{"product_id":"oem-goodman-m4-primary-limit-switch-for-gks91155dxaf-20162906","title":"OEM Goodman M4 Primary Limit Switch for GKS91155DXAF — 20162906","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162906 M4 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM auto-reset thermal safety control for the \u003cstrong\u003eGKS91155DXAF\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger, this high-limit switch opens the control circuit if the furnace overheats — shutting off the burners to protect the heat exchanger and prevent unsafe operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e M4 primary high-limit switch (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 20162906\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Over-temperature safety cutout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount:\u003c\/strong\u003e Heat-exchanger \/ vestibule panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GKS91155DXAF and compatible Goodman furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are calibrated to a specific trip temperature for your furnace. A generic switch with the wrong setpoint can nuisance-trip (short-cycling, no heat) or fail to protect the heat exchanger. This genuine Goodman M4 switch trips at the factory-rated temperature for correct, safe protection.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5)\u003c\/strong\u003e — Two screws and a pair of push-on terminals. About 10–15 minutes with a nut driver. Cut power at the breaker before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058107171187,"sku":"GOODMAN-20162906","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-m4-primary-limit-switch-for-gks91155dxaf-20162906","provider":"National HVAC Parts","version":"1.0","type":"link"}