{"product_id":"oem-goodman-150-f-primary-limit-switch-for-amvc80603bxbd-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMVC80603BXBD — 20162903","description":"\u003cp\u003eThe genuine OEM Goodman \u003cstrong\u003e20162903 Primary Limit Switch\u003c\/strong\u003e is a \u003cstrong\u003e150°F\u003c\/strong\u003e high-limit safety control for the Amana\/Goodman \u003cstrong\u003eAMVC80603BXBD\u003c\/strong\u003e 80% AFUE gas furnace. Mounted on the heat exchanger \/ blower deck, this normally-closed switch opens if supply-air temperature exceeds its set point — shutting down the burners to prevent heat-exchanger damage from restricted airflow, a dirty filter, or a failed blower. When temperatures return to normal it automatically resets, so no manual intervention is needed for a routine trip.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet point:\u003c\/strong\u003e Opens at ~150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Normally-closed primary high limit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e 1\/4\" quick-connect spade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman \u0026amp; Amana 80% AFUE furnaces, incl. AMVC80603BXBD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart:\u003c\/strong\u003e OEM 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e Primary limits are set-point specific. The genuine 20162903 carries the exact 150°F rating and bracket dimensions Goodman specifies for this platform. Substituting a limit with a different open temperature or L-length can cause nuisance lockouts or, worse, fail to protect the heat exchanger. OEM is strongly recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Easy (10–15 min). Disconnect power, note wire positions, remove the two mounting screws, and install the replacement in the identical location and orientation. If the new limit keeps tripping, check the filter, blower speed, and ductwork for airflow restriction before assuming a bad part.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057857315187,"sku":"GOODMAN-20162903","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-amvc80603bxbd-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}