{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-dms80905cna-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for DMS80905CNA — B1370155","description":"\u003ch2\u003eGoodman B1370155 Auxiliary Limit Switch (120°F)\u003c\/h2\u003e\u003cp\u003eThis genuine OEM Goodman B1370155 auxiliary limit switch is a 120°F automatic-reset safety control for the Goodman \u003cstrong\u003eDMS80905CNA\u003c\/strong\u003e gas furnace and many compatible Goodman\/Amana models. Typically mounted in the blower compartment, it senses excessive temperature caused by restricted return airflow, a dirty filter, or blower failure and interrupts the heating circuit until conditions return to normal — preventing damage to the blower housing and surrounding components.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 120°F\u003c\/li\u003e\n\u003cli\u003eType: automatic-reset auxiliary limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: blower-compartment overheat protection\u003c\/li\u003e\n\u003cli\u003eFits: Goodman DMS80905CNA 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 OEM B1370155 uses the precise 120°F setpoint and bracket geometry Goodman designed for this cabinet. Generic substitutes with different trip temperatures or mounting profiles can cause short-cycling or fail to protect the blower. For a safety-critical control, the genuine OEM switch is the reliable choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — about 15 minutes. Turn off power at the furnace, remove the blower-access panel, disconnect the wiring terminals, remove the mounting screws, and fit the new switch in the identical position. If the auxiliary limit keeps tripping, check the air filter and blower operation, and have a licensed HVAC technician verify airflow before restoring service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058048057715,"sku":"GOODMAN-9612","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-dms80905cna-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}