Service Manual

SiUS091133 Check
Service Diagnosis 150
5.11 Discharge Pressure Check
Check No.18
5.12 Outdoor Fan System Check
Check No.19 DC motor
(R15738)
Not dirty
YES
YES
Dirty
NO
NO
NO
YES
Is the air
filter or indoor / outdoor
heat exchanger
dirty?
Is the connection pipe
deformed?
Is the stop valve open?
High?
Replace the compressor.
Open the stop valve.
Replace the pipe installed at
the site.
Clean the dirty air filter or
indoor / outdoor heat
exchanger.
Replace the compressor.
Discharge pressure check
(R15001)
YES
YES
NO
NO
Outdoor fan system is functioning.
Check the outdoor fan system.
Go to Check No. 16.
Outdoor fan running?
Fan motor
lead wire connector
disconnected?
Reconnect the connector.