{"product_id":"oem-goodman-150-f-primary-limit-switch-for-wfm18140s5dncc-20162903","title":"OEM Goodman 150°F Primary Limit Switch for WFM18140S5DNCC — 20162903","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e is a genuine OEM primary high-limit switch with a 150°F trip point, built for the \u003cstrong\u003eWFM18140S5DNCC\u003c\/strong\u003e furnace. Mounted on the heat-exchanger\/blower deck, this normally-closed thermal switch monitors supply-air temperature and opens the control circuit to shut off the burners if the furnace overheats — typically from restricted airflow such as a clogged filter or failed blower. A failed or drifting limit switch causes nuisance shutdowns or, worse, allows dangerous over-temp conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F (opens on rise)\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed, automatic reset\u003c\/li\u003e\n\u003cli\u003eFunction: Over-temperature burner cutout\u003c\/li\u003e\n\u003cli\u003eFits: Goodman WFM18140S5DNCC and compatible models\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM\u003c\/strong\u003e limit switch is calibrated to the precise 150°F trip point and disc geometry the furnace requires — essential for a safety control. A \u003cstrong\u003egeneric\u003c\/strong\u003e switch may match the rating at lower cost, but for any high-limit safety device we recommend OEM to guarantee the correct set point and reliable auto-reset behavior.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 5).\u003c\/strong\u003e Roughly 10 minutes. Disconnect power, pull the two spade terminals, remove the mounting screws, and seat the new switch flat against the panel in the same orientation. If the old switch was tripping, correct the airflow problem (dirty filter, blocked returns, weak blower) before restoring service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058230149491,"sku":"GOODMAN-14169","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-wfm18140s5dncc-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}