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The Goodman 0130M00075 is a genuine OEM low-pressure switch for the WPH4336AMAB packaged heat pump and compatible Goodman/Amana units. This safety control opens the circuit when refrigerant suction pressure drops too low — guarding the compressor against damage from loss of charge, a refrigerant leak, or a blocked metering device. If your system short-cycles or the compressor won't engage, a tripped low-pressure switch is a common culprit.
Our genuine Goodman switch arrives factory-set to the exact low-side trip points your system expects. Generic substitutes with different calibration can mask a real refrigerant problem or trigger false lockouts. For dependable compressor protection, the OEM part is the reliable choice.
Moderate — best performed by an HVAC technician. Requires proper handling of the refrigerant circuit, disconnecting the switch leads, and a leak-free reinstall. Power off the unit before servicing. EPA certification is generally required for refrigerant-side work.