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The Goodman 0130M00075 is a genuine OEM low pressure switch designed for the WPH4424AHAB packaged heat pump and compatible Goodman/Amana systems. It monitors refrigerant suction pressure and opens the control circuit when pressure drops too low — guarding the compressor against a loss of charge, a refrigerant leak, restricted airflow, or freeze-up conditions. Once pressure returns to a safe range, the switch resets automatically.
The factory 0130M00075 is calibrated to Goodman's exact cut-out and cut-in pressures, so it reliably protects the compressor without nuisance lockouts. Aftermarket alternatives frequently drift from spec, leading to short-cycling or unprotected operation. For consistent, safe performance, choose the genuine OEM switch.
Moderate — HVAC technician recommended. This switch ties into the sealed refrigerant circuit, so replacement usually requires refrigerant recovery, a brazed or fitted connection, evacuation, and recharge. An EPA-certified technician should perform the job. Always kill power at the disconnect before servicing.
Genuine Goodman quality, fast shipping, and the correct set points to keep your compressor protected.