Dyras UHM-355B - Manual (Page 6)

EN
UHM-355B UHM-355B
10 11
If the amount of scale deposited becomes excessive, it may not be possible to remove it by normal descaling
methods. The warranty does not cover breakdown caused by scaling or maintenance carried out incorrectly.
Never touch the vibration membrane with hands or tools, and only use the brush supplied as an accessory to
clean it.
• Never use household scale remover or other caustic cleaning agents to clean the water holder or membrane.
If scale is present, rinse the water holder (10) with a solution made up of half tap water and half household
vinegar. (The household vinegar should have an acetic acid concentration of 20%). Leave the solution to soak
in the holder for half an hour. Take care not to let the vinegar-water solution get inside the appliance to the
electrical components. Do not let the descaling solution remain in the holder for longer than half an hour;
doing so could result in damage to the sealings. After descaling, rinse the water holder with clean water to
remove all traces of vinegar. If, after cleaning, the appliance is to be put into storage, let the water holder dry.
If the humidifier is going to be used soon, drying is not required.
• The removable water tank can be washed with hot liquid detergent. If scaling is present in the mist chamber,
rinse it with the above-mentioned vinegar solution. After cleaning, rinse the tank with water and dry it
completely.
Never use a solvent such as acetone, benzene, gasoline or alcohol, to clean the appliance. Such
solvents may dissolve the casing or get inside the humidifier, damaging the inner parts. Do not use
rough or abrasive cleaning agents.
• Before using the appliance again, let the outer casing become fully dry.
• If, after cleaning, the appliance will not be used for a long period of time, put it into a nylon bag and store it in
a place that is dust, humidity and frost free.
Simple troubleshooting
Defect symptom Possible cause Troubleshooting
No mist comes from the humidi-
fier, and the indicator lamp by the
mains switch is not alight
The mains plug is not properly
connected or the appliance is not
turned on
Connect the plug to the socket or
turn the appliance on
No mist comes from the humidi-
fier, and the indicator lamp by the
mains switch is lit red
The water tank is empty or is not
fitted properly to the machine
body, meaning that the dosing
valve is not properly connected
Fill up the tank according to the
instructions, check the position of
the water tank
The tank of a new appliance may
have an unpleasant smell to begin
with. This can be eliminated by
ventilating and rinsing the tank
Rinse the tank, then ventilate for
a few hours with the water inlet
mouth open. Fill the tank with
fresh water.
The tank is stale or the water in the
tank is polluted
Rinse the tank, then ventilate for
a few hours with the water inlet
mouth open. Fill the tank with
fresh water.
Arrange for a qualified engineer to
replace the blower
The water blower is defective,
The membrane is dirty Clean the membrane
The tank is not properly fitted to
the machine body
Check the fit of the tank
Not enough water in the tank Refill the tank with fresh water
The surface under the appliance
resonates
Place the appliance on a stable
table top or on the floor
The mist has an unpleasant smell
Only a small amount of mist is
emitted
The appliance is noisy