{"product_id":"oem-goodman-primary-limit-temperature-control-for-gch950453bxab-20162904","title":"OEM Goodman Primary Limit Temperature Control for GCH950453BXAB — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM safety device for the Goodman \u003cstrong\u003eGCH950453BXAB\u003c\/strong\u003e gas furnace and compatible models. Mounted on the heat-exchanger assembly, the primary limit continuously senses supply-air temperature and shuts off the burners if the furnace exceeds its safe operating range — typically caused by restricted airflow, a dirty filter, or blower failure. It is the furnace's front-line overheat protection.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary limit \/ temperature control switch\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman\u003c\/li\u003e\n\u003cli\u003eFunction: Automatic overheat shutoff\u003c\/li\u003e\n\u003cli\u003eFits: GCH950453BXAB and compatible Goodman furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe primary limit is calibrated to a precise cut-out temperature matched to this furnace's heat exchanger. The factory Goodman control guarantees that setpoint. Generic replacements may open at the wrong temperature, causing nuisance lockouts or leaving the heat exchanger unprotected — a genuine safety risk. Stick with OEM for limit controls.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Moderate (3\/5).\u003c\/strong\u003e Involves removing the burner\/blower access panel, disconnecting two leads, and unscrewing the mounting bracket — about 30–45 minutes. Always shut off power and gas. If the limit was tripping, diagnose airflow before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058059002227,"sku":"GOODMAN-9828","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-gch950453bxab-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}