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The Goodman 0130M00075 Low Pressure Switch is a genuine OEM loss-of-charge safety control for the Goodman APH1530M41CA heat pump and compatible Goodman/Amana units. This normally-closed switch watches suction-line pressure and opens the control circuit when pressure drops too low — a sign of low refrigerant charge, a restricted metering device, or a frozen coil. By shutting the compressor down, it prevents the costly damage that comes from running a system that has lost charge.
Genuine OEM Goodman switches are set to the precise cut-out and cut-in pressures your unit expects, giving accurate protection without false trips on cold mornings. Generic switches with different setpoints can cause short-cycling or leave the compressor unprotected. OEM is the dependable choice for refrigerant safeties.
Moderate (3 of 5) — Mounted on the low-pressure side of the refrigerant circuit. A Schrader-port switch swaps quickly; a brazed connection requires EPA-certified recovery and evacuation. Disconnect power, move the wiring over, and leak-check on restart. Use a licensed technician when refrigerant handling is required.