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The Goodman 0130M00087 Low Pressure Switch is an OEM loss-of-charge safety control for the DBC3004VDDCAA air conditioner and matching Goodman/Amana outdoor units. It opens the compressor circuit when suction-side pressure drops below a safe threshold — guarding against compressor damage from low refrigerant charge, a restricted metering device, or a frozen evaporator coil.
The OEM Goodman switch is calibrated to the unit's engineered suction pressure window, so it protects the compressor without false trips on cold-weather start-up. Generic replacements are budget-friendly and fit the same port, but calibration and contact ratings can drift from spec — pick OEM when reliability is the priority.
Moderate (2/5). Requires refrigerant recovery or pump-down to remove the flare fitting. Recommend an EPA-certified HVAC technician. Disconnect power and confirm zero residual pressure before swapping the switch.