{"product_id":"oem-goodman-150-f-primary-limit-switch-for-amh80805cxbb-furnace-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMH80805CXBB Furnace — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe 20162903 is a genuine OEM primary high-limit switch rated at a \u003cstrong\u003e150°F\u003c\/strong\u003e trip point for the Goodman\/Amana \u003cstrong\u003eAMH80805CXBB\u003c\/strong\u003e gas furnace. Mounted on the heat-exchanger\/plenum panel, it continuously senses supply-air temperature and shuts off the gas valve if the furnace overheats — typically from a dirty filter, blower failure, or restricted ductwork. A failed limit switch causes short-cycling, no-heat calls, or unsafe over-temperature operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Primary high-limit (temperature) switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (recloses on cooldown)\u003c\/li\u003e\n\u003cli\u003eContacts: Normally closed, opens on overtemperature\u003c\/li\u003e\n\u003cli\u003eOEM part number: 20162903\u003c\/li\u003e\n\u003cli\u003eCompatible model: AMH80805CXBB (Goodman \u0026amp; Amana equivalent)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM 20162903 ships with Goodman's exact 150°F calibration and mounting footprint, so it drops in and protects at the designed setpoint. Generic limits with a different trip temperature or bracket can cause chronic nuisance shutdowns or, worse, fail to protect the heat exchanger. On a primary safety control, matching the factory rating is essential.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Power off the furnace, disconnect the two wire terminals, remove the mounting screws, and install the new switch in the same orientation. Before restoring heat, replace the air filter and confirm proper blower airflow so the new limit isn't tripped by the underlying cause.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057627349363,"sku":"GOODMAN-5663","price":27.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-amh80805cxbb-furnace-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}