{"product_id":"040-422","title":"040-422","description":"This 90-100F limit switch is a critical safety and regulation component designed for residential HVAC systems, furnaces, and heating appliances. As a fan disc high-limit control, it monitors internal temperatures to ensure the blower fan operates correctly and prevents the system from overheating. When the ambient temperature reaches the designated 90-100 degree Fahrenheit range, the bimetal disc triggers a snap-action response to open or close the electrical circuit. Replacing a worn or malfunctioning thermal switch is essential for maintaining furnace efficiency, protecting internal components from heat damage, and ensuring consistent home climate control.\u003cbr\u003e\nType: Fan Disc High Limit Control Switch\u003cbr\u003e\nSize: Small\u003cbr\u003e\nApplication: Commonly used in furnaces, electric heaters, and central heating units to regulate blower fan activation and provide high-limit thermal protection.\u003cbr\u003e\nSpecifications: Operating temperature range: 90-100°F; Snap-action bimetal disc mechanism; High-limit safety cut-out functionality.","brand":"BCFurnace","offers":[{"title":"Limit Switch, 90-100F \/ 040-422","offer_id":50215883407645,"sku":null,"price":325.9,"currency_code":"CAD","in_stock":true},{"title":"Limit Switch, 90-100F \/ HH18HV100","offer_id":50215883440413,"sku":null,"price":325.9,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/e263df39b99a440aacbc30bb03d6d600.webp?v=1773961146","url":"https:\/\/bcfurnace.myshopify.com\/products\/040-422","provider":"BCFurnace","version":"1.0","type":"link"}