{"product_id":"oem-goodman-160-f-primary-limit-switch-for-dms80703ana-b1370187","title":"OEM Goodman 160°F Primary Limit Switch for DMS80703ANA — B1370187","description":"\u003ch2\u003eGoodman B1370187 Primary Limit Switch (160°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman B1370187 is a genuine OEM primary high-limit switch rated at 160°F, engineered for the DMS80703ANA gas furnace and compatible Goodman\/Amana models. Positioned on the heat exchanger bulkhead in the supply-air stream, this auto-reset control is the furnace's main overheat protection. If supply temperature exceeds the setpoint — commonly from a dirty filter, closed registers, or a weak blower — the limit opens the gas valve circuit to shut down the burners and prevent heat-exchanger damage, then resets automatically as the plenum cools.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 160°F (opens on rise)\u003c\/li\u003e\n\u003cli\u003eReset type: automatic\u003c\/li\u003e\n\u003cli\u003eFunction: primary high-limit \/ heat exchanger overheat protection\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4in quick-connect spade\u003c\/li\u003e\n\u003cli\u003eMounting: heat-exchanger bracket\u003c\/li\u003e\n\u003cli\u003eFits: Goodman DMS80703ANA and select 80% AFUE furnaces\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1370187\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eAs the primary limit, this switch must match the furnace's certified trip temperature and insertion depth exactly. A generic switch with the wrong setpoint or probe length can short-cycle the furnace or, worse, allow the heat exchanger to overheat. OEM is the recommended choice for the primary safety limit.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty: Moderate (3\/5)\u003c\/h3\u003e\u003cp\u003eKill power, photograph the wiring, remove the two screws holding the switch to the heat-exchanger panel, transfer the spade terminals, and remount squarely so the sensing element sits in the airstream. Fifteen to twenty minutes; correcting that airflow restriction is the real fix if it kept tripping.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058030199155,"sku":"GOODMAN-9578","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-160-f-primary-limit-switch-for-dms80703ana-b1370187","provider":"National HVAC Parts","version":"1.0","type":"link"}