{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-gmt115-5b-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for GMT115-5B — B1370155","description":"\u003ch2\u003eGoodman B1370155 Auxiliary Limit Switch — 120°F\u003c\/h2\u003e\u003cp\u003eThe Goodman B1370155 is a genuine OEM auxiliary limit switch with a \u003cstrong\u003e120°F\u003c\/strong\u003e trip point, built for the \u003cstrong\u003eGoodman GMT115-5B\u003c\/strong\u003e gas furnace. Typically located on the blower housing, this switch protects against overheating in the blower compartment — often caused by a dirty filter, blocked return, or blower failure — by cutting the heat call when temperatures climb too high.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: B1370155\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 120°F\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary limit switch (typically auto-reset)\u003c\/li\u003e\n\u003cli\u003eFunction: Blower-compartment overheat protection\u003c\/li\u003e\n\u003cli\u003eCompatible Model: GMT115-5B\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine OEM Goodman\u003c\/strong\u003e switch guarantees the correct 120°F trip temperature and factory terminal fit. As a safety limit, matching the exact trip point matters — a generic substitute rated at a different temperature can cause short cycling or fail to protect the equipment. We recommend OEM for all limit controls.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, locate the switch on the blower housing, unplug the leads, remove the mounting screws, and fit the replacement. About a 10-minute repair. If the switch tripped, also check the filter and airflow before returning the furnace to service.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eAlways disconnect power before servicing. When in doubt, consult a licensed HVAC professional.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058161697139,"sku":"GOODMAN-12443","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-gmt115-5b-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}