{"product_id":"oem-goodman-300-f-rollout-limit-switch-ams80903bnaa-b1370145","title":"OEM Goodman 300°F Rollout Limit Switch AMS80903BNAA — B1370145","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370145 Rollout Limit Switch\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003e300°F manual-reset flame rollout safety switch\u003c\/strong\u003e for the \u003cstrong\u003eAMS80903BNAA\u003c\/strong\u003e 80% AFUE furnace. Mounted near the burner assembly, it senses flame rollout caused by a blocked heat exchanger or restricted venting and shuts off the gas valve to prevent fire and cabinet damage. This is a critical safety component — never bypass it.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: B1370145\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eType: Manual-reset flame rollout limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: Normally-closed, opens on overtemp\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman \u0026amp; Amana AMS80903BNAA furnaces\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eSafety switches must trip at the exact rated temperature. Generic switches can drift out of spec, tripping early (nuisance no-heat) or dangerously late. This \u003cstrong\u003egenuine Goodman OEM 300°F switch\u003c\/strong\u003e is calibrated to the furnace's design and preserves both safety certification and warranty.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy — 1 of 5.\u003c\/strong\u003e Remove two screws, transfer the spade wire terminals, and mount the new switch. Always cut power and gas first. \u003cstrong\u003eImportant:\u003c\/strong\u003e a switch that keeps tripping signals an underlying problem (blocked flue, cracked heat exchanger) — diagnose the cause; do not simply reset it.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057704911219,"sku":"GOODMAN-7043","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-rollout-limit-switch-ams80903bnaa-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}