{"product_id":"upgraded-roboa-r40403-003-furnace-blower-control-b","title":"Upgraded ROBOA R40403-003 Furnace Blower Control Board Replacement For ST9120 A B C And 40403-001 40403-002 40403-003 Direct Fit Compatible With Armstrong Allied Ducane Magic Chef","description":"\u003cdiv\u003eDirect single unit furnace blower control board for ST9120\n✔️ Replaces R40403-001\/002\/003; fits ST9120A\/B\/C control \u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis upgraded furnace blower control board is a direct plug-and-play replacement designed for residential furnaces using ST9120 controls. It's compatible with Armstrong, Allied, Ducane, Magic Chef, and other major brands, providing dependable performance in a wide range of systems.\u003c\/p\u003e ✅ Direct replacement for R40403-001\/002\/003 and 20054502 \u003cbr\u003e\n✅ Compatible with ST9120A\/B\/C controls and Armstrong Allied brands \u003cbr\u003e\n✅ Operating Line Voltage: 85-135 VAC, 50\/60Hz; Secondary 18-30 VAC \u003cbr\u003e\n✅ Max Blower Load: 15FLA\/30LRA @120VAC; Max Inducer Load: 3FLA\/10LRA @120VAC \u003cbr\u003e\n✅ 5-amp replaceable fuse for 24V circuit; dip switch for blower delay \u003cbr\u003e\n✅ Moisture and corrosion resistant PCB for long-term performance \u003cbr\u003e \u003cp\u003e💡 What is a furnace blower control board used for? This handy module acts as the brain of your furnace blower, managing speeds, sequencing, and safety interlocks across heating cycles. - It coordinates blower motor operation and blower delay timing\n- It handles main power 85-135 VAC and control voltage 18-30 VAC with built-in protection\n- It enables plug-and-play replacement for ST9120 controls and 40403 variants\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52511745376575,"sku":"VXB0CY7YZHVH","price":123.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/furnace-blower-control-board-layside-view.jpg?v=1776658980","url":"https:\/\/bearingscanada.com\/products\/upgraded-roboa-r40403-003-furnace-blower-control-b","provider":"Bearings Canada","version":"1.0","type":"link"}