{"product_id":"oem-goodman-150f-primary-limit-switch-for-ameh800805cnab-20162903","title":"OEM Goodman 150F Primary Limit Switch for AMEH800805CNAB — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e is a genuine OEM primary high-limit switch rated at \u003cstrong\u003e150°F\u003c\/strong\u003e, designed as a direct-fit replacement for the \u003cstrong\u003eAMEH800805CNAB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This normally-closed thermal safety device continuously monitors plenum temperature and cuts power to the burners if the furnace overheats — a critical protection against heat-exchanger damage and fire.\u003c\/p\u003e\u003cp\u003eA failed or nuisance-tripping limit switch is a common cause of short-cycling, no-heat calls, and repeated ignition lockouts. Replacing it with the correct OEM part restores reliable, code-compliant overheat protection.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: 20162903\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit \/ temperature cutoff\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eContacts: Normally closed, auto-reset\u003c\/li\u003e\n\u003cli\u003eFit: Goodman\/Amana AMEH800805CNAB and compatible furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM\u003c\/strong\u003e switch is factory-calibrated to the exact 150°F trip point and mounting footprint specified for your furnace. Generic universal limits often carry different trip temperatures or bracket dimensions, which can cause premature tripping or unsafe delayed shutoff. Because this is a life-safety component, we strongly recommend the OEM replacement.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate.\u003c\/strong\u003e The switch is typically secured by two screws with quarter-inch spade terminals. Always disconnect power at the breaker before servicing. A DIY-capable owner can swap it, but any recurring limit trips indicate a deeper airflow or heat-exchanger issue that a technician should diagnose.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057583931763,"sku":"GOODMAN-4436","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150f-primary-limit-switch-for-ameh800805cnab-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}