{"product_id":"oem-goodman-0-35-wc-no-pressure-switch-for-gmpv075-1-5-furnace-b1370133","title":"OEM Goodman -0.35\" WC NO Pressure Switch for GMPV075-1.5 Furnace — B1370133","description":"\u003ch2\u003eGoodman B1370133 Air Pressure Switch (-0.35\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe Goodman B1370133 is a factory-original air proving pressure switch engineered for the \u003cstrong\u003eGMPV075-1.5\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This safety control confirms proper induced-draft airflow before the ignition sequence begins, protecting your system from unsafe combustion conditions. When the inducer establishes negative pressure, the switch closes and allows the furnace control board to proceed; if venting is blocked or the inducer fails, it locks out ignition.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Point:\u003c\/strong\u003e -0.35\" water column (WC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Type:\u003c\/strong\u003e Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Induced-draft \/ vent airflow proving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMPV075-1.5 and select GMP\/GMPV series furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003egenuine OEM Goodman\u003c\/strong\u003e part built to the exact -0.35\" WC calibration your furnace's control logic expects. Generic universal switches often carry loose pressure tolerances that cause nuisance lockouts or fail to protect against blocked-vent conditions. For a critical combustion-safety component, OEM calibration accuracy is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5)\u003c\/strong\u003e — Two spade terminals and a single rubber vent hose. Cut power at the breaker, photograph the wiring, transfer the hose and leads to the new switch, and remount. Typically a 10–15 minute repair for a handy homeowner or any HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058150785395,"sku":"GOODMAN-12120","price":25.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-35-wc-no-pressure-switch-for-gmpv075-1-5-furnace-b1370133","provider":"National HVAC Parts","version":"1.0","type":"link"}