{"product_id":"oem-goodman-0-50-wc-pressure-switch-for-gmv951155dxab-11177114","title":"OEM Goodman -0.50\" WC Pressure Switch for GMV951155DXAB — 11177114","description":"\u003ch2\u003eGoodman 11177114 Air Pressure Switch (-0.50\" WC, NO)\u003c\/h2\u003e\u003cp\u003eThis genuine OEM Goodman 11177114 air pressure switch is a direct-fit safety control for the \u003cstrong\u003eGMV951155DXAB\u003c\/strong\u003e 96% AFUE two-stage variable-speed gas furnace. The switch monitors combustion draft and confirms proper venting before the ignition sequence is allowed to proceed. A failing pressure switch is one of the most common causes of a furnace that ignites briefly and then locks out, so replacing it with the correct OEM part restores reliable heating and eliminates nuisance trips.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip point:\u003c\/strong\u003e -0.50 inch water column (WC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact configuration:\u003c\/strong\u003e Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Single-stage negative-pressure diaphragm switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e High-stage draft\/vent proving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMV951155DXAB and compatible 95\/96% two-stage variable-speed models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 11177114\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman 11177114\u003c\/strong\u003e is calibrated to the exact -0.50\" WC setpoint the furnace control board expects, ensuring correct staging and safety logic. Generic universal switches may carry a similar rating but often differ in mounting, hose-barb orientation, and actual trip tolerance, which can lead to false lockouts. For a furnace with a two-stage variable-speed blower, we strongly recommend the OEM part for guaranteed compatibility.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRating: Moderate (2\/5).\u003c\/strong\u003e Requires shutting off power and gas, removing the pressure tubing, and transferring the mounting screws and wiring. Most confident DIYers can complete the swap in 20–30 minutes; verify the tubing is free of condensate and reconnected to the matching port. Professional installation recommended if you are not comfortable working near gas components.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058178933107,"sku":"GOODMAN-12870","price":76.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-50-wc-pressure-switch-for-gmv951155dxab-11177114","provider":"National HVAC Parts","version":"1.0","type":"link"}