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The Goodman 20197308 Pressure Switch is a genuine OEM safety control rated at -.10 in. WC (normally open) for the Amana/Goodman AMVC950905CXAA variable-speed gas furnace. The pressure switch confirms that the induced-draft blower is producing adequate airflow before allowing ignition, protecting against unsafe combustion from a blocked flue, plugged drain, or failing inducer. A faulty switch is a leading cause of furnace no-heat lockouts.
The OEM Goodman pressure switch is factory-calibrated to the exact -.10" WC trip point your furnace's sequence of operation depends on. Generic switches with approximate set points can nuisance-trip or, worse, fail to prove a genuine fault — defeating a critical safety function. Always match the OEM set point and NO/NC configuration.
Easy–Moderate (2 of 5). Remove two mounting screws, transfer the wiring and the sensing hose to the new switch, and remount. Verify the hose is clear and seated. Shut off power before servicing. Most handy homeowners can complete this repair.