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Check
SiUS041111
124
Service Diagnosis
5.10 Discharge Pressure Check
Check No.18
5.11 Outdoor Fan System Check
Check No.19
DC motor
Is the air
filter or indoor / outdoor
heat exchanger
dirty?
(R11718)
Replace the compressor.
Open the stop valve.
Replace the pipe installed at
the site.
Clean the dirty one.
Replace the compressor.
High?
Is the stop valve open?
Is the connection pipe
deformed?
Not dirty
Dirty
YES
NO
NO
YES
YES
NO
Discharge pressure check
(R7159)
Check the outdoor fan system.
Outdoor fan
system is
functioning.
Go to Check No. 15.
Reconnect the connector.
Outdoor fan running?
Fan motor lead
wire connector
disconnected?
YES
YES
NO
NO