{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ames960403buab-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMES960403BUAB — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903\u003c\/strong\u003e is a genuine OEM primary high-limit switch rated at \u003cstrong\u003e150°F\u003c\/strong\u003e for the \u003cstrong\u003eAMES960403BUAB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This safety control is a normally-closed, temperature-sensing switch mounted on the heat exchanger or blower deck. If supply-air temperature exceeds its 150°F setpoint — typically from a dirty filter, blocked ductwork, or a failing blower — it opens, shutting off the burners to prevent overheating. A tripped or failed limit switch is a common cause of short-cycling and no-heat calls.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit safety switch (normally closed \/ auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip point:\u003c\/strong\u003e 150°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Cuts burner operation on over-temperature to protect the heat exchanger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Direct OEM replacement for AMES960403BUAB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman \/ Amana genuine part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this is a safety-critical control, the trip temperature and mounting bracket must match exactly. A generic switch with the wrong setpoint can allow overheating or cause nuisance trips. The genuine \u003cstrong\u003e20162903\u003c\/strong\u003e is calibrated to the factory 150°F setpoint with the correct bracket footprint, ensuring proper protection and reliable operation.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate.\u003c\/strong\u003e Requires disconnecting power, removing two mounting screws, and transferring the wire connectors to the new switch. Verify correct orientation and secure spade connections. Because this is a safety device, a licensed HVAC technician is recommended if you are unsure of diagnosis or wiring.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057596121459,"sku":"GOODMAN-4804","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ames960403buab-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}