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The Goodman 0130M00074 is a genuine OEM high-pressure cut-off switch for the CPC150XXX4BXXXAA air conditioner and compatible Goodman/Amana units. Wired into the safety circuit on the high (discharge) side of the refrigerant system, this switch opens to shut down the compressor if discharge pressure climbs into an unsafe range — protecting the compressor from damage caused by a dirty condenser coil, a failed fan, or an overcharge. A failed switch can cause nuisance trips or, worse, allow the system to run at dangerous pressures.
This safety component is calibrated to specific cut-out and cut-in pressures. The genuine Goodman switch carries the correct trip points, fitting size, and terminal style, so it protects the compressor exactly as the factory intended. Generic switches with different setpoints can trip early, fail to trip, or leak at the fitting. For a safety device, OEM is the responsible choice.
Moderate to Difficult — Many high-pressure switches thread onto a Schrader-style port and can be changed without recovering refrigerant, but some require system recovery and recharge. Refrigerant work is EPA-regulated. Unless your unit has a self-sealing port and you are experienced, this repair should be performed by an EPA-certified HVAC technician.