{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gch950905dxac-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GCH950905DXAC — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM temperature safety control rated at \u003cstrong\u003e150°F\u003c\/strong\u003e for \u003cstrong\u003eGCH950905DXAC\u003c\/strong\u003e gas furnaces and compatible Goodman\/Amana models. Mounted on the heat exchanger or blower deck, the primary limit monitors supply-air temperature and opens the circuit if the furnace overheats — commonly from a dirty filter, closed vents, or a failing blower — protecting the heat exchanger from damage. This auto-reset switch closes again once temperatures return to normal.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary auto-reset limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F cutout\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eEquipment: Gas Furnace\u003c\/li\u003e\n\u003cli\u003eFits: GCH950905DXAC and related Goodman 95% AFUE furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 20162903\u003c\/strong\u003e is calibrated to the exact 150°F trip point and bracket geometry this furnace requires. Generic limits with approximate temperatures or the wrong mounting profile can cause nuisance short-cycling or fail to protect the heat exchanger. For safety controls, genuine OEM is the recommended choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy (2\/5)\u003c\/strong\u003e. Disconnect the two spade terminals, remove the mounting screws, and install the replacement in the same orientation — about 15 minutes. Always cut power and gas first. If the limit keeps tripping, replace your filter and check airflow before assuming the switch is faulty.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058066899315,"sku":"GOODMAN-10039","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gch950905dxac-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}