{"product_id":"oem-goodman-170-f-primary-limit-switch-for-ams80704bxa-b1370188","title":"OEM Goodman 170°F Primary Limit Switch for AMS80704BXA — B1370188","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370188\u003c\/strong\u003e is a genuine OEM primary high-limit switch rated at \u003cstrong\u003e170°F\u003c\/strong\u003e, designed for the \u003cstrong\u003eAMS80704BXA\u003c\/strong\u003e gas furnace and compatible Goodman and Amana models. Positioned in the heat exchanger air stream, this auto-reset switch is the furnace's main overheat safety: it shuts off the gas burners if supply-air temperature climbs too high, protecting the heat exchanger from cracking and preventing dangerous overheating during low-airflow conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip temperature:\u003c\/strong\u003e 170°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset type:\u003c\/strong\u003e Automatic (self-resetting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Primary high-limit \/ heat exchanger overheat protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e AMS80704BXA and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e B1370188\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The genuine B1370188 is factory-calibrated to the exact 170°F setpoint and insertion depth this furnace requires. A generic switch with the wrong trip temperature or probe length can allow the heat exchanger to overheat or cause repeated nuisance shutdowns. Because this is the primary safety limit, we recommend the OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Moderate. The switch typically mounts to the heat exchanger panel with two screws and connects with spade terminals. Confirm proper airflow (clean filter, open registers, correct blower speed) before and after replacement, since low airflow is the most common cause of high-limit trips. Disconnect power before servicing; when in doubt, use a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057691410803,"sku":"GOODMAN-6933","price":27.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-170-f-primary-limit-switch-for-ams80704bxa-b1370188","provider":"National HVAC Parts","version":"1.0","type":"link"}