{"product_id":"oem-goodman-primary-limit-switch-150f-for-amh81205dxbb-20162903","title":"OEM Goodman Primary Limit Switch 150F for AMH81205DXBB — 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 with a 150°F trip point, designed for the AMH81205DXBB gas furnace and compatible Goodman\/Amana models. Mounted on the heat-exchanger bulkhead, this temperature-sensing safety switch monitors supply-air temperature and opens the control circuit if the furnace overheats — typically from restricted airflow, a dirty filter, or blower failure. Correct operation of the primary limit is essential to protect the heat exchanger and prevent unsafe temperatures, so replace it only with the exact OEM-rated part.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F (auto reset)\u003c\/li\u003e\n\u003cli\u003eContacts: Normally closed (opens on overtemp)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman \u0026amp; Amana AMH81205DXBB gas furnaces\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman 20162903 is calibrated to the precise 150°F trip point and mounting-bracket geometry this furnace requires. A generic switch with a different trip temperature or footprint can cause nuisance shutdowns or fail to protect the heat exchanger. As a primary safety control, OEM is strongly recommended for correct, reliable protection.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate.\u003c\/strong\u003e Disconnect the two spade terminals, remove the mounting screws, and install the replacement in the same orientation — usually 10–15 minutes. If the new limit trips repeatedly, inspect airflow, filter, and blower operation before assuming a part fault. Shut off gas and power before servicing.\u003c\/p\u003e\u003cp\u003eNot sure which limit your furnace uses? Email info@nationalhvacparts.com for help.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057653694835,"sku":"GOODMAN-6114","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-switch-150f-for-amh81205dxbb-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}