{"product_id":"oem-goodman-150-f-primary-limit-switch-for-wgfm195070s3bad-20162903","title":"OEM Goodman 150°F Primary Limit Switch for WGFM195070S3BAD — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety control for the \u003cstrong\u003eWGFM195070S3BAD\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger bulkhead, this normally-closed thermal switch opens at approximately \u003cstrong\u003e150°F\u003c\/strong\u003e to shut off the gas valve if airflow is lost or the furnace overheats — preventing heat-exchanger damage and unsafe operating temperatures. A furnace that short-cycles on heat, trips out mid-cycle, or won't fire often has an open or fatigued primary limit.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n  \u003cli\u003eType: Primary high-limit switch (auto-reset)\u003c\/li\u003e\n  \u003cli\u003eOpen Temperature: ~150°F\u003c\/li\u003e\n  \u003cli\u003eContacts: Normally closed\u003c\/li\u003e\n  \u003cli\u003eFunction: Overheat \/ loss-of-airflow safety shutoff\u003c\/li\u003e\n  \u003cli\u003eFits: Goodman WGFM195070S3BAD furnace\u003c\/li\u003e\n  \u003cli\u003eBrand: Goodman (Amana \/ Daikin family compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eOEM\u003c\/strong\u003e limit is calibrated to the exact 150°F trip point and mounting footprint your furnace's safety circuit was designed around. \u003cstrong\u003eGeneric\u003c\/strong\u003e universal limits require matching temperature and bracket dimensions and can trip early or late if mismatched. For a safety-critical control, we strongly recommend the OEM switch.\u003c\/p\u003e\n\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEasy (2 \/ 5).\u003c\/strong\u003e Disconnect power, unplug the two spade terminals, remove two mounting screws, and install the replacement in the same orientation. Confirm the furnace completes a full heat cycle afterward. About 15 minutes for most techs.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058236146035,"sku":"GOODMAN-14317","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-wgfm195070s3bad-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}