{"product_id":"oem-goodman-manual-reset-rollout-limit-switch-300f-for-gmth070-4b-b1370145","title":"OEM Goodman Manual Reset Rollout Limit Switch 300F for GMTH070-4B — B1370145","description":"\u003cp\u003eThe genuine Goodman \u003cstrong\u003eB1370145 Flame Rollout Switch\u003c\/strong\u003e is the OEM 300°F manual-reset safety limit that protects your Goodman \u003cstrong\u003eGMTH070-4B\u003c\/strong\u003e gas furnace from dangerous flame rollout. If flames escape the heat-exchanger burner box — often due to a blocked flue, cracked heat exchanger, or restricted venting — this switch trips and shuts off the gas valve, preventing overheating and fire hazards.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1370145\u003c\/li\u003e\n\u003cli\u003eType: Flame rollout limit switch\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eReset: Manual push-button reset\u003c\/li\u003e\n\u003cli\u003eContacts: Normally closed (opens on overtemp)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMTH070-4B and compatible furnace models\u003c\/li\u003e\n\u003cli\u003eFunction: Burner-box overtemperature safety cutout\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eRollout switches are a life-safety component, and the trip temperature and mounting location are model-specific. The genuine Goodman OEM B1370145 guarantees the correct 300°F rating and bracket fit. Because a mismatched switch can either nuisance-trip or fail to protect, we strongly recommend OEM for all safety limits — never bypass or jumper this device.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Mounts with one or two screws and two spade terminals. Shut off power and gas first. Estimated time: 10–15 minutes. Important: if the switch tripped, diagnose and correct the root cause (venting, heat exchanger) before returning the furnace to service — call a licensed technician if you are unsure.\u003c\/p\u003e\u003cp\u003eGenuine Goodman quality for essential furnace safety.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058166350195,"sku":"GOODMAN-12554","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-manual-reset-rollout-limit-switch-300f-for-gmth070-4b-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}