Challenge MDN-12DMN3 User manual

12L DEHUMIDIFIER
INSTRUCTION MANUAL
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Thank you for selecting super quality dehumidifier. Please be sure to read this manual
carefully before using it. Keep the manual for future reference.
CAUTIONS
Please read the operating instructions carefully before using your dehumidifier for the first
time.
1. Install the appliance on flat and hard place to avoid occurrence of vibration and
noise.
2. Never immerse the appliance in water or other liquids.
3. Never operate the appliance if the cable or connector is damaged, or there is
something abnormal may happen.
4. Disconnect the appliance from power supply when it is not in use, or before relocating
or cleaning it.
5. Operate the appliance only at the voltage specified.
6. The appliance is for indoor use only, don’t use it for other purpose.
7. Do not put heavy objects on the appliance.
8. To prevent spilling, empty the water tank before restarting the appliance.
9. Do not put the unit close to heat-generating devices or near flammable and dangerous
materials, don’t tip the appliance to any side as spilt water could damage the appliance.
10. Never insert any slim rod and hard object into the unit body to avoid occurrence of
hazard or unit failure.
11. This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of the appliance by a person
responsible for their safety. Children should be supervised to ensure that they do not play
with the appliance.
Don’t try to repair, dismantle or remold such appliance, or it may make some damage.
Even if the supply cord is damaged, it must be replaced by the manufacturer or its service
agent or a similarly qualified person in order to avoid a hazard.
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PLACEMENT
When positioning the dehumidifier, ensure that it is placed on a level surface and that there
is a minimum of 10cm of space on either side of the unit to allow for efficient airflow.
We do not recommend the use of an extension lead, so please try tot ensure that the unit is
sufficiently close to a fixed main socket. If it is necessary to use an extension lead, please
ensure the diameter of the wires of the cable is at least 1 mm2.
When the dehumidifier is in operation, outside doors and windows should be closed when
necessary for most efficient use.
Allow at least 20cm of air space on all sides of the unit for good air circulation.
Please the unit away from the clothes, dryer, heater or radiator.
Make sure that there is no obstruction around the air inlet and the air outlet. The position of
the air inlet and outlet is as below:
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PARTS
1. ON/OFF Switch 2. Power indicator light
4
3
7
89
11
6
5
10
3. Water full indicator 4. Control panel
1
2 5.Watertank 6.PowerCord
7. Filter 8. Carry Handle
9. Air outlet grille 10. Continuous drainage hole
11. Caster
Operation
- Plug the unit into a correct mains socket.
- Press ON/OFF switch “(I)” once. The unit will start to work and the power indicator
light will illuminate.
- Press ON/OFF switch “(I)” again. The unit will stop and the power indicator light will
go off.
Note：
1. Do not use the machine when the temperature is over 35℃or below 5℃.
2. When the unit has been turned off, please wait for at least 3 minutes before turn it on
again. Fails to do this will damage the compressor.

DRAINAGE
While the water tank is full, the compressor will stop and the water full indicator light will
illuminate.
To remove the water tank, pull it out carefully from the unit.
After empting the water tank, place the tank back to the unit. Make sure it is properly
positioned, in order for the water full indicator light to go out and your dehumidifier is
operating.
Please note, in case, the water tank has not been positioned well, the water full indicator
light will still illuminate.
CONTINUOUS DRAINAGE
When the dehumidifier is operated at very high humidity levels, the water tank will require
more frequent drainage. In this situation, it may be more convenient to set the unit up for
continuous drainage with the following procedures:
1. Remove the water tank. Cut off the plastic cover located at drain hose outlet by a
scissor.
2. Prepare the water tube (not included) with 16mm internal diameter and 1.5mm
thickness. Connect to the continuous drainage hole. Ensure the water tube must be fixed
securely.
3. Put the water tank back to main body. Ensure the water will always drain away freely
and the tube will remain in right place & the water tank is in correct position.
NOTE : In very cold weather conditions, precaution should be taken to prevent the water
tube from freezing.
If it is no longer to use the continuous drainage, please follow the below procedures :
1. Remove the water tank.
2. Disconnect the water tube from the hole.
3. Put the water tank back to main unit.
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CLEANING
Always unplug the unit from the power supply before beginning cleaning to avoid
electric shocks.
Housing
- Use a soft, damp cloth to wipe the cabinet clean. Never use strong chemicals, oil-based
products, detergents, chemically treated cloths or other cleaning solution. These could
damage the cabinet.
Filter
- It is recommended to clean the air filter once every two weeks.
-Remove the water tank and extract the filter holder.
-Use a vacuum cleaner or tap the filter lightly to remove loose dust and dirt from the filter.
Rinse the filter frame thoroughly under running water.(Do not warmer than 40℃).
- Dry thoroughly before replacing.
- Do not expose the filter to sunlight.
WARNING: Never operate the dehumidifier without the filters.
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STORAGE
If not use the unit for an extended period of time. Please:
- Turn the unit off and unplug it from the mains.
- Completely empty the water tank and wipe it clean.
- Cover the unit and store where it will not receive direct sunlight.
TROUBLE SHOOTING
Never try to repair or dismantle the dehumidifier yourself. Incompetent repairs result in loss
of warranty and can endanger the user and the property.
Problem Possible Cause Solution
Has the power cord
been
disconnected？
Plug the power cord into
the outlet.
Is the tank full
indication blinking?
(the tank is full or in
a wrong position)
Empty the water in the
drainage tank and then
reposition the tank.
The unit doesn't operate
Is the temperature
of the room above
35℃or below 5℃?
The protection device is
activated and the unit
cannot be started.
Is the air filter
clogged? Clean the air filter as instructions.
The dehumidifying
function doesn't work Is the intake duct or
discharge duct
obstructed?
Remove the obstruction
from the discharge duct
or intake duct.
No air is discharged Is the air filter
clogged? Clean the air filter as instructions.
Is the unit tilted or
unsteady? Move the unit to a stable, sturdy location.
Operation is noisy Is the air filter
clogged? Clean the air filter as instructions.

TECHNICAL DATA
Model MDN-12DMN3
Mains 220-240V~/50Hz
Power W 320W
Ampere consumption A 1.5 A
Dehumidification capacity
(30℃RH 80%) L/24h 12 L/24h
Air volume(max) m³/h 85 m³/h
Refrigerant load g R134a/65g
Compressor QX42H
Thermostat ℃5℃-35℃
Recommended room size m2Up to 18 m2
Water tank L 1.5 L
Dimensions(W*H*D) mm 325*150*495mm
Weight Kg 8.5Kg
WASTE ELECTRICAL PRODUCTS SHOULD NOT BE DISPOSED OF WITH
HOUSEHOLD WASTE.PLEASE RECYCLE WHERE FACILITIES EXIST CHECK
WITH YOUR LOCALAUTHORITY FOR RECYCLING ADVICE.
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CONNECTION TO POWER
Before connecting, check that the voltage indicated on the appliance (bottom of the
appliance) corresponds with the main voltage in your home. If this is not the case,
consult your dealer and do not use.
This appliance may be fitted with a non-rewirable plug. If you need to change the fuse
in a non-rewirable plug, the fuse cover must be refitted. If the fuse cover is lost or
damaged, the plug must not be used until a replacement is obtained (available from the
appliance manufacturer).
If the plug has to be changed because it is not suitable for your socket, or becomes
damaged, it should be cut off and appropriate plug fitted following the wiring instructions.
The plug removed must be disposed of safely as insertion into a mains socket is likely
to cause an electrical hazard.
This unit must be earthed. This equipment must be disconnected from the mains when
not in use. Do not allow this unit to be exposed to rain or moisture.
For your own safety read the following instructions carefully before attempting
to connect this unit to the mains.
You should only plug the appliance into a 230V-240V AC, 50Hz supply. Connecting it to
other power sources may damage the appliance.
The wires in this mains lead are coloured in
accordance with the following code:
BLUE = NEUTRAL
BROWN = LIVE
GREEN + YELLOW = EARTH
IMPORTANT
The colours of the wires in the mains lead of this appliance may not correspond with the
coloured markings identifying the terminals in your plug, proceed as follows:
Caution
To prevent electric shock disconnect from
the mains before removing the cover
The blue wire must be connected to the terminal marked with the letter N or coloured
black.
The brown wire must be connected to the terminal marked with the letter L or coloured
red.
The green and yellow wire must be connecting to the terminal marked with the letter E
or the earth symbol. ( ).
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If a 13 Amp (BS1363) fused plug is used it must be fitted with a 13A fuse conforming to
BS1362 and be ASTA approved. If in doubt contact a qualified electrician.

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