{"product_id":"50a51-405-white-rodgers-furnace-control-circuit-board","title":"50A51-405  White Rodgers Furnace Control Circuit Board","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e· OEM upgraded control module compatible with White Rodgers 50A51-405 and Trane\/American Standard furnaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e· Controls integrated furnace ignition, blower motor operation, and safety monitoring via microcomputer-based circuitry · Supports 24V two-stage heating systems with silicon carbide hot surface ignitor (HSI) · Operates on 120VAC power supply with on-board relay for system components · Dimensions approximately 8 inches (length) x 10 cm (width) x 1 inch (thickness) · Includes field-adjustable heating fan off delay through dip-switch settings · Replacement for older obsolete control boards for compatible furnace models · Part of White Rodgers’ 50A50\/50A51 integrated furnace control series designed for residential gas furnaces · Partial compatibility list includes various Trane and American Standard furnace models—refer to manufacturer specs for exact fitment\u003c\/p\u003e\u003cp\u003eThis description synthesizes technical details primarily from OEM and distributor sources and product datasheets to ensure accurate specification presentation.\u003c\/p\u003e","brand":"White Rodgers","offers":[{"title":"Default Title","offer_id":43673241518189,"sku":"15357","price":680.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_6e76d5a4-65da-4041-8f43-88fc6ad2e0d7.jpg?v=1763352124","url":"https:\/\/willardshvacsupply.com\/products\/50a51-405-white-rodgers-furnace-control-circuit-board","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}