{"product_id":"oem-goodman-210-f-primary-limit-switch-for-amh80453axaa-b1370190","title":"OEM Goodman 210°F Primary Limit Switch for AMH80453AXAA — B1370190","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370190 Primary Limit Switch\u003c\/strong\u003e is the genuine OEM high-limit safety control for the Goodman\/Amana \u003cstrong\u003eAMH80453AXAA\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger or blower deck, this normally-closed switch opens at roughly 210°F to cut the gas valve if the furnace overheats — protecting the heat exchanger from cracking and preventing a fire hazard. When this switch fails, the furnace will typically lock out on a limit fault or refuse to maintain a heating cycle.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1370190\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary (high) limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 210°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e AMH80453AXAA (80% AFUE gas furnace)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman \/ Amana\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally closed, opens on rise\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGenuine OEM limit switches are calibrated to the furnace's specific airflow and heat-exchanger design. Generic replacements may carry a nominal 210°F rating but vary in trip tolerance, risking nuisance lockouts or delayed protection. For a primary safety limit, the OEM part is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e A two-wire, screw-mounted swap. Shut off power and gas, photograph the wiring, remove the two spade connectors, install the new switch, and reconnect. Roughly 10–15 minutes. Diagnose and correct any airflow restriction (dirty filter, blocked ducts) before replacing a tripped primary limit.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057602969971,"sku":"GOODMAN-5041","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-210-f-primary-limit-switch-for-amh80453axaa-b1370190","provider":"National HVAC Parts","version":"1.0","type":"link"}