Daikin RZQG71L9V1 Service Manual page 208

Skyair gqi-eco series heat pump r-410a 50hz smart serues, classic series
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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

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