{"product_id":"oem-goodman-30-75-in-wc-combination-pressure-switch-for-gmv950453bxba-11177113","title":"OEM Goodman -.30\/-.75 in WC Combination Pressure Switch for GMV950453BXBA — 11177113","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 11177113 Combination Pressure Switch\u003c\/strong\u003e is a genuine OEM dual-stage safety control for the \u003cstrong\u003eGMV950453BXBA\u003c\/strong\u003e two-stage variable-speed gas furnace. It monitors inducer draft on both firing stages, closing at \u003cstrong\u003e-0.30 in WC\u003c\/strong\u003e (low stage) and \u003cstrong\u003e-0.75 in WC\u003c\/strong\u003e (high stage) to confirm proper venting before the gas valve is allowed to open.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 11177113\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetpoints:\u003c\/strong\u003e -0.30 in WC \/ -0.75 in WC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing color:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Combination (two-stage) negative-pressure switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMV950453BXBA two-stage furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Pressure Switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e A pressure switch is a life-safety device — its setpoints must match the furnace vent design exactly. The OEM 11177113 is factory-calibrated to both stages; a mismatched generic can allow ignition under blocked-vent conditions or cause chronic lockouts. Always use OEM for combustion safety controls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Moderate (3\/5). Disconnect power, label and transfer the wiring and hose(s) to the matching ports, then mount the new switch. Verify low- and high-stage operation with a manometer after install. A licensed technician is recommended.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058174476659,"sku":"GOODMAN-12752","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-30-75-in-wc-combination-pressure-switch-for-gmv950453bxba-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}