{"product_id":"oem-goodman-30-75-combination-pressure-switch-amvc95-11177113","title":"OEM Goodman -.30\/-.75 Combination Pressure Switch AMVC95 — 11177113","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e11177113 Combination Pressure Switch\u003c\/strong\u003e is a genuine OEM dual-stage air-proving safety control for the Amana\/Goodman \u003cstrong\u003eAMVC950453BXAB\u003c\/strong\u003e two-stage variable-speed furnace. This gray combination switch integrates two set points — \u003cstrong\u003e-.30 in. w.c.\u003c\/strong\u003e and \u003cstrong\u003e-.75 in. w.c.\u003c\/strong\u003e — into a single body to confirm proper draft on both low-fire and high-fire stages before the ignition sequence is allowed to proceed.\u003c\/p\u003e\u003cp\u003eThe pressure switch senses inducer draft and proves the flue is clear and the combustion air path is open. If the switch fails to close (or opens during a call for heat), the control board locks out the burners to prevent unsafe operation — a common cause of no-heat and flashing error codes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Combination (two-stage) negative-pressure switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip points:\u003c\/strong\u003e -.30 in. w.c. and -.75 in. w.c.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 11177113\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e AMVC950453BXAB and compatible two-stage AMVC95 furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e Genuine 11177113 is calibrated to the exact factory set points and hose-port configuration of the AMVC95 inducer. Generic switches often use single set points or different actuation pressures, which can cause nuisance lockouts or defeat a critical safety function. Choose OEM for safety controls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Easy to moderate. Disconnect power, transfer the sensing hoses and wiring to the new switch, and mount it. Verify draft readings after replacement. A basic multimeter and manometer check is recommended.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057877467507,"sku":"GOODMAN-8671","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-30-75-combination-pressure-switch-amvc95-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}