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The 0130F00434 is a genuine OEM dual-stage pressure switch for the Goodman/Amana AMEC961004CNAD two-stage condensing furnace. It proves adequate draft and correct venting by sensing the negative pressure created by the inducer motor. The dual setpoints — -0.67 in. WC and -1.15 in. WC — correspond to low-fire and high-fire operation. If proper vacuum is not confirmed, the control board will not energize the gas valve, preventing operation with a blocked flue or failed inducer.
Pressure switch setpoints are matched precisely to the furnace's inducer and vent design. A generic switch with different trip pressures is a leading cause of false lockouts and intermittent no-heat calls. This OEM 0130F00434 carries the exact -.67/-1.15 calibration the AMEC961004CNAD control expects.
Mounting screws, two silicone hoses, and spade terminals. Inspect the hoses for cracks or condensate blockage while replacing — a clogged hose mimics a bad switch. Verify tube routing before restoring power. About a 20–30 minute job.