{"product_id":"oem-goodman-60-wc-no-pressure-switch-for-gch91155dxab-20197311","title":"OEM Goodman .60\" WC NO Pressure Switch for GCH91155DXAB — 20197311","description":"\u003ch2\u003eGoodman 20197311 Pressure Switch — .60\" WC, Normally Open\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20197311\u003c\/strong\u003e is an OEM air-proving pressure switch calibrated at \u003cstrong\u003e-0.60 inches of water column (WC)\u003c\/strong\u003e in a \u003cstrong\u003enormally open (NO)\u003c\/strong\u003e configuration, built for the \u003cstrong\u003eGCH91155DXAB\u003c\/strong\u003e and related condensing gas furnaces. The switch senses negative pressure created by the inducer blower and closes to prove adequate draft before the control board allows ignition. If the venting, drain trap, or inducer is restricted, the switch stays open and safely blocks the burners.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSet point: -0.60 in. WC\u003c\/li\u003e\n\u003cli\u003eAction: Normally Open (closes on pressure)\u003c\/li\u003e\n\u003cli\u003eFunction: Combustion air \/ draft proving safety switch\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman GCH91155DXAB and related condensing furnaces\u003c\/li\u003e\n\u003cli\u003eBrand: Genuine Goodman OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure switches must match the furnace's exact set point — a generic switch rated even 0.05\" WC off will either nuisance-trip or fail to prove a real venting fault, defeating a critical safety interlock. The \u003cstrong\u003egenuine OEM 20197311\u003c\/strong\u003e is factory-calibrated to -0.60\" WC so the furnace ignites reliably and shuts down correctly when draft is lost.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — cut power, unplug the two spade terminals, transfer the sensing hose, and mount the new switch. Always confirm the hose is clear of condensate and the trap is primed, since a blocked hose mimics a failed switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058056610163,"sku":"GOODMAN-20197311","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-60-wc-no-pressure-switch-for-gch91155dxab-20197311","provider":"National HVAC Parts","version":"1.0","type":"link"}