{"product_id":"oem-goodman-240f-primary-limit-switch-for-gmpv100-5-1370903s","title":"OEM Goodman 240F Primary Limit Switch for GMPV100-5 — 1370903S","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 1370903S Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety control for \u003cstrong\u003eGMPV100-5\u003c\/strong\u003e gas furnaces. Rated to open at \u003cstrong\u003e240°F\u003c\/strong\u003e with a \u003cstrong\u003e3-inch insertion depth\u003c\/strong\u003e, it monitors supply-plenum temperature and shuts off the burners if airflow is restricted—protecting the heat exchanger from overheating and cracking. A failed-open limit is a frequent cause of no-heat and blower-runs-but-no-flame complaints.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 1370903S\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 240°F (open on rise)\u003c\/li\u003e\n\u003cli\u003eInsertion Depth: 3 inches\u003c\/li\u003e\n\u003cli\u003eType: Automatic-reset primary high limit\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman GMPV100-5 furnace (verify by OEM part number)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are calibrated safety devices—the \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e part guarantees the exact 240°F set point and 3-inch probe length the furnace was engineered around. A generic switch with the wrong trip point or depth can nuisance-trip or, worse, fail to protect the heat exchanger. Always match the factory rating.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy\u003c\/strong\u003e. Turn off power and gas, remove the two mounting screws, transfer the wire leads, and secure the new switch to the plenum. Verify the probe seats fully. Roughly a 15-minute replacement.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058151604595,"sku":"GOODMAN-12157","price":29.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-240f-primary-limit-switch-for-gmpv100-5-1370903s","provider":"National HVAC Parts","version":"1.0","type":"link"}