SiUS121736EA Check
Service Diagnosis 216
8.10 Installation Condition Check
Check No.17
8.11 Discharge Pressure Check
Check No.18
Installation condition check
OK
Check the allowable
dimensions of the air
suction and
discharge area.
Is the airflow blocked by
obstacles or winds
blowing in the opposite
direction?
(R19394)
NG
YES
YES
NO
Is the discharged air
short-circuited?
NO
NO
YES
Is the outdoor heat
exchanger very dirty?
Change the installation
location or direction.
Change the installation
location or direction.
Clean the outdoor heat
exchanger.
Change the installation
location or direction.
Check the outdoor temperature.
(The outdoor temperature
should be within the operation
range.)
(R21121)
YES
YES
YES
NO
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
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