{"product_id":"oem-lennox-switch-casting-temp-q90-36t26-42930-300-74n45","title":"OEM Lennox Switch Casting Temp Q90 36T26-42930 300 — 74N45","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 74N45\u003c\/strong\u003e is a genuine OEM casting temperature switch (Q90, 36T26-42930, 300°F) used in Lennox HVAC systems to monitor and regulate heat exchanger casting temperatures, shutting down the system when unsafe temperature thresholds are reached. Symptoms of a failed casting temp switch include the unit failing to start, intermittent shutdowns, or overheating-related fault codes on your Lennox system. This direct OEM replacement ensures accurate temperature sensing and reliable protection for your Lennox heating equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081026290035,"sku":"LNX-74N45","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-switch-casting-temp-q90-36t26-42930-300-74n45","provider":"National HVAC Parts","version":"1.0","type":"link"}