High pressure or refrigerant system protection error; E19 displayed, compressor may shut off

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Blocked condenser airflow, Failed condenser fan, Overcharged refrigerant, Restricted capillary tube or drier

Safety First: Unplug the unit. Refrigerant work must be done by a certified technician.

Owner-level checks:

Clean condenser: Thoroughly clean the condenser coil and ensure the fan is operating.
Check ventilation: Confirm adequate clearance around the unit and that no grills are blocked.
Reset: Some Arktic models have an automatic reset; others require power cycling after cooling down.

If E19 persists: A technician should check system pressures, high pressure switch, and for restrictions or overcharge.

Professional Required 5/5

High Pressure Switch

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