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The Goodman 0130F00479 is a genuine OEM combination pressure switch built for AMSS920803BNAA and compatible Goodman/Amana gas furnaces. This dual-function switch monitors both the low-fire and high-fire draft-inducer vacuum, verifying safe venting before the control board permits ignition. A failing pressure switch is one of the most common causes of a furnace that clicks but won't light, or that locks out on a flashing-code fault.
This is the genuine OEM switch, factory-calibrated to the exact vacuum setpoints your furnace's control logic expects. Generic aftermarket switches often carry approximate trip points that can cause nuisance lockouts or unsafe operation. For a safety-critical component like a pressure switch, we strongly recommend OEM.
Moderate (2/5). Replacement takes 20–30 minutes with basic hand tools: cut power, label and transfer the tubing and spade connectors, and mount to the same bracket. Always confirm no cracks or blockages in the draft-inducer hose. If unsure, consult a licensed HVAC technician.
Compatible with Goodman and Amana furnaces using part 0130F00479. Verify your existing part number before ordering.