Codes displayed on portable AC panel.  Not all codes indicate an error, some are just informative.

Lt -  Low Temperature  The appliance is fitted with a frost protection device to avoid excessive formation of ice. The appliance starts up again automatically when the defrost process is completed.  If issue persists unplug AC for about 30 minutes to allow frost to melt.

PF  - Probe Failure  Unplug AC for 5 minutes and plug back in again.   If issue persists appliance may require service.

Ft -  Full Tank  Tank reservoir is full. Unplug AC and drain water from internal tank.

AS - Room temperature sensor Unplug AC for 5 minutes and plug back in again.   If issue persists appliance may require service.

ES -   Pipe temperature sensor Unplug AC for 5 minutes and plug back in again.  If issue persists appliance may require service.

P1 -  Full tank Tank reservoir is full. Unplug AC and drain water from internal tank.

Dh -  Dehumidifier Mode Appliance is set to dry mode, exhaust hose is required to be attached in this mode.