{"product_id":"lennox-49m5901-surelight-50v61-120-furnace-control-circuit-board-v25","title":"LENNOX 49M5901 SureLight 50V61-120 Furnace Control Circuit Board  #V25","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· Model numbers: LENNOX 49M5901, 50V61-120-03 (also known as White Rodgers 50V61-120-03)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e· Type: Two-stage, variable speed integrated furnace control board · Voltage: 120 V primary with 24 V secondary transformer (40VA rating) · Controls ignition and blower functions with integrated safety relays · Features two LED indicators (DS1 and DS2) for troubleshooting and error codes · Compatible with single-stage and two-stage thermostat operation modes (configurable via dip switch) · Includes terminals for gas valve control (1st and 2nd stage), pressure switches, rollout and primary limit switches, ignitor, and combustion air inducer connections · Supports flame sense input with minimum flame sense current of 0.15–0.17 microAmps · Designed for Lennox furnace models equipped with SureLight integrated controls · Provides blower off delay and second stage heat on delay functions · OEM replacement part ensuring proper fit and function in compatible Lennox units\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":43672965611629,"sku":"13243","price":207.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_4240692b-0a8d-4c51-b0ba-5cabe3f189aa.jpg?v=1763344834","url":"https:\/\/willardshvacsupply.com\/products\/lennox-49m5901-surelight-50v61-120-furnace-control-circuit-board-v25","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}