Daikin SkyAir GQI-Eco Series Service Manual page 185

SiBE281013
CHECK 10
Clogged Points
Temperature differences must occur before or after the clogged points!
Check points
1 Around
expansion
mechanism
2 Accumulator
3 Distributor
4 Field piping
5 Stop valve
Service Diagnosis
3
4
Indoor Unit
Check factor Causes
Temperature
difference
Frosting
Temperature
difference
Temperature
difference
Temperature
difference
Troubleshooting by Remote Controller
1
3
5
2
ACC COMP
Outdoor Unit
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.
Remedies
Replace the electronic
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.
175