{"product_id":"oem-lennox-fixed-limit-switch-42j03","title":"OEM Lennox Fixed Limit Switch — 42J03","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 42J03 (42J0301)\u003c\/strong\u003e is a genuine OEM fixed limit switch designed to protect your Lennox furnace from dangerous overheating conditions by shutting off the burner when a preset temperature threshold is exceeded. If your furnace is short-cycling, failing to ignite, or continuously running the blower without heat, a faulty limit switch may be the cause. This direct OEM replacement ensures proper fit and reliable performance in compatible Lennox heating systems.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081057059187,"sku":"LNX-42J03","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-fixed-limit-switch-42j03","provider":"National HVAC Parts","version":"1.0","type":"link"}