Troubleshooting - Daikin MCB50YSAU Installation & Operation Manual

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.
„ Noises
Phenomenon
A whistling and fluttering sound
during operation
The operating sound is loud
„ Indicator lamps
Phenomenon
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
The FAN lamps (" (Quiet)",
" (Low)", " (Standard)",
" (Turbo)") all blink at the same
time
• Is there a buildup of dust on the pre-filter?
¼ Clean it.
• Is the dust collection filter clogged up?
¼ Depending on usage conditions, the dust collection filter may become
clogged up, shortening its service life.
Replace the dust collection filter.
• Is the dust collection filter attached properly?
¼ If not attached properly, the sound may be loud.
• 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".
• 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.
[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.
Troubleshooting
Check
Please check again before requesting repairs.
Check points
Check points
►Page 17
►Page 6
►Page 18
►Page 18
►Page 13
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