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PROBLEM

CAUSE

SOLUTION

Dehumidifier 

does not operate

No power to appliance.

Connect plug to power 

outlet.

Power not turned on.

Switch power on.

E4 error is displayed.

Check drainage flow.

Dehumidifier 

collects little/no 

water

Insufficient working time Allow more working time
Filter is blocked

Clean filter

Low ambient 

temperature

Increase ambient 

temperature

Condensate hose is 

blocked

Check hose for 

restrictions

Difference between set 

humidity and current 

actual humidity is 

minimal

Adjust humidity setting to 

a lesser setting

Humidity is too low for 

the unit to run.

No need to run the unit.

Dehumidifier 

is operating 

but room is not 

drying

Doors and windows are 

open

Seal room from external 

areas by closing doors, 

windows, etc.

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