{"product_id":"oem-goodman-primary-limit-switch-for-wfd18045s3axcc-0130f00035","title":"OEM Goodman Primary Limit Switch for WFD18045S3AXCC — 0130F00035","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e0130F00035 Primary Limit Switch\u003c\/strong\u003e (purple-coded) is a genuine OEM high-temperature safety control for the \u003cstrong\u003eWFD18045S3AXCC\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Mounted on the heat-exchanger\/plenum area, the primary limit opens and cuts the gas valve if supply-air temperature climbs past its rated trip point — protecting the heat exchanger from overheating due to a dirty filter, blocked ductwork, or blower failure. A limit that trips early or won't reset causes intermittent no-heat and nuisance shutdowns.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0130F00035\u003c\/li\u003e\n\u003cli\u003eColor Code: Purple (temperature\/set-point identifier)\u003c\/li\u003e\n\u003cli\u003eCategory: Primary High-Limit Switch\u003c\/li\u003e\n\u003cli\u003eType: Auto-reset thermal cutout\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (fits Amana equivalents)\u003c\/li\u003e\n\u003cli\u003eEquipment Type: Gas Furnace\u003c\/li\u003e\n\u003cli\u003ePrimary Fit: WFD18045S3AXCC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine OEM Goodman\u003c\/strong\u003e switch is factory-calibrated to the exact trip temperature for this furnace, matched by its purple color code. Substituting a generic limit with the wrong set-point can cause premature tripping or, worse, fail to protect the heat exchanger. The color-matched OEM part guarantees correct calibration.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate (2.5\/5).\u003c\/strong\u003e About 20–30 minutes. Cut power at the disconnect, remove two mounting screws, transfer the wire leads to the identical terminals, and confirm the correct purple part number. Match color and part number exactly — do not guess on a safety control.\u003c\/p\u003e\u003cp\u003eGenuine OEM, in stock, with a fit guarantee for the WFD18045S3AXCC.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058214715763,"sku":"GOODMAN-13827","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-switch-for-wfd18045s3axcc-0130f00035","provider":"National HVAC Parts","version":"1.0","type":"link"}