{"product_id":"oem-goodman-dual-pressure-switch-30-75-for-amvc950453-11177113","title":"OEM Goodman Dual Pressure Switch -.30\/-.75 for AMVC950453 — 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\u003eAMVC950453BXBA\u003c\/strong\u003e modulating variable-speed gas furnace and compatible Goodman and Amana models. This single gray assembly houses two switches — set at \u003cstrong\u003e-0.30\" WC and -0.75\" WC\u003c\/strong\u003e — that verify proper inducer draft at both low-fire and high-fire stages before the control board permits ignition. It protects against blocked flues, condensate blockage, and inducer failure by preventing the burners from firing without adequate venting.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Combination (dual) negative-pressure \/ draft switch\u003c\/li\u003e\n\u003cli\u003eSet points: -0.30\" W.C. and -0.75\" W.C.\u003c\/li\u003e\n\u003cli\u003eColor: Gray housing\u003c\/li\u003e\n\u003cli\u003eFunction: Proves inducer draft at low and high fire stages\u003c\/li\u003e\n\u003cli\u003eFits: AMVC950453BXBA and compatible Goodman\/Amana modulating furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 11177113\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure-switch set points are furnace-specific and safety-critical. The \u003cstrong\u003eOEM 11177113\u003c\/strong\u003e is factory-calibrated to the exact -0.30\"\/-0.75\" trip values your control board expects. A generic switch with different set points causes pressure-switch lockout codes or, dangerously, allows firing with poor draft. For a two-stage modulating furnace, use OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5)\u003c\/strong\u003e — Shut off power and gas. Label and transfer the hoses to the matching ports and move the wiring to the new switch, keeping tubing routing identical. Confirm hoses are free of condensate and cracks. After install, cycle the furnace and verify both stages prove draft correctly.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057883693427,"sku":"GOODMAN-8719","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-dual-pressure-switch-30-75-for-amvc950453-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}