{"product_id":"oem-goodman-0-37-wc-no-pressure-switch-for-ams950704cxa-20197312","title":"OEM Goodman -0.37\" WC NO Pressure Switch for AMS950704CXA — 20197312","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20197312 Pressure Switch\u003c\/strong\u003e is a genuine OEM air-proving safety control designed for the Goodman\/Amana \u003cstrong\u003eAMS950704CXA\u003c\/strong\u003e gas furnace and compatible models. This normally-open switch monitors negative pressure (vacuum) in the combustion venting system and closes at approximately \u003cstrong\u003e-0.37 inches water column\u003c\/strong\u003e to confirm proper draft before the ignition sequence begins. If venting is blocked or the inducer fails, the switch keeps the furnace safely locked out.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 20197312\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Negative-pressure (vacuum) proving switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Setpoint:\u003c\/strong\u003e -0.37\" W.C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas furnace draft\/pressure proving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMS950704CXA and compatible units\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003egenuine OEM Goodman component\u003c\/strong\u003e calibrated to the exact -0.37\" W.C. setpoint your furnace's control board expects. Generic or mis-rated switches can trip at the wrong pressure, causing nuisance lockouts or, worse, allowing operation under unsafe draft conditions. For a safety control, we recommend OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — Requires disconnecting power, transferring the vacuum hose, and swapping two spade terminals. A multimeter for continuity testing is recommended. Most experienced DIYers complete the job in 20–30 minutes; hire a licensed HVAC technician if you are unsure.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057750819187,"sku":"GOODMAN-7340","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-37-wc-no-pressure-switch-for-ams950704cxa-20197312","provider":"National HVAC Parts","version":"1.0","type":"link"}