{"product_id":"oem-goodman-amana-primary-limit-switch-150f-for-amss920805cnaa-20162903","title":"OEM Goodman Amana Primary Limit Switch 150F for AMSS920805CNAA — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eGenuine OEM Goodman\/Amana 20162903 primary high-limit switch with a 150°F trip point, the main over-temperature safety control on the \u003cstrong\u003eAMSS920805CNAA\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger\/supply-air path, this normally-closed snap-disc switch opens the control circuit and shuts down the burners if supply temperatures climb too high — typically from a dirty filter, blocked ductwork, or blower failure — then auto-resets once the furnace cools.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit snap-disc switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAction:\u003c\/strong\u003e Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e AMSS920805CNAA (Furnace)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman \/ Amana OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM 20162903 is factory-set to the precise 150°F trip point and disc diameter this furnace requires. A mismatched generic switch can cause repeated nuisance shutdowns or fail to protect the heat exchanger. For the primary safety limit, the genuine calibrated part is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5)\u003c\/strong\u003e — Disconnect power, remove the mounting screws, and swap the two spade terminals. 10–15 minutes; confirm the 150°F rating stamped on the disc matches the original before installing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057778344307,"sku":"GOODMAN-7469","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-amana-primary-limit-switch-150f-for-amss920805cnaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}