Daikin SkyAir Service Manual page 243

Troubleshooting by Remote Controller Display / LED Display
Check No.8
Clogged Points
Temperature differences must occur before or after the clogged points!
232
3
Indoor Unit
Check points Check factor
1 Around Temperature
expansion difference
mechanism
2 Accumulator Frosting
3 Distributor Temperature
difference
4 Field piping Temperature
difference
5 Stop valve Temperature
difference
1
4 5
2
RAC COMP
Outdoor Unit
Causes
Dust
Choked moisture
Reduced effective pipe
diameter due to adherent
contamination, etc.
Choked moisture
Dust
Choked moisture
Reduced effective pipe
diameter due to adherent
contamination, etc.
Collapsed pipe
The stop valve is not fully
open.
SiBE28-804
3
Remedies
Replace the
expansion valve.
Blow a nitrogen gas,
and then replace the
refrigerant.
Replace the heat
exchanger or
distributor.
Replace the pipe.
Open the stop valve
fully.
Troubleshooting