{"product_id":"oem-goodman-160-f-limit-switch-7-inch-for-gun100-4b-1370908s","title":"OEM Goodman 160°F Limit Switch 7-inch for GUN100-4B — 1370908S","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 1370908S Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control for the \u003cstrong\u003eGUN100-4B\u003c\/strong\u003e gas furnace and compatible GUN100 series units. This 160°F, 7-inch insertion-depth switch monitors the temperature in the heat exchanger \/ plenum and shuts off the burners if the furnace overheats — protecting the heat exchanger from cracking and preventing unsafe operation. A failed limit switch causes short-cycling, no-heat lockouts, or (if stuck closed) dangerous overheating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 1370908S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 160°F (auto-reset high-limit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion Length:\u003c\/strong\u003e 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Bimetal high-limit temperature switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GUN100-4B and GUN100 series furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003eGoodman OEM limit switch\u003c\/strong\u003e is matched to the exact trip temperature and probe length your furnace requires. A generic switch with the wrong length or set-point can nuisance-trip (short-cycling) or fail to protect the heat exchanger at the correct temperature. Because this is a safety control, the precise OEM specification matters — don't substitute a close-enough universal part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, remove the two mounting screws, unplug the two spade terminals, and slide the probe out. Install the replacement in the same orientation and depth. Verify normal cycling and confirm airflow is unrestricted before returning to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058189058419,"sku":"GOODMAN-13154","price":26.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-160-f-limit-switch-7-inch-for-gun100-4b-1370908s","provider":"National HVAC Parts","version":"1.0","type":"link"}