{"product_id":"oem-goodman-150f-primary-limit-switch-for-amss960603bnaa-20162903","title":"OEM Goodman 150F Primary Limit Switch for AMSS960603BNAA — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit control rated for a \u003cstrong\u003e150°F\u003c\/strong\u003e trip point, built for the \u003cstrong\u003eGoodman\/Amana AMSS960603BNAA\u003c\/strong\u003e gas furnace. Mounted on the heat-exchanger bulkhead, this switch continuously senses supply-air temperature and opens the burner circuit if airflow is lost or the plenum overheats — protecting the heat exchanger from cracking and preventing unsafe operation. Unlike a manual-reset switch, the primary limit is \u003cem\u003eauto-resetting\u003c\/em\u003e: it closes again once temperatures return to normal, allowing the furnace to resume automatically.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Auto-reset primary high-limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 150°F (open on rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMSS960603BNAA gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit:\u003c\/strong\u003e Normally closed, auto-reset\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e Trip temperature and bracket geometry are model-specific. The OEM 20162903 is factory-calibrated to 150°F and mounts flush to the AMSS960603BNAA bulkhead. A generic switch with the wrong setpoint will cause short-cycling on limit or, dangerously, fail to protect the exchanger. For correct furnace behavior, choose the genuine Goodman part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty:\u003c\/strong\u003e ⭐⭐ Easy (2\/5) — cut power, note wire positions, remove two mounting screws, transfer the spade connectors, and reinstall. A multimeter confirms continuity at room temperature. Turn off the breaker before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057792008563,"sku":"GOODMAN-7532","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150f-primary-limit-switch-for-amss960603bnaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}