{"product_id":"oem-goodman-primary-limit-switch-for-gms950453bxa-20162904","title":"OEM Goodman Primary Limit Switch for GMS950453BXA — 20162904","description":"\u003ch2\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20162904\u003c\/strong\u003e is a genuine OEM primary high-limit temperature control designed for Goodman GMS95 gas furnaces such as the \u003cstrong\u003eGMS950453BXA\u003c\/strong\u003e. This safety switch continuously monitors supply-air temperature over the heat exchanger and opens the gas circuit if the furnace overheats — protecting the heat exchanger from cracking and preventing a fire hazard when airflow is restricted by a dirty filter, failed blower, or blocked ducts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Primary high-limit switch (auto-reset)\u003c\/li\u003e\n\u003cli\u003eFunction: Opens gas valve circuit on over-temperature\u003c\/li\u003e\n\u003cli\u003eMounting: OEM bracket, direct furnace fit\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMS95 series, including GMS950453BXA\u003c\/li\u003e\n\u003cli\u003eOEM part number: 20162904\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 20162904\u003c\/strong\u003e is calibrated to the exact trip temperature specified for your furnace, ensuring reliable safety operation without nuisance shutdowns. Because this is a life-safety component, we strongly recommend the OEM part; our \u003cstrong\u003egeneric equivalent\u003c\/strong\u003e is offered only where the trip point and mounting are confirmed identical.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Shut off power and gas, remove the burner-compartment door, disconnect the two spade terminals, and unscrew the old limit. A 10–15 minute repair for a technician. Do not bypass or jumper a failed limit — replace it.\u003c\/p\u003e\u003cp\u003eVerify the temperature rating and bracket match your original before installing. Safety-related repairs should be performed by a qualified HVAC professional.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058152620403,"sku":"GOODMAN-12192","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-switch-for-gms950453bxa-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}