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The Goodman 0130M00075 is a genuine OEM low-pressure switch for the Goodman/Amana APH1630M41AA heat pump. Installed on the suction (low) side of the refrigerant circuit, it protects the compressor from running under a loss-of-charge or low-suction condition — the leading cause of compressor overheating and failure. Symptoms of a bad switch include a compressor that won't start, short-cycling, or a low-pressure lockout code.
The OEM 0130M00075 is calibrated to Goodman's exact low-side trip and reset pressures. Generic substitutes with off-spec set points can allow the compressor to run dry or nuisance-trip in cold weather. For compressor protection, the exact-fit OEM switch is the safe choice.
Difficulty: Advanced. Mounted on the pressurized suction line. A sealed-port replacement requires refrigerant recovery and recharge by an EPA 608-certified technician. Always de-energize the unit and follow refrigerant-handling regulations before servicing.