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The Goodman 0130M00087 Low Pressure Switch is a genuine OEM suction-side safety control for CPC180XXX3BXXXAA condensing units and compatible Goodman/Amana R-410A systems. It provides loss-of-charge and freeze protection by opening the control circuit when suction pressure drops too low — preventing the compressor from running on a refrigerant leak, low charge, or restricted indoor airflow.
The genuine OEM Goodman switch is calibrated to the unit's exact cut-in/cut-out set points and built to factory diaphragm tolerances. Generic substitutes may carry close-but-not-identical pressure ratings, which can cause short cycling or missed leak protection. For reliable freeze/loss-of-charge protection, choose OEM.
Intermediate. Replacement on a Schrader port is straightforward; brazed connections require refrigerant recovery, EPA 608 certification, and a post-service leak check. Disconnect power before servicing. Professional installation recommended for refrigerant-side work.