{"product_id":"oem-goodman-30-75-in-wc-pressure-switch-amvc950704cxba-11177113","title":"OEM Goodman -.30\/-.75 in WC Pressure Switch AMVC950704CXBA — 11177113","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e11177113 Combination Pressure Switch\u003c\/strong\u003e is a genuine OEM dual-stage air-proving safety switch built for the \u003cstrong\u003eAMVC950704CXBA\u003c\/strong\u003e two-stage variable-speed furnace and compatible Goodman\/Amana models. This gray-bodied switch combines two trip points — \u003cstrong\u003e-0.30\" WC\u003c\/strong\u003e and \u003cstrong\u003e-0.75\" WC\u003c\/strong\u003e — to verify proper draft and venting on both low-fire and high-fire operation before allowing ignition. If adequate negative pressure isn't sensed, the switch prevents the furnace from firing, protecting against blocked vents and unsafe combustion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Combination (two-stage) negative air pressure switch\u003c\/li\u003e\n\u003cli\u003eSetpoints: -0.30\" WC and -0.75\" WC\u003c\/li\u003e\n\u003cli\u003eColor code: Gray\u003c\/li\u003e\n\u003cli\u003eFunction: Draft\/vent proving safety interlock\u003c\/li\u003e\n\u003cli\u003eFits: AMVC950704CXBA and compatible Goodman\/Amana 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\u003eThe \u003cstrong\u003egenuine OEM 11177113\u003c\/strong\u003e is factory-calibrated to the exact trip pressures required for both firing stages. Generic switches with mismatched setpoints can cause nuisance lockouts, failure to reach high-fire, or bypass a genuine venting fault. On a safety-critical draft-proving control, OEM calibration is essential.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — Replacement involves disconnecting power, unplugging the wiring harness, transferring the pressure tubing to the correct ports, and remounting the switch. Correct tube routing is important. A qualified HVAC technician should verify both stages prove properly after installation.\u003c\/p\u003e\u003cp\u003eRestore safe, reliable two-stage operation with a genuine Goodman OEM pressure switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057886118259,"sku":"GOODMAN-8792","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-30-75-in-wc-pressure-switch-amvc950704cxba-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}