OEM Goodman Low Pressure Switch for APH1448M41AA Heat Pump — 0130M00075

The Goodman 0130M00075 Low Pressure Switch is a genuine OEM safety control for the APH1448M41AA heat pump and compatible Goodman/Amana R-410A units. Installed on the suction (low-side) line, this switch opens the compressor circuit when suction pressure drops too low — the classic sign of a refrigerant leak or loss-of-charge condition. By cutting power before the compressor runs starved of refrigerant, it prevents overheating and bearing damage, then resets automatically once pressure recovers.

• OEM Part Number: 0130M00075
• Type: Low-side pressure cut-out switch (normally closed)
• Approx. Trip / Reset: ~50 PSI open / ~100 PSI reset (R-410A)
• Fits Model: APH1448M41AA (Goodman heat pump)
• Connection: Quick-connect spade terminals
• Fitting: Suction-line refrigerant port

OEM vs. Generic

Loss-of-charge protection only works when the set-points match the system design. The OEM 0130M00075 is factory-calibrated for this Goodman unit, while generic substitutes often use different cut-in pressures that either nuisance-trip in cold weather or fail to catch a slow leak. Use the exact part for reliable protection.

Installation

Difficulty: Moderate (Intermediate). If the switch mounts on a Schrader-style port it may be swapped without full recovery; otherwise EPA 608 recovery and evacuation are required. Kill power at the breaker, move wiring one lead at a time, and leak-check the fitting afterward. Confirm the system holds charge before returning it to service.