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The 0130M00075 is a genuine OEM low-pressure switch built for the Goodman/Amana APH1536M41AD package heat pump. Wired into the compressor control circuit, this switch provides loss-of-charge and freeze protection: it opens when suction pressure drops below the safe threshold — commonly from a refrigerant leak, restricted metering device, or low outdoor airflow in heating mode — and shuts the compressor down before it is damaged by running in a vacuum.
Genuine OEM switches are pressure-set at the factory to the specifications for this exact model, so protection engages at the right point every time. Generic replacements often use approximate setpoints that can cause short-cycling or fail to protect the compressor. Choosing OEM ensures a direct fit and reliable, long-term operation.
Easy (2/5). Replacement is a quick job for an HVAC technician — typically 10 to 15 minutes. Cut power at the disconnect, transfer the spade terminals, and confirm the switch reads closed at normal operating pressure before returning the unit to service.
Genuine Goodman reliability. Questions on fit? Reach us at info@nationalhvacparts.com.