22
English
Troubleshooting
Troubleshooting
Please check the following before requesting repairs or making an inquiry.
If there is still an abnormality, contact
your dealer or the customer service center
.
Not a problem
This case is not a problem.
Check
Please check again before requesting repairs.
Noises
Phenomenon
Check points
A whistling and fluttering sound
during operation
•
Is there a buildup of dust on the pre-filter?
¼
Clean it.
►
Page 17
•
Is the dust collection filter clogged up?
¼
Depending on usage conditions, the dust collection filter may become
clogged up, shortening its service life.
►
Page 6
Replace the dust collection filter.
►
Page 18
The operating sound is loud
•
Is the dust collection filter attached properly?
¼
If not attached properly, the sound may be loud.
►
Page 18
Indicator lamps
Phenomenon
Check points
The indicator lamps other than the
FAN/MODE/Filter replacement lamp
do not light up
The indicator lamps turn off about
10 seconds after operation start
•
Is the indicator lamp brightness set to “OFF”?
¼
If indicator lamp brightness is set to “OFF”, lamps other than the FAN/
MODE/Filter replacement lamps do not light up.
¼
If operation is started while the indicator lamp brightness is set to
“OFF”, the lamps are displayed with “DIM” brightness for about
10 seconds and then the brightness changes to “OFF”.
►
Page 13
The FAN lamps (“ (Quiet)”,
“ (Low)”, “ (Standard)”,
“
(Turbo)”) all blink at the same
time
•
Are the pre-filter and dust collection filter attached?
Lamps may blink when the components are removed and the unit is
operated.
[If a component is not attached]
¼
Unplug the power supply plug, reattach the components, and then
restart operation.
[If all components are attached]
An electrical component is malfunctioning.
¼
Contact your dealer or the customer service center.
•
Is there a buildup of dust on the pre-filter?
[If there is a buildup of dust]
¼
Unplug the power supply plug, clean the pre-filter, and then restart
operation.
►
Page 17
[If there is no buildup of dust]
An electrical component is malfunctioning.
¼
Contact your dealer or the customer service center.
•
Is the air outlet blocked?
[If the air outlet is blocked]
¼
Remove any obstacles blocking the air outlet, and then restart
operation.
[If the air outlet is not blocked]
An electrical component is malfunctioning.
¼
Contact your dealer or the customer service center.
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Summary of Contents for MCB50YSAU
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