Troubleshooting by Remote Controller
CHECK 9
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
194
3
4
Indoor Unit
Check factor
Causes
Temperature
Dust
difference
Choked moisture
Reduced effective pipe
Frosting
Choked moisture
Temperature
Dust
difference
Choked moisture
Reduced effective pipe
Temperature
Collapsed pipe
difference
Temperature
The stop valve is not fully open.
difference
1
3
5
2
ACC
COMP
Outdoor Unit
diameter due to adherent
contamination, etc.
diameter due to adherent
contamination, etc.
ESIE15-13C
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.
Service Diagnosis