{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gmh951155dxae-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GMH951155DXAE — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eProtect your Goodman \u003cstrong\u003eGMH951155DXAE\u003c\/strong\u003e furnace from overheating with this genuine OEM primary high-limit switch, factory-calibrated to a 150°F trip point. Mounted on the heat exchanger or plenum, the primary limit continuously monitors supply-air temperature. If airflow is lost — from a dirty filter, failed blower, or closed dampers — the switch opens the gas valve circuit to prevent dangerous heat buildup, then automatically resets once temperatures return to normal.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit switch, auto-reset\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 150°F (factory-calibrated)\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eFunction: High-temperature airflow safety cutout\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMH951155DXAE and compatible 95% furnaces\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe 150°F setpoint on the OEM 20162903 is matched to this furnace's heat-exchanger design and blower table. A generic limit with a different trip temperature or bimetal tolerance can cause repeated short-cycling on limit or, more dangerously, allow the unit to run hotter than designed. For a primary safety control, insist on the genuine OEM part with the correct rating.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — About 10–15 minutes. Turn off power, disconnect the two spade terminals, remove the mounting screws, seat the new limit against the same surface, and reconnect. No special tools. If the old limit was tripping, correct the underlying airflow restriction (filter, blower, ductwork) before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058124931443,"sku":"GOODMAN-11523","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gmh951155dxae-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}