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Troubleshooting Based on Equipment Condition
Si21-205
128
Troubleshooting
1.7
Equipment discharges white mist.
Applicable Model
All models of SkyAir series
Error Detection
Method
Error Generating
Condition
Possible Cause
Humid installation site
Installation site is dirty and with dense oil mists.
Soiled heat exchanger
Clogged air filter
Malfunction of fan motor
Troubleshooting
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)
Is white fog coming
out from the unit?
Is the heat
exchanger of indoor
unit soiled?
Is the site
dusty or with dense
oil mist?
NO
NO
NO
Is the
airflow rate too small?
NO
NO
YES
YES
YES
YES
Is the room
temperature higher than
set value in cooling
operation?
YES
Continue unit operation.
It may be necessary to
remove the source of humid
condition.
Dust or oil mists should be
removed.
Possible causes as follows
∗
Clogged air filter
∗
Malfunction of fan motor
Did the trouble generate on
switching to heating mode
after complete of defrosting
during heating?
(S1996)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...