{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ameh800805dnaa-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMEH800805DNAA — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162903 is a genuine OEM primary high-limit switch designed for the \u003cstrong\u003eAMEH800805DNAA\u003c\/strong\u003e furnace and compatible Goodman\/Amana gas furnaces. This safety-critical component continuously monitors heat-exchanger temperature and opens the circuit if the furnace exceeds its safe operating limit — shutting down the burners to prevent overheating, cracked heat exchangers, and fire hazards. A failed limit switch causes short-cycling, no-heat lockouts, or unsafe operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCutout temperature: 150°F (primary high-limit)\u003c\/li\u003e\n\u003cli\u003eType: Automatic-reset bimetal limit switch\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eFits: AMEH800805DNAA and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eFactory-calibrated trip point\u003c\/li\u003e\n\u003cli\u003eDirect plug-and-mount replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are life-safety devices, and trip temperature must be exact. Aftermarket switches may trip early (nuisance shutdowns) or late (dangerous overheating). This \u003cstrong\u003eOEM Goodman 20162903\u003c\/strong\u003e is calibrated to the precise 150°F setpoint the AMEH furnace was engineered around — the right call for any safety component.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate.\u003c\/strong\u003e Typically two mounting screws and a pair of push-on terminals. Cut power at the breaker first, note wire positions, and confirm the switch part number matches. Estimated time: 15–20 minutes.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eShut off electrical power before servicing. Never bypass a limit switch. If unsure, consult a licensed HVAC professional.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057585701235,"sku":"GOODMAN-4466","price":16.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ameh800805dnaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}