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The Goodman 0130F00001P is a factory OEM air pressure switch engineered for AMS950904CXAB gas furnaces and compatible Goodman/Amana 96% AFUE models. This normally-open (NO) switch monitors draft-inducer vacuum and closes at a -1.2 in. W.C. setpoint, proving airflow before the control board allows ignition. A weak or failed pressure switch is a leading cause of a furnace that clicks but will not light, or one that lights and short-cycles on a flame-proving fault.
This is a genuine OEM switch calibrated to the furnace manufacturer's exact vacuum spec. Generic universal switches often carry a nearby-but-inexact setpoint that can nuisance-trip on marginal venting or in high-altitude installs. For reliable flame proving and to keep your warranty intact, OEM is the safe choice.
Easy (2/5). Cut power at the disconnect, photograph the hose and wire routing, remove two mounting screws, swap the switch, and reconnect the tube and terminals. Typical replacement takes 15–20 minutes with a nut driver. Always de-energize the furnace before servicing.