{"product_id":"oem-goodman-pressure-switch-37-wc-no-for-ams950704cxab-20197312","title":"OEM Goodman Pressure Switch -.37\" WC NO for AMS950704CXAB — 20197312","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20197312 Air Pressure Switch\u003c\/strong\u003e is a genuine OEM safety control calibrated at \u003cstrong\u003e-0.37 in. WC (normally open)\u003c\/strong\u003e for the \u003cstrong\u003eAMS950704CXAB\u003c\/strong\u003e high-efficiency gas furnace. This switch verifies that the inducer draft motor is generating adequate airflow before the ignition sequence begins. If it does not sense the correct negative pressure, the furnace safely locks out ignition — protecting the home from incomplete combustion and flue-gas spillage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20197312\u003c\/li\u003e\n\u003cli\u003eType: Air proving \/ draft pressure switch\u003c\/li\u003e\n\u003cli\u003eSet Point: -0.37 in. WC (water column)\u003c\/li\u003e\n\u003cli\u003eContact Configuration: Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003eCompatible Model: AMS950704CXAB (Goodman\/Amana furnace)\u003c\/li\u003e\n\u003cli\u003eEquipment Type: High-efficiency gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman 20197312\u003c\/strong\u003e is factory-calibrated to the precise -0.37 in. WC trip point required by this furnace's control board and venting design. A generic switch with a mismatched set point can cause false lockouts, short cycling, or — worse — fail to trip when draft is inadequate. Because this is a combustion-safety component, always match the exact OEM part and pressure rating.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate (2 of 5).\u003c\/strong\u003e Replacement takes about 20–30 minutes: shut off power and gas, disconnect the two spade terminals and the rubber sensing hose, unscrew the switch bracket, and install the new unit in the same orientation. Confirm the hose is seated with no kinks. If lockout codes persist after replacement, have a licensed HVAC technician inspect the inducer and venting.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057753145715,"sku":"GOODMAN-7351","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-pressure-switch-37-wc-no-for-ams950704cxab-20197312","provider":"National HVAC Parts","version":"1.0","type":"link"}