Portable or window-type Sharp AC: unit stops; P4 displayed.

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, Dirty condenser coil, Failing condenser fan, High ambient temperature beyond design limit

Safety first: Unplug the unit before cleaning or removing covers.

Improve ventilation: Ensure the hot air exhaust hose (portable) or rear of the unit (window) is not blocked and has free airflow.
Clean condenser: Access and gently clean the condenser coil with a soft brush or vacuum.
Check fan operation: Confirm that the condenser fan runs when the compressor is on. If not, the fan motor may need replacement.
Ambient conditions: Avoid operating the unit in spaces hotter than the specified maximum ambient temperature.

Medium 3/5

Condenser Fan Motor

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