{"product_id":"oem-goodman-0-50-wc-no-pressure-switch-for-amv91155dxbc-11177114","title":"OEM Goodman 0.50\" WC NO Pressure Switch for AMV91155DXBC — 11177114","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e11177114 Pressure Switch\u003c\/strong\u003e is a genuine OEM air-proving switch for the Goodman\/Amana \u003cstrong\u003eAMV91155DXBC\u003c\/strong\u003e high-efficiency gas furnace. Rated at \u003cstrong\u003e-0.50\" WC, normally open (NO)\u003c\/strong\u003e, it confirms that the induced-draft blower is producing adequate negative pressure before the ignition sequence is allowed to proceed. This is a core safety interlock: if venting is blocked, the drain is clogged, or the inducer is weak, the switch stays open and prevents the burners from firing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 11177114\u003c\/li\u003e\n\u003cli\u003eFits: Goodman\/Amana AMV91155DXBC furnace\u003c\/li\u003e\n\u003cli\u003eSet Point: -0.50\" WC (water column)\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003eType: Induced-draft \/ air-proving pressure switch\u003c\/li\u003e\n\u003cli\u003eFunction: Verifies draft before ignition; safety interlock\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana (Daikin)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman 11177114\u003c\/strong\u003e is calibrated to the exact -0.50\" WC trip point this furnace requires. Generic switches with a different set point can cause nuisance no-heat lockouts or, if set too loose, allow firing under poor-draft conditions. For a pressure-proving safety switch, the OEM part is the correct and safest choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — Disconnect the hose(s) and spade terminals, transfer to the new switch in the same orientation, and remount. Shut off power and gas first. If the furnace still locks out after replacement, inspect the vent, drain trap, and inducer for restriction.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057846600051,"sku":"GOODMAN-7854","price":76.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-50-wc-no-pressure-switch-for-amv91155dxbc-11177114","provider":"National HVAC Parts","version":"1.0","type":"link"}