{"product_id":"lennox-armstrong-defrost-control-board-20483901-b-honeywell-1155-101-d335a","title":"Lennox Armstrong Defrost Control Board 20483901-B Honeywell 1155-101  #D335A","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 Part Number: 20483901-B (also referenced as 68M64, 64M6401)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e· Compatible Brands: Lennox, Armstrong, Ducane · Function: Defrost control, blower motor control, and heat pump operation management · Application: Controls defrost cycles in heat pump systems to prevent ice buildup · Monitors system sensors and safety switches to coordinate HVAC component operation · Voltage: Designed for 115V to 120V HVAC systems · Circuit Board Type: Control\/defrost board with integrated relays and logic for timing · Replacement for original equipment defective control boards with part number 20483901-B · Installation: Direct replacement for Lennox Armstrong heat pumps and related models · Helps maintain system efficiency and reliable heat pump performance · Dimensions and mounting specifics compatible with OEM housings and connections\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43673020596333,"sku":"13582","price":297.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_8258a9f4-b239-45bd-a839-75e85b6116f5.jpg?v=1763346015","url":"https:\/\/willardshvacsupply.com\/products\/lennox-armstrong-defrost-control-board-20483901-b-honeywell-1155-101-d335a","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}