{"product_id":"oem-goodman-dual-pressure-switch-30-75-for-amvc950453bxac-11177113","title":"OEM Goodman Dual Pressure Switch -.30\/-.75 for AMVC950453BXAC — 11177113","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e11177113 Combination Pressure Switch\u003c\/strong\u003e is a genuine OEM two-stage draft-proving control for the \u003cstrong\u003eAMVC950453BXAC\u003c\/strong\u003e variable-speed condensing furnace. This gray dual-switch assembly combines two set points — \u003cstrong\u003e-0.30\" W.C.\u003c\/strong\u003e and \u003cstrong\u003e-0.75\" W.C.\u003c\/strong\u003e — into a single body, proving adequate inducer draft on both the low-fire and high-fire stages before the ignition sequence is allowed to continue. If venting is blocked, the condensate trap is clogged, or the inducer is weak, the switch keeps its contacts open and locks out the burners for safety.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet points:\u003c\/strong\u003e -0.30\" W.C. and -0.75\" W.C. (dual\/combination)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Two-stage draft \/ vacuum proving switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody color:\u003c\/strong\u003e Gray, dual-port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMVC950453BXAC two-stage furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Genuine OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this control governs both firing stages, the calibrated set points must match the AMVC950453BXAC exactly. The \u003cstrong\u003eOEM Goodman switch\u003c\/strong\u003e is factory-set to -0.30\"\/-0.75\" W.C.; a generic single or mis-rated switch will cause nuisance lockouts or fail to prove draft correctly. For a combination two-stage switch, OEM is essential.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Disconnect power, label and transfer the wiring harness and the two silicone tubing ports to the matching fittings, and mount with the original screws. Confirm both stages prove draft on a test cycle after installation.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057878122867,"sku":"GOODMAN-8683","price":79.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-dual-pressure-switch-30-75-for-amvc950453bxac-11177113","provider":"National HVAC Parts","version":"1.0","type":"link"}