Troubleshooting - Challenge MDN4-12DEN3-QA3 Instruction Manual

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
The unit doesn't operate
The dehumidifying
function doesn't work
No air is discharged
Operation is noisy
Possible Cause
Has the power cord
been
disconnected？
Is the tank full
indication blinking?
(the tank is full or in
a wrong position)
Is the temperature
of the room above
5℃ or below 35℃?
Is the air filter
clogged?
Is the intake duct or
discharge duct
obstructed?
Is the air filter
clogged?
Is the unit tilted or
unsteady?
Is the air filter
clogged?
9
Solution
Plug the power cord into
the outlet.
Empty the water in the
drainage tank and then
reposition the tank.
The tank is not
positioned correctly, pull
it out and push it in
again until the tank full
indicator goes off.
The protection device is
activated and the unit
cannot be started.
Clean the air filter as
instructions.
Remove the obstruction
from the discharge duct
or intake duct.
Clean the air filter as
instructions.
Move the unit to a
stable, sturdy location.
Clean the air filter as
instructions.