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The Goodman 0130M00075 Low Pressure Switch is a genuine OEM safety control for the APH1524M41AC packaged heat pump. Installed on the suction (low) side of the refrigerant circuit, it opens the compressor circuit when suction pressure drops too low — usually from a refrigerant leak, loss of charge, or restricted flow — protecting the compressor from running dry and overheating. It resets automatically once pressure returns to a safe range.
Like its high-pressure counterpart, this switch is factory-calibrated to precise cut-out and cut-in setpoints. The genuine 0130M00075 delivers accurate loss-of-charge protection, while generic switches with mismatched setpoints can nuisance-trip in cold weather or fail to protect the compressor at all. For reliable low-side protection, OEM is the recommended choice.
Easy–Moderate (2/5). Mounts on a self-sealing Schrader port with negligible refrigerant loss; kill power, move the two spade terminals, and thread on the replacement. A quick job for a technician.