{"product_id":"oem-goodman-0-37in-no-pressure-switch-for-wgfm195090s5dab-20197312","title":"OEM Goodman -0.37in NO Pressure Switch for WGFM195090S5DAB — 20197312","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20197312 Pressure Switch\u003c\/strong\u003e is a genuine OEM safety component engineered for the \u003cstrong\u003eWGFM195090S5DAB\u003c\/strong\u003e modulating gas furnace and compatible Goodman\/Amana models. This -0.37 inch W.C., normally-open (NO) switch monitors combustion draft and inducer airflow, proving that the venting system is operating within safe limits before the control board allows ignition. When the switch fails, the furnace typically locks out and will not fire — making this an essential no-heat repair part.\u003c\/p\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 Air pressure \/ draft-proving switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetpoint:\u003c\/strong\u003e -0.37 in. W.C. (negative pressure)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas furnace inducer\/draft safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman WGFM195090S5DAB and related 95%+ AFUE furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e This is a factory-original Goodman switch calibrated to the exact -0.37\" trip point the furnace's control logic expects. Generic switches may carry a similar rating but can drift out of spec, causing nuisance lockouts or bypassing a real safety condition. For a component tied directly to combustion safety, the OEM part delivers correct calibration and reliable long-term performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty: Moderate.\u003c\/strong\u003e Requires shutting off gas and power, removing the two spade wire connectors, unclipping the silicone hose, and swapping the switch on its bracket — typically 20–30 minutes. Verify hose routing is free of condensate and confirm proper firing on restart. If you are unsure about combustion safety testing, we recommend a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058239619443,"sku":"GOODMAN-14390","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-37in-no-pressure-switch-for-wgfm195090s5dab-20197312","provider":"National HVAC Parts","version":"1.0","type":"link"}