{"product_id":"oem-goodman-30-75-in-wc-pressure-switch-gmv950453bxab-11177113","title":"OEM Goodman -.30\/-.75 in WC Pressure Switch GMV950453BXAB — 11177113","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 11177113 Combination Pressure Switch\u003c\/strong\u003e is a genuine OEM dual-stage draft-proving control for the \u003cstrong\u003eGMV950453BXAB\u003c\/strong\u003e two-stage 95% AFUE gas furnace. It combines two set points — \u003cstrong\u003e-0.30 in WC\u003c\/strong\u003e and \u003cstrong\u003e-0.75 in WC\u003c\/strong\u003e — in a single gray housing, verifying correct inducer draft on both low-fire and high-fire stages before the ignition sequence is allowed to proceed. If venting is blocked or the inducer is weak, the switch prevents ignition, protecting against unsafe combustion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 11177113\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Combination (dual) negative-pressure switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Points:\u003c\/strong\u003e -0.30 in WC and -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\u003eCategory:\u003c\/strong\u003e Pressure Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStages:\u003c\/strong\u003e Two-stage (low \/ high fire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Goodman GMV950453BXAB furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure-switch set points are model-specific and safety-critical. The exact \u003cstrong\u003e-0.30\/-0.75 in WC\u003c\/strong\u003e calibration and dual-port gray body on this genuine Goodman switch cannot be reliably matched by a universal part. An incorrect set point causes nuisance lockouts (Code 6\/pressure-switch faults) or, worse, allows firing under poor draft. Always replace with the exact OEM number.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — Shut off power, label and transfer the pressure tubing to the correct ports, and reconnect the wiring harness. Confirm tubing is free of condensate and firmly seated. Estimated time: 20–30 minutes. Recommended for experienced DIYers or a licensed technician.\u003c\/p\u003e\u003cp\u003eGenuine OEM part backed by same-day shipping on in-stock orders.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058173722995,"sku":"GOODMAN-12739","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-30-75-in-wc-pressure-switch-gmv950453bxab-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}