{"product_id":"upgraded-r40403-003-furnace-blower-control-circuit-board-st9120c","title":"Upgraded R40403-003 Furnace Blower Control Circuit Board ST9120C","description":"\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDirect Replacement and Wide CompatibilityThis furnace blower control board directly replaces R40403-001, R40403-002, R40403-003, and 20054502. It is fully compatible with ST9120A, B, and C controls, and works with Armstrong, Allied, Ducane, Magic Chef, and other major brands\u003c\/li\u003e\n\u003cli\u003eUpgraded Design for Enhanced DurabilityEngineered with improved power components to reduce overheating and extend lifespan. Features a 5-amp replaceable fuse for the 24V circuit and a dip switch for adjustable blower delay settings\u003c\/li\u003e\n\u003cli\u003ePrecise Technical SpecificationsOperating Line Voltage: 85–135 VAC, 50\/60Hz. Secondary Control Voltage: 18–30 VAC. Max Blower Load: 15FLA\/30LRA @120VAC. Max Inducer Load: 3FLA\/10LRA @120VAC\u003c\/li\u003e\n\u003cli\u003eEasy Plug and Play InstallationNo wiring modifications needed. Works with original and updated systems. For best results, take a photo of your current wiring before disconnecting to simplify reinstallation\u003c\/li\u003e\n\u003cli\u003eReliable Performance and Moisture ResistanceConstructed with high-quality PCB materials and precision welding for stable operation. Resists moisture and corrosion, ensuring long-term durability in demanding conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFree shipping included. 30-day hassle-free returns.\u003c\/p\u003e","brand":"Belmont Warehouse","offers":[{"title":"Default Title","offer_id":43330955149521,"sku":"BW-B0CY7YZHVH","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/3123\/5793\/files\/81hz_wWt0qL._SL1500.jpg?v=1790358328","url":"https:\/\/belmontwarehouse.com\/products\/upgraded-r40403-003-furnace-blower-control-circuit-board-st9120c","provider":"Belmont Warehouse","version":"1.0","type":"link"}