English – TIMBERK THU UL 03 series User Manual
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9. Cleaning and maintenance
Before cleaning of the appliance, please, make sure that it is unplugged. 
Otherwise, it may result in electric shock.
Before cleaning, please, wait for complete cooling of water in grooves to 
avoid burning your hands.
Clean the appliance once or twice a week.
8.1. Wipe an external surface of the appliance with wet and soft cloth.
To avoid the electric shock, do not scratch and damage elements of the 
appliance, while cleaning.
Do not clean the appliance with solvent, gasoline, xylene, scrub brush, talc 
powder and other substances, except for water.
8.2. Wipe remaining water within the groove under the tank with wet and 
soft cloth.
Water remaining on small components may be wiped by a soft brush. Then 
clean these components with soft cloth.
8. . If the membrane is dirty, clean it with a soft brush.
8.4. Use a soft brush to wipe remaining water on the nozzle surface and then 
wipe it again with soft cloth.
8.5. Wash the water tank and diffuser with pure water. Wash the cover 
accurately and lightly. Otherwise, it will result in leaking of water through 
the cover.
After removing of water from the diffuser surface, wipe it with soft cloth. 
Clean the external surface of the appliance with wet and soft cloth.
ATTENTION!
To avoid deformation and abrasion of working surfaces, resulting in 
lowering of diffusion level or other defects, do not use metal 
brushes, razors or talc powder to wipe the nozzle surface.
In case of a heavy shock, the tank may leak.
In case of a water leak, stop the appliance operation immediately 
and apply to the service center.
To keep the appliance dry, remove water after cleaning and dry the 
water tank and the case.
Make sure that there is no water left within the water tank and the 
case.
Before a long pause in use of the appliance, please, dry the tank and 
the surfaces, install the tank into the case and pack the humidifier in 
a plastic bag, and then in a box. 
Keep the appliance in a room with low humidity.
Keeping of the appliance in undried condition may result in 
moldiness.
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10. Troubleshooting
In case of emergency, please, use the troubleshooting methods shown in 
tables. If it is impossible to solve problems with these methods, apply to the 
service center.
11. Utilization
Service life of the humidifier is 2 years.
At the end of its service life the humidifier should be utilized in accordance 
with regulations and procedures, which are in force at the place of 
utilization.
able 2.
Possible reason
The appliance works in 
soft mode (low diffusion 
frequency)
The diffuser is clogged
Too low temperature of 
water in the tank
Poor plugging
Sediments on the 
membrane
Stale water is used
There are residues of stale 
water or garbage in the 
groove for water or in the 
diffuser
Failure
Poor diffusion
(insufficient capacity)
No diffusion
White bloom on objects
around the appliance (salts
from water)
Steam with unpleasant
smell
Correction method
There is no failure.
If it is necessary to switch to heavy mode, turn the
controller knob to the extreme right position.
Clean the diffuser
Set the maximum capacity. After a while, the
humidifier capacity will increase
Plug the appliance accurately
Clean the membrane with a special brush
Clean the appliance in accordance with cleaning and
maintenance instructions and fill it with fresh water
