{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ames960403buaa-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMES960403BUAA — 20162903","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control with a \u003cstrong\u003e150°F cutout\u003c\/strong\u003e temperature, designed for the Amana\/Goodman \u003cstrong\u003eAMES960403BUAA\u003c\/strong\u003e gas furnace. This normally-closed switch monitors heat-exchanger and plenum temperature and opens to shut off the gas valve if the furnace overheats — a critical safety device that prevents heat-exchanger damage and fire hazards. A failed limit switch is a common cause of furnaces that shut down mid-cycle, short-cycle, or won't fire at all.\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 switch (auto-reset, normally closed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutout Temperature:\u003c\/strong\u003e 150°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman \u0026amp; Amana AMES960403BUAA furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Overheat safety shutoff\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (Daikin family — Amana compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The 20162903 is calibrated to the exact 150°F trip point and mounting pattern this furnace requires. Generic limit switches with different set points or bracket geometry can cause nuisance trips or fail to protect the heat exchanger. Because this is a safety component, we strongly recommend the OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty:\u003c\/strong\u003e Moderate. Requires disconnecting power, removing the burner\/control panel, transferring the wire leads, and mounting the new switch in the same location. Basic electrical and HVAC knowledge recommended — roughly 20–30 minutes.\u003c\/p\u003e\u003cp\u003eAlways disconnect power and shut off gas before servicing. Safety controls should be replaced by a qualified technician when in doubt.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057595924851,"sku":"GOODMAN-4797","price":34.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ames960403buaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}