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The Goodman 0130F00439 Pressure Switch is a genuine OEM air-proving switch rated at -1.27" WC (rose color code) for the AMES961005CNAA gas furnace and compatible Goodman/Amana models. This negative-pressure switch verifies that the draft inducer is running and that the venting/condensate path is clear before the control board allows ignition. A drifting or stuck switch is a leading cause of pressure-switch fault codes, draft-inducer lockouts, and no-heat calls — often triggered by a blocked vent, clogged condensate trap, or a cracked hose.
Pressure switches are set-point specific, so the OEM 0130F00439 guarantees the exact -1.27" WC calibration and hose-port fit for this furnace. Our Generic equivalent matches the same set point and connections at a lower cost for out-of-warranty repairs. Confirm the -1.27" WC rating and rose color before ordering.
Difficulty: Easy (2/5). Power off, mark and remove the pressure hose(s) and electrical connectors, unbolt the switch, and reinstall in the same orientation. Inspect and clear the sensing hose while you're in there. Roughly 15 minutes with basic tools.