{"product_id":"oem-goodman-30-75-in-wc-combination-pressure-switch-for-wgfm295045v3bab-11177113","title":"OEM Goodman -.30\/-.75 in WC Combination Pressure Switch for WGFM295045V3BAB — 11177113","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 11177113 Combination Pressure Switch\u003c\/strong\u003e is a genuine OEM safety control engineered for the \u003cstrong\u003eWGFM295045V3BAB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This dual-stage gray switch monitors both low- and high-fire draft, verifying proper venting and inducer airflow before the control board permits ignition. If a blocked vent, cracked hose, or failing inducer drops pressure below the setpoint, the switch opens and locks out the burners — protecting your home from unsafe combustion.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetpoints:\u003c\/strong\u003e -0.30 in. WC and -0.75 in. WC (two-stage)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Combination \/ dual pressure switch, negative pressure sensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Normally open, closes on pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e WGFM295045V3BAB two-stage 96% AFUE furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e Our OEM Goodman 11177113 carries the exact factory-calibrated setpoints and hose port geometry your furnace was designed around. Universal-style switches often miss the precise -0.30\"\/-0.75\" dual-stage calibration, causing nuisance lockouts or unsafe operation. For a combustion safety component, OEM is the right call.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty: Moderate (2\/5).\u003c\/strong\u003e A DIY-capable homeowner can swap this in roughly 20–30 minutes with a nut driver — disconnect power and gas, note the hose routing, transfer the two spade wires and tubing, and mount the replacement. If you are unsure about draft testing, have a licensed HVAC technician verify operation with a manometer. Always cut power at the breaker before servicing.\u003c\/p\u003e\u003cp\u003eBacked by genuine Goodman quality and shipped from National HVAC Parts.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058244174195,"sku":"GOODMAN-14505","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-30-75-in-wc-combination-pressure-switch-for-wgfm295045v3bab-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}