{"product_id":"oem-goodman-0-10-no-pressure-switch-for-gmh950704cxaf-20197308","title":"OEM Goodman -0.10\" NO Pressure Switch for GMH950704CXAF — 20197308","description":"\u003ch2\u003eGoodman 20197308 Pressure Switch (-0.10\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe Goodman 20197308 is the factory air-proving pressure switch calibrated for the GMH950704CXAF 96% AFUE two-stage gas furnace. This switch verifies that the inducer draft motor is moving combustion gases before the control board allows ignition. It is a normally-open (NO) switch rated to close at approximately -0.10 inches of water column. If the switch fails to close, the furnace will lock out and refuse to fire — protecting your home from unsafe combustion conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20197308\u003c\/li\u003e\n\u003cli\u003eType: Air-proving \/ draft pressure switch\u003c\/li\u003e\n\u003cli\u003eSetpoint: -0.10 in. W.C. (negative pressure)\u003c\/li\u003e\n\u003cli\u003eAction: Normally Open (NO), closes on draft\u003c\/li\u003e\n\u003cli\u003ePrimary Fit: Goodman GMH950704CXAF\u003c\/li\u003e\n\u003cli\u003eConnection: Single-port with hose barb, 1\/4\" spade terminals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure switches are calibration-critical. The genuine Goodman 20197308 is factory-set to the exact -0.10\" trip point your board expects. Generic switches with a different setpoint or port count can cause nuisance lockouts, short cycling, or — worse — allow ignition under poor draft. Always match the OEM setpoint stamped on the switch body.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate (2\/5).\u003c\/strong\u003e Disconnect furnace power, photograph the wiring, transfer the two spade terminals and the rubber sensing hose to the new switch, then mount it in the original bracket. Verify the hose is free of condensate and kinks. Typically a 20–30 minute repair with a nut driver. Confirm proper ignition sequence after installation.\u003c\/p\u003e\u003cp\u003eGenuine OEM safety component — do not defeat or jumper a pressure switch. Fast shipping from National HVAC Parts.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058116772211,"sku":"GOODMAN-11291","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-10-no-pressure-switch-for-gmh950704cxaf-20197308","provider":"National HVAC Parts","version":"1.0","type":"link"}