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The Goodman 0130M00075 Low Pressure Switch is a genuine OEM safety control for the APH1424H41DB R-410A package heat pump. Installed on the suction (low) side of the refrigerant circuit, it opens the compressor control circuit when suction pressure drops too low — signaling a loss of charge, leak, or restricted flow. This loss-of-charge protection prevents the compressor from running dry and burning out under vacuum.
This factory OEM switch is set to the precise low-side thresholds Goodman engineered for the APH1424 circuit. Generic substitutes may trip at the wrong pressure and either lock out a healthy system or fail to catch a real leak. OEM ensures correct setpoints and a proper fitting/connector match.
Rating: Moderate. Often mounts to a Schrader-style port allowing replacement without recovery, though some are brazed. Kill power, verify the connection type, and rewire per the unit schematic. EPA 608 certification recommended if brazing is required.