OEM Goodman Low Pressure Switch for CPC180XXX4BXXXAA — 0130M00087

The genuine OEM Goodman 0130M00087 Low Pressure Switch is the factory loss-of-charge and freeze-protection control for the CPC180XXX4BXXXAA air conditioner and compatible Goodman/Amana condensers. It monitors suction-side pressure and opens the compressor control circuit when low-side pressure drops too far — guarding the compressor against running on a low refrigerant charge, a restricted metering device, or evaporator icing.

Specifications

• Function: Low-side refrigerant pressure cut-out (loss-of-charge / freeze protection)
• Opens (cut-out): approximately 20 PSI
• Closes (cut-in): approximately 45 PSI
• Reset: Automatic
• Refrigerant: R-410A rated
• Connection: 1/4 in. SAE / spade terminals (model-specific)
• Fits: Goodman CPC180XXX4BXXXAA and compatible condensing units

OEM vs. Generic

The OEM switch arrives factory-set to Goodman's exact cut-in/cut-out pressures with the correct fitting, so it drops in without adapters or recalibration. Generic alternatives cost less but often use different trip points and may require fitting adapters, which can lead to nuisance compressor lockouts or missed low-charge protection. On a refrigerant safety circuit, OEM is the safer long-term value.

Install Difficulty: Moderate

Sealed-system component. Schrader-mounted versions swap quickly with power off; brazed-in versions require EPA-certified recovery and recharge. Always cut power and confirm pressures before servicing.