Challenge Portable AC Error Codes


E1– Room temperature sensor error- Unplug the unit and plug it back in. If error repeats, call for service.

E2– Evaporator temperature sensor error- Unplug the unit and plug it back in. If error repeats, call for service.

E4– Display panel communication error- Unplug the unit and plug it back in. If error repeats, call for service.

Protection codes:

P1– Bottom tray is full – Connect the drain hose and drain the collected water away. If error repeats, call for service

NOTE: When more than one codes occur, the priority of the code display order is: E4–E2–E1–P1.

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Unit does not Start when Pressing on/off ButtonĀ 

– P1 appears in the display window/Drain the water in the bottom tray.

– Room temperature is lower than the set temperature.(Cooling mode)/Reset the temperature.

Not cool enough

– The windows or doors in the room are not closed./Make sure all the windows and doors are closed.

– There are heat sources inside the room./Remove the heat sources if possible.

– Exhaust air duct is not connected or blocked./Connect the duct and make sure it can function properly.

– Temperature setting is too high./Decrease the set temperature.

– Air filter is blocked by dust./Clean the air filter.

 


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