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The Goodman 20197308 is a genuine OEM air pressure switch engineered for the Amana/Goodman AMVM961155DXAA modulating variable-speed gas furnace. This normally-open (NO) switch is calibrated to trip at -0.10" water column (WC), verifying proper draft and combustion airflow before the ignition sequence begins. If the inducer draft is insufficient, the switch keeps the gas valve closed — a critical safety function that prevents unsafe firing.
The genuine OEM 20197308 arrives factory-calibrated to the exact -0.10" WC setpoint your furnace's control board expects. Aftermarket switches often carry a nearby but non-identical setpoint, which can cause nuisance lockouts or, worse, mask a genuine airflow fault. For a safety component tied to combustion, we recommend the OEM part.
Easy (2/5). Typically a 15–20 minute repair: cut power at the disconnect, photograph and transfer the two spade wire connections, unclip the pressure tubing, swap the switch, and reconnect. No calibration required. Always verify draft operation after replacement.
Replacing a combustion safety device? If you are not comfortable working around gas appliances, consult a licensed HVAC technician.