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The genuine Goodman 0130F00434 Pressure Switch is an OEM dual-stage draft-proving control for the Goodman ACVC961005CNBA two-stage 96% AFUE gas furnace. Rated at -.67" / -1.15" WC, it confirms correct draft inducer airflow on both the low-fire and high-fire stages before allowing ignition, preventing operation if the vent or condensate drain is blocked.
The set-point pressures (-.67/-1.15) are matched to this furnace's inducer and venting. A generic switch with different trip values will cause failed ignition attempts or unsafe operation. This OEM part guarantees the exact dual set-points and hose-port configuration the control board expects.
Moderate — Two screws, two electrical terminals, and two silicone draft hoses that must be reconnected to the correct ports. Clear any condensate from the hoses during install. Plan on 20–30 minutes.