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The Goodman 0130M00075 Low Pressure Switch is a genuine OEM refrigerant safety control designed for CPC150XXX4BXXXAA commercial package air conditioning units and compatible Goodman/Amana 12.5-ton condensing systems. This automatic-reset switch monitors suction-line pressure and opens the control circuit if refrigerant pressure drops below the factory cut-out point, protecting the compressor from loss-of-charge, low-ambient operation, and liquid slugging.
This is a genuine Goodman OEM switch with factory-calibrated cut-in/cut-out setpoints matched to your unit's refrigerant charge and metering device. Generic universal switches often ship with a single fixed setpoint that may nuisance-trip or fail to protect the compressor. For warranty-sensitive commercial equipment, the exact-fit OEM part is the safest choice.
Replacement requires recovering or isolating refrigerant at the switch port and disconnecting low-voltage wiring. Always discharge the system safely, lock out power, and verify operation after recharging. We recommend installation by an EPA-certified HVAC technician.