{"product_id":"oem-goodman-50-wc-no-pressure-switch-for-gmv951155dxa-11177114","title":"OEM Goodman -.50\" WC NO Pressure Switch for GMV951155DXA — 11177114","description":"\u003ch2\u003eGoodman 11177114 Pressure Switch (-.50\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e11177114 pressure switch\u003c\/strong\u003e is the genuine OEM draft-proving control for the Goodman \u003cstrong\u003eGMV951155DXA\u003c\/strong\u003e 95% AFUE variable-speed condensing furnace. This normally-open switch, set to a \u003cstrong\u003e-0.50\" water column (WC)\u003c\/strong\u003e trip point, confirms that the induced-draft blower is producing proper airflow before the control board allows ignition. If adequate draft isn't sensed — due to blocked venting, a failing inducer, or a bad switch — the furnace safely locks out to prevent unsafe combustion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 11177114\u003c\/li\u003e\n\u003cli\u003eType: Air pressure \/ draft-proving switch\u003c\/li\u003e\n\u003cli\u003eSet Point: -0.50\" WC (water column)\u003c\/li\u003e\n\u003cli\u003eContact State: Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMV951155DXA and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eConnections: OEM quick-connect spade terminals + tubing port\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure switches are calibrated safety devices — the -.50\" set point and normally-open configuration must match this furnace exactly. The genuine Goodman switch is factory-calibrated to that spec, ensuring reliable proving without nuisance lockouts or unsafe overrides. Generic switches with slightly different set points are a leading cause of intermittent no-heat calls and can compromise combustion safety. Insist on the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRating: Easy to Moderate (DIY-friendly, 15–20 minutes).\u003c\/strong\u003e Disconnect power, note and photograph the wire and tubing positions, remove the spade terminals and pressure tube, unscrew the switch, and install the replacement in the same orientation. Reconnect the tubing securely and verify the furnace completes a full ignition sequence. If lockouts persist, inspect the inducer and venting for the true cause.\u003c\/p\u003e\u003cp\u003eGenuine Goodman safety control. Fast shipping and secure checkout.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058178539891,"sku":"GOODMAN-12859","price":76.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-50-wc-no-pressure-switch-for-gmv951155dxa-11177114","provider":"National HVAC Parts","version":"1.0","type":"link"}