{"product_id":"oem-goodman-150-f-primary-limit-switch-for-amh951155dxad-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMH951155DXAD — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control rated to open at \u003cstrong\u003e150°F\u003c\/strong\u003e, used on the \u003cstrong\u003eAmana AMH951155DXAD\u003c\/strong\u003e 95%+ AFUE gas furnace. Mounted on the heat exchanger or blower deck, it monitors supply-air temperature and cuts power to the gas valve if the furnace overheats — protecting the heat exchanger from cracking and preventing a fire hazard.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 20162903\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 150°F (normally closed, opens on rise)\u003c\/li\u003e\n\u003cli\u003eReset: Automatic\u003c\/li\u003e\n\u003cli\u003eFunction: Overheat \/ high-limit safety cutout\u003c\/li\u003e\n\u003cli\u003eFits: Amana \/ Goodman AMH951155DXAD and compatible furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM\u003c\/strong\u003e 20162903 is calibrated to Goodman's exact 150°F trip point and uses the correct bracket geometry for a proper seat against the airstream. \u003cstrong\u003eGeneric\u003c\/strong\u003e limits with an approximate trip temperature can nuisance-trip (short cycling on heat) or, worse, fail to open at the design temperature — defeating the safety function. On a life-safety control, OEM calibration matters.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Power down the furnace, remove the two mounting screws, unplug the spade terminals, and install the replacement in the same orientation. A multimeter helps confirm continuity before and after. Typically a 15–20 minute job for a handy owner.\u003c\/p\u003e\u003cp\u003eIf your furnace is locking out on a repeated limit-open code, also check airflow, the filter, and blower operation. Need help? info@nationalhvacparts.com.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057681449331,"sku":"GOODMAN-6657","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-amh951155dxad-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}