{"product_id":"50a50-474-white-rodgers-furnace-control-board-25-vac-input-045-a","title":"50A50-474 | White Rodgers Furnace Control Board, 25 VAC Input, 0.45 A","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Honeywell 50A50-474 is a furnace control circuit board engineered for integrated management of ignition, blower, and safety systems. Operating at 25 VAC and 0.45 A, this module serves as the central controller—or \"brain\"—in compatible HVAC systems. Designed for residential and light commercial furnaces, it ensures precise control and safe operation throughout the heating cycle.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 333.094px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003eHoneywell \/ Emerson \/ White-Rodgers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003eControls \u0026amp; Indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003e50A50-474\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003eCPU\/Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003e25 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003e0.45 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003eTrane, American Standard, Goodman furnaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 39.1875px;\"\u003e\u003cstrong\u003eControl Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 39.1875px;\"\u003eIgnition sequencing, blower management, safety monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 39.1875px;\"\u003e\u003cstrong\u003eDiagnostic Capability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 39.1875px;\"\u003eLED indicators or fault code support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eInstallation Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003ePlug-in or solder-in replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eStatus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003eDiscontinued (surplus availability)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.935%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7524%; height: 19.5938px;\"\u003e1.00 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\"\u003e50A50-474\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe 50A50-474 is part of the Emerson\/White‑Rodgers series of ignition control boards, widely used in Trane, American Standard, and Goodman furnace platforms. Built for direct compatibility, it replaces earlier part numbers and integrates seamlessly into multiple OEM systems. With embedded timing and diagnostic functions, it interacts with safety sensors and manages sequence logic reliably. Manufactured to match original factory specifications, it’s ideal for repair and refurbishment efforts in legacy heating systems.\u003c\/p\u003e\n\u003cp data-start=\"992\" data-end=\"1011\"\u003e\u003cstrong data-start=\"992\" data-end=\"1009\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Replacement Fit: Replaces part numbers 50A50-474 and 50A50474 for direct installation.\u003c\/li\u003e\n\u003cli\u003e25 VAC Input Voltage: Operates on standard furnace control transformer voltage.\u003c\/li\u003e\n\u003cli\u003e0.45 A Current Rating: Provides sufficient current to manage ignition and system components.\u003c\/li\u003e\n\u003cli\u003eIgnition and Blower Control: Coordinates firing and blower timing for proper heating cycles.\u003c\/li\u003e\n\u003cli\u003eSafety Monitoring: Continuously checks safety switches and sensors to ensure operational safety. \u003c\/li\u003e\n\u003cli\u003eDiagnostic Indicators: Includes LEDs or built-in fault codes for streamlined maintenance.\u003c\/li\u003e\n\u003cli\u003eSurplus Availability: Listed as discontinued by manufacturer, but still available through surplus and aftermarket suppliers. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 50A50-474 delivers the reliability and precision required for safe furnace operation and serviceability in OEM HVAC systems.\u003c\/p\u003e","brand":"White Rodgers","offers":[{"title":"Default Title","offer_id":49105253335296,"sku":"50A50-474","price":668.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_d679b4b8-cf8f-4af8-b911-c387b86c431f.webp?v=1785543560","url":"https:\/\/alotechparts.com\/products\/50a50-474-white-rodgers-furnace-control-board-25-vac-input-045-a","provider":"Alo Tech Solutions","version":"1.0","type":"link"}