{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-gmth090-5b-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for GMTH090-5B — B1370155","description":"\u003ch2\u003eGoodman B1370155 Auxiliary Limit Switch — 120°F\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1370155 auxiliary limit switch\u003c\/strong\u003e is a genuine OEM secondary overheat control rated at \u003cstrong\u003e120°F\u003c\/strong\u003e for the \u003cstrong\u003eGMTH090-5B\u003c\/strong\u003e gas furnace. Typically mounted on the blower housing, this auxiliary limit provides backup protection against heat buildup in the blower compartment — for example when airflow is restricted or the primary limit is slow to respond — by opening the control circuit to stop the burner.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: B1370155 (OEM Goodman)\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary \/ secondary limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 120°F\u003c\/li\u003e\n\u003cli\u003eFunction: Normally closed, opens on overheat\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMTH090-5B gas furnace\u003c\/li\u003e\n\u003cli\u003eEquipment: Gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B1370155\u003c\/strong\u003e matches the 120°F setpoint and blower-mount geometry Goodman designed for this model. Generic auxiliary limits with different trip points can cause intermittent no-heat calls that are difficult to diagnose. For consistent, correct protection, OEM is the recommended fit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy\u003c\/strong\u003e — disconnect two leads, remove one or two screws, and swap. Shut off power at the disconnect before servicing. Confirm the blower and filter airflow are clear so the new switch isn't tripped by a real airflow problem.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057148707187,"sku":"GOODMAN-B1370155","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-gmth090-5b-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}