{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-gmnt100-4b-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for GMNT100-4B — B1370155","description":"\u003ch2\u003eOEM Goodman B1370155 Auxiliary Limit Switch (120°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman B1370155 is a genuine OEM \u003cstrong\u003e120°F auxiliary high-limit switch\u003c\/strong\u003e for \u003cstrong\u003eGMNT100-4B\u003c\/strong\u003e gas furnaces. Typically mounted near the blower compartment, this auxiliary limit provides secondary over-temperature protection, opening the control circuit and stopping the burners if temperatures in the cabinet exceed safe levels — for example, during blower failure or severe airflow restriction. It backs up the primary limit for an added layer of safety.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 120°F\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary\/secondary high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eContacts: Normally closed, opens on over-temp\u003c\/li\u003e\n\u003cli\u003eReset: Auto-reset on cool-down (verify vs. original)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMNT100-4B and compatible Amana 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 120°F set point and bracket are model-specific. The OEM B1370155 ensures the correct calibration and fit so the auxiliary limit protects as designed. Generic limits with different set points can cause nuisance lockouts or inadequate protection. For a safety control, choose OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Shut off power, remove the two spade terminals and mounting screws, and install the replacement in the same location and orientation. About 10 minutes. If it keeps tripping, correct the airflow or blower problem rather than defeating the switch.\u003c\/p\u003e\u003cp\u003eGenuine Goodman\/Amana OEM safety part for the GMNT100-4B series.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058131091827,"sku":"GOODMAN-11729","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-gmnt100-4b-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}