Check No.8 - Clogged Points - Daikin ESIE13-02 Service Manual

Additional Checks for Troubleshooting
6.8

Check No.8 - Clogged Points

1
3
4
5
Part 4 – Troubleshooting
Temperature differences must occur before or after the clogged points!
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.
158
ESIE13-02
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.