{"product_id":"oem-goodman-160-f-primary-limit-switch-for-amh80703anab-b1370187","title":"OEM Goodman 160°F Primary Limit Switch for AMH80703ANAB — B1370187","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370187 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control that fits the \u003cstrong\u003eAMH80703ANAB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Mounted on the heat exchanger \/ plenum, this switch monitors supply-air temperature and opens the gas valve circuit if the furnace overheats — protecting the heat exchanger from cracking due to restricted airflow, a dirty filter, or a failed blower. A tripped or failed primary limit is one of the most frequent causes of no-heat and repeated furnace lockouts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 160°F (auto-reset high limit)\u003c\/li\u003e\n\u003cli\u003eFunction: Primary heat-exchanger overheat protection\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed (opens on temperature rise)\u003c\/li\u003e\n\u003cli\u003eMounting: OEM snap-disc with factory bracket footprint\u003c\/li\u003e\n\u003cli\u003eCompatibility: AMH80703ANAB and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B1370187\u003c\/strong\u003e is factory-calibrated to the precise 160°F set point specified for this furnace. Generic replacements often carry the wrong trip temperature or bracket geometry, leading to premature tripping, delayed protection, or improper mounting. Because this switch guards against a cracked heat exchanger, we strongly recommend the genuine OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5)\u003c\/strong\u003e — Power off at the disconnect, disconnect the two spade terminals, remove the two mounting screws, install the replacement, and reconnect. A 10–15 minute job with basic hand tools.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057610375539,"sku":"GOODMAN-5281","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-160-f-primary-limit-switch-for-amh80703anab-b1370187","provider":"National HVAC Parts","version":"1.0","type":"link"}