\u003eHot surface ignitor does not energize\u003c\/li\u003e\n\u003cli\u003eGas valve does not receive power\u003c\/li\u003e\n\u003cli\u003eCirculating blower does not operate\u003c\/li\u003e\n\u003cli\u003eBlower runs continuously\u003c\/li\u003e\n\u003cli\u003eFurnace starts and then shuts down\u003c\/li\u003e\n\u003cli\u003eIntermittent furnace operation\u003c\/li\u003e\n\u003cli\u003eFurnace goes into safety lockout\u003c\/li\u003e\n\u003cli\u003eControl board does not properly sequence furnace operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOther furnace components can produce similar symptoms, so the control board should be properly diagnosed before replacement.\u003c\/p\u003e\n\u003ch2\u003eBuy Nordyne 903429 \/ 903429A Control Board in Canada\u003c\/h2\u003e\n\u003cp\u003eBuy the \u003cstrong\u003eNordyne 903429 \/ 903429A Integrated Furnace Control Board\u003c\/strong\u003e from \u003cstrong\u003eOemHvacPartsCanada.ca\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Oem Hvac Parts Canada","offers":[{"title":"Default Title","offer_id":53736320696596,"sku":null,"price":500.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/6146\/6132\/files\/oem903429.jpg?v=1787956200","url":"https:\/\/oemhvacpartscanada.ca\/products\/nordyne-903429-integrated-furnace-control-board-m1-series","provider":"Oem Hvac Parts Canada","version":"1.0","type":"link"}