{"product_id":"oem-goodman-30-75-combination-pressure-switch-amvc9507-11177113","title":"OEM Goodman -.30\/-.75\" Combination Pressure Switch AMVC9507 — 11177113","description":"\u003ch2\u003eGoodman 11177113 Combination Pressure Switch\u003c\/h2\u003e\u003cp\u003eThe genuine OEM Goodman 11177113 is a dual-trip combination pressure switch engineered for the Amana\/Goodman \u003cstrong\u003eAMVC950704CXAE\u003c\/strong\u003e two-stage variable-speed furnace and related 95% AFUE models. This gray-bodied switch monitors negative draft pressure across both firing stages, verifying safe venting and combustion airflow before the ignition sequence is allowed to proceed. If a blocked flue, failed inducer, or clogged condensate line drops draft below the setpoint, the switch opens and locks out the burner to protect your equipment and home.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Combination (dual) negative-pressure switch\u003c\/li\u003e\n\u003cli\u003eTrip points: -0.30\" W.C. and -0.75\" W.C.\u003c\/li\u003e\n\u003cli\u003eHousing color: Gray\u003c\/li\u003e\n\u003cli\u003eApplication: Two-stage condensing gas furnace\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 11177113\u003c\/li\u003e\n\u003cli\u003eFits: AMVC950704CXAE and compatible Goodman\/Amana 95% furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003egenuine OEM Goodman\u003c\/strong\u003e switch with factory-calibrated diaphragms — both trip points are set and tested to Goodman's spec, so staging and safety lockout behave exactly as the control board expects. Aftermarket generics are often single-calibration and can cause nuisance lockouts or incorrect stage sequencing on variable-speed boards. When paired with a modulating control, OEM calibration matters.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Moderate\u003c\/h3\u003e\u003cp\u003eRequires shutting off gas and power, disconnecting the pressure tubing at the correct ports, and transferring the wiring harness. Note tube routing before removal. A manometer check after install is strongly recommended. Most experienced DIYers complete this in 20–30 minutes; if you are unsure about draft testing, have an HVAC technician verify.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057885659507,"sku":"GOODMAN-8780","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-30-75-combination-pressure-switch-amvc9507-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}