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The Goodman 0130M00074 High Pressure Cut-Off Switch is a genuine OEM safety control for APH1549M41AB heat pumps. It opens the compressor circuit when refrigerant discharge pressure climbs into the danger zone, protecting the compressor from overpressure damage. Replace it when the unit trips on a nuisance high-pressure fault or the switch fails to reset.
The OEM 0130M00074 is calibrated to the exact cut-out/cut-in pressure set points and fitting size your system requires — critical for a safety device. Our generic equivalent matches the trip range and connection at a lower price for out-of-warranty repairs; confirm set points before installing.
Difficulty: Moderate (3/5). Because this switch mounts on the refrigerant line, some units require recovery or use a Schrader-style port. Disconnect power, verify the port type, and torque fittings to spec. 30–45 minutes; EPA-certified handling required if the sealed system is opened.