{"product_id":"oem-goodman-primary-limit-temperature-control-for-gmh950453bxac-20162904","title":"OEM Goodman Primary Limit Temperature Control for GMH950453BXAC — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch for the \u003cstrong\u003eGMH950453BXAC\u003c\/strong\u003e furnace and compatible Goodman\/Amana units. This normally-closed thermal switch monitors heat-exchanger temperature and shuts off the burners if the furnace overheats — protecting against cracked heat exchangers, blocked airflow, and fire hazards. If your furnace short-cycles on heat or won't fire, a failed primary limit is a common cause.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Type: Primary High-Limit Temperature Control\u003c\/li\u003e\n\u003cli\u003eFunction: Automatic-reset thermal safety switch\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMH950453BXAC and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed, factory-calibrated trip point\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM 20162904 is calibrated to the exact trip temperature your furnace's heat exchanger requires. Generic limit switches with mismatched set points can nuisance-trip or, worse, fail to protect the unit. As a safety-critical component, the OEM part is the recommended choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — mounts to the heat-exchanger bulkhead with two screws and two spade terminals. Cut power at the breaker before servicing. A typical replacement takes 15–20 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058111365491,"sku":"GOODMAN-11111","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-gmh950453bxac-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}