![background image](http://html1.mh-extra.com/html/ufesa/dh4020/dh4020_instruction-manual_3237316023.webp)
SELECTED ISSUES AND POSSIBLE SOLUTIONS
Issue
Possible cause
Solution
The appliance
does not start.
The dehumidifier is not connected to the
power outlet.
Check whether the power cord plug is
properly connected to a wall outlet.
Power outage.
The appliance will start when the power is
restored. In this case, a safety device delays
the start of the dehumidifier for three
minutes, in order to protect the compressor
against overloading.
The water tank is incorrectly installed or
removed.
Carefully install the water tank.
Water tank is overfilled.
In this case, the appliance is turned off
automatically. Empty the water tank and
install it correctly.
The set humidity level has been reached.
In this case, the appliance is turned off
automatically. Change the set humidity
level to lower if needed.
The appliance
insufficiently
dehumidifies
the air.
The appliance had too little time to reduce
humidity in the room.
Allow sufficient time for the appliance to
dehumidify the room to the required level.
On first use, the appliance must operate
continuously for at least 24 hours, in order
to obtain the desired level of air humidity.
The set humidity level is insufficient.
In order to achieve better air dehumidification
results, set a lower humidity level in
percent (%) or select a continuous mode
that provides maximum dehumidification
performance.
Airflow is limited.
Remove the curtains, furniture or other items
obstructing the air inlet or outlet grilles.
Doors and windows were not tightly closed.
Close all doors, windows and other
openings in the room.
A dirty air filter.
Clean the air filter.
The room temperature is too low.
Operating temperature range: 5-35°C.
Other appliance, for example tumble dryer
blows humid air into the room.
Place the dehumidifier away from the
appliances the blow humid air in.
Water flows onto
the floor.
When draining the condensate using the
water tank, a drain tube is connected.
Disconnect the condensate drain tube and
insert the plug into the drain opening.
Drain tube connection is not tight.
Check the drain tube connection to the
drain opening for leaks.
Frost appear on
the coils.
This is normal.
See:
AUTOMATIC DEFROST FUNCTION
.
Summary of Contents for DH4020
Page 61: ...24 35 5 2002 96 EC...
Page 62: ...P1 P2 AS E3 ES EC...
Page 63: ...3 10 11 12 4 2 3 7 5 5 30 10 14 9 1 M 10 2 3 4 5 13 5 7 2 10 3 13 14...
Page 64: ...8 P2 3 5 8 P2 5 1 2 3 K 3 13 5 12 1 13 5 2 11 L...
Page 67: ...13 1 5 P2 8 F on off 2 J G C D E modo B 5...
Page 69: ...AC 5 50 LWA 35 5 80 30 20 135 52 3 150...
Page 70: ...UFESA 8 AR...