Equipment Discharges White Mist - Daikin Sky Air B-Series R-410A Service Manual

Troubleshooting Based on Equipment Condition
1.7

Equipment discharges white mist.

Applicable Model All models of SkyAir series
Error Detection
Method
Error Generating
Condition
Possible Cause
Troubleshooting
128
Humid installation site
Installation site is dirty and with dense oil mists.
Soiled heat exchanger
Clogged air filter
Malfunction of fan motor
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the room
temperature higher than
set value in cooling
operation?
NO
Is the heat
exchanger of indoor
unit soiled?
NO
Is the site
dusty or with dense
oil mist?
NO
Is the
airflow rate too small?
NO
Did the trouble generate on
switching to heating mode
after complete of defrosting
during heating?
YES
Continue unit operation.
Is white fog coming
out from the unit?
YES
It may be necessary to
remove the source of humid
condition.
YES
YES
Dust or oil mists should be
removed.
Possible causes as follows
YES
∗ Clogged air filter
∗ Malfunction of fan motor
Si21-205
NO
Normal
Remove the source of humid
condition.
Cleaning of heat exchanger
is necessary.
Remove the source of oil
mist or dust.
Cleaning of air filter
Check fan motor
(Refer error code "A6")
Normal
(Fog is generated due to
defrosting operation)
(S1996)
Troubleshooting