{"product_id":"oem-goodman-0-50-wc-pressure-switch-for-amvc951155dxad-11177114","title":"OEM Goodman -0.50\" WC Pressure Switch for AMVC951155DXAD — 11177114","description":"\u003ch2\u003eGoodman 11177114 Air Pressure Switch (-0.50\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman 11177114\u003c\/strong\u003e is a genuine OEM air pressure switch engineered as a direct-fit replacement for the \u003cstrong\u003eAMVC951155DXAD\u003c\/strong\u003e two-stage variable-speed gas furnace and compatible Goodman\/Amana models. It monitors combustion draft and venting to confirm safe airflow before the ignition sequence begins. A failing pressure switch is one of the most common causes of a furnace that ignites and shuts down, locks out, or fails to fire at all.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 11177114\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet point:\u003c\/strong\u003e -0.50\" WC (water column)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch action:\u003c\/strong\u003e Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Draft \/ combustion air proving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e AMVC951155DXAD and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Single-stage negative pressure switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a factory \u003cstrong\u003eOEM\u003c\/strong\u003e part built to Goodman's exact pressure calibration, ensuring the switch trips at the precise -0.50\" WC threshold your furnace's control board expects. Generic universal switches can be recalibrated to approximate this value, but out-of-spec set points cause nuisance lockouts and, in the worst case, unsafe operation. For a two-stage variable-speed system like the AMVC951155DXAD, we strongly recommend the OEM switch.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Replacement typically takes 15–20 minutes with basic hand tools: cut power at the breaker, disconnect the two spade terminals and the silicone tubing, unscrew the switch, and reverse the process. Always verify the tubing routing and set point before restoring power. If you are unsure, consult a licensed HVAC technician.\u003c\/p\u003e\u003cp\u003eShips fast and backed by our fitment guarantee. Contact info@nationalhvacparts.com with your full furnace model number if you need help confirming compatibility.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057993597299,"sku":"GOODMAN-8970","price":76.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-50-wc-pressure-switch-for-amvc951155dxad-11177114","provider":"National HVAC Parts","version":"1.0","type":"link"}