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The Goodman 0130F00439 Pressure Switch is a genuine OEM combustion-air/draft safety control factory-calibrated to -1.27" water column (rose-colored body) for the ACES960804CNAA gas furnace. It verifies that the inducer motor is producing adequate venting draft before allowing ignition, preventing the furnace from firing if the flue is blocked or the inducer fails.
The OEM 0130F00439 is set to the precise -1.27" WC setpoint your furnace requires. Pressure switches are setpoint-specific — installing a generic switch with the wrong WC rating is the #1 cause of furnaces that lock out, short-cycle, or run unsafely. Matching the rose -1.27" rating guarantees correct draft proving and warranty integrity.
Easy–Moderate (2/5). Plan for 15–20 minutes: kill power, label and detach the silicone sensing hose(s), unplug the wire harness, remove the mounting screws, and reverse for the new switch. Verify the hose seats fully and is free of moisture. When in doubt, use a qualified HVAC technician.