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The Goodman 0130M00075 is the factory low-pressure switch for the APH1642H41AA packaged heat pump. Installed in the compressor safety circuit on the suction side, it opens when refrigerant pressure drops too low — signaling a loss of charge, a leak, or a restricted metering device — and shuts the compressor down before it can run damaged. If your unit is short-cycling or locking out in cold weather, the low-pressure switch is a frequent culprit.
The OEM 0130M00075 is set to Goodman's specified low-side cut-out and reset pressures. Generic switches with mismatched setpoints can cause nuisance lockouts or leave the compressor unprotected during a leak. For safety-circuit components, choose OEM.
Moderate. Refrigerant-side connection may require recovery depending on the port. Best performed by an EPA-certified technician. Estimated time: 30–60 minutes.
Only certified technicians should open the refrigerant circuit.