{"product_id":"oem-goodman-150-f-primary-high-limit-switch-for-amvc80704bxab-20162903","title":"OEM Goodman 150°F Primary High Limit Switch for AMVC80704BXAB — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003e150°F\u003c\/strong\u003e high-limit safety control for the \u003cstrong\u003eAMVC80704BXAB\u003c\/strong\u003e variable-speed 80% AFUE furnace. Installed on the heat exchanger or plenum, this automatic-reset switch monitors supply-air temperature and shuts off the burners if the furnace overheats — typically caused by restricted airflow, a dirty filter, or a failing blower. It protects the heat exchanger from cracking and prevents unsafe operating temperatures.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit switch, automatic reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip point:\u003c\/strong\u003e 150°F open on rise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Shuts off burners on plenum overheat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman \/ Amana AMVC80704BXAB furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The exact trip temperature and bracket dimensions matter for a limit switch. The Goodman OEM 20162903 is calibrated to 150°F and drops directly into the factory location. Generic replacements with even a slightly different set point can cause short-cycling or fail to protect the heat exchanger. For proper furnace protection, choose the OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Easy (1\/5). Two spade terminals and two mounting screws. Cut power to the furnace first, and always confirm airflow issues (filter, blower, ductwork) are resolved — a tripping limit switch is usually a symptom, not the root cause.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057862230387,"sku":"GOODMAN-8232","price":21.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-high-limit-switch-for-amvc80704bxab-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}