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The 0130M00074 is a genuine Goodman high-pressure cut-off switch, a direct-fit replacement for the APH1524M41AD package heat pump. Wired into the compressor safety circuit and mounted on the high-side (discharge) line, this switch opens to shut down the compressor if discharge pressure climbs to an unsafe level — protecting the compressor, coil, and refrigerant lines from over-pressure damage caused by a dirty condenser, blocked airflow, or overcharge.
The OEM switch is calibrated to Goodman's factory trip and reset pressure set-points with the correct connection port and terminals for the APH15 platform. Generic switches with different set-points or fittings can nuisance-trip or, worse, fail to protect the compressor. The genuine part guarantees the intended safety threshold.
Moderate to Advanced. Some versions thread onto a Schrader-style port allowing replacement without recovery; others are brazed into the line and require EPA-certified recovery and recharge. Always disconnect power first and verify the connection type on your unit. When in doubt, use a licensed HVAC technician.
Verified for fitment before shipment. Confirm your model and serial number with info@nationalhvacparts.com if needed.