{"product_id":"oem-goodman-120f-auxiliary-limit-switch-for-gmt140-5bb-b1370155","title":"OEM Goodman 120F Auxiliary Limit Switch for GMT140-5BB — B1370155","description":"\u003ch2\u003eGoodman B1370155 120°F Auxiliary Limit Switch\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1370155\u003c\/strong\u003e is a genuine OEM Goodman auxiliary limit switch built for the \u003cstrong\u003eGMT140-5BB\u003c\/strong\u003e gas furnace and related Goodman\/Amana equipment. Mounted near the blower compartment, this secondary high-limit control opens at \u003cstrong\u003e120°F\u003c\/strong\u003e to protect the furnace from overheating if airflow is restricted by a dirty filter, blocked return, or blower fault.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 120°F\u003c\/li\u003e\n\u003cli\u003eFunction: Auxiliary \/ secondary high-limit protection\u003c\/li\u003e\n\u003cli\u003eType: Normally closed, auto-reset bimetal\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMT140-5BB and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370155\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman part matches the factory 120°F calibration and the exact bracket footprint used in the GMT140 cabinet. Aftermarket equivalents often ship with a nearby-but-not-identical trip point, which can cause premature cycling or fail to protect the blower housing. For dependable overheat protection, choose OEM.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eThis is a quick swap — disconnect the two wire leads, remove the mounting screws, and reverse to install the replacement. Most DIYers finish in 10–15 minutes. Cut power at the breaker before opening the blower door.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057148445043,"sku":"GOODMAN-B1370155","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120f-auxiliary-limit-switch-for-gmt140-5bb-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}