{"product_id":"1157-850-guaranteed-working-tested-good-control-board-100135-02","title":"1157-850 GUARANTEED WORKING TESTED GOOD Control Board 100135-02","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• Control board model: Lennox 100135-02 (also fits 1157-850, 100135-03, 100135-05)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Application: Heat pump defrost control for HVAC systems  • Functionality: Manages and regulates defrost cycles to prevent ice buildup  • Defrost termination temperature selections: 50ºF, 70ºF, 90ºF, and 100ºF (10ºC, 21ºC, 32ºC, 38ºC)  • Factory default termination temperature: 90ºF (32ºC), adjustable via jumper settings  • Features:    – 5-strike lockout to protect system during repetitive faults    – Low-pressure switch fault detection and lockout    – Anti-short cycle protection to prevent frequent compressor cycling  • Test mode: Allows entering and verifying defrost cycle with diagnostic LED indicators  • Dimensions (approximate): 6 inches x 3.5 inches (from similar Lennox boards)  • Compatible with multiple OEM HVAC brands (Lennox, Armstrong, Ducane)  • Connector type: Standard harness connector for sensor and control wiring integration\u003c\/p\u003e\u003cp\u003eThis control board is critical for maintaining efficient heat pump operation by ensuring timely and controlled defrost sequences, extending the lifespan and reliability of the HVAC system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":43672851120237,"sku":"11995","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_d71db8d4-1f8b-48d7-b829-113bdf5b3f51.jpg?v=1763340506","url":"https:\/\/willardshvacsupply.com\/products\/1157-850-guaranteed-working-tested-good-control-board-100135-02","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}