{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gch950904cxac-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GCH950904CXAC — 20162903","description":"\u003cp\u003eThe genuine Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e primary limit switch is a 150°F-rated OEM high-limit safety control for the \u003cstrong\u003eGCH950904CXAC\u003c\/strong\u003e gas furnace and related Goodman\/Amana 95% AFUE units. Mounted on the heat-exchanger bulkhead, this primary limit continuously monitors supply-air temperature and opens the burner control circuit if the furnace overheats — the front-line protection against a failed blower, dirty filter, or restricted airflow.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit thermal switch\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 150°F (auto reset)\u003c\/li\u003e\n\u003cli\u003eContacts: Normally closed, opens on overtemperature\u003c\/li\u003e\n\u003cli\u003eFunction: Primary overheat safety cutout\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GCH950904CXAC furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe 150°F trip point on this Goodman OEM switch is matched to your furnace's heat-exchanger design. A generic limit with a different rating can trip early (short cycling and no heat) or too late (allowing an unsafe overheat). Because this is a primary safety device, the OEM part is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Easy to Moderate.\u003c\/strong\u003e Disconnect furnace power, photograph the wiring, remove the two mounting screws, transfer the leads to the new limit, and reinstall on the same bracket. Allow 20–30 minutes. If the new limit trips, check filter and blower — repeated trips point to an airflow problem, not the switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057146085747,"sku":"GOODMAN-20162903","price":26.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gch950904cxac-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}