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Si20-701_B
Troubleshooting by Remote Controller
422
Troubleshooting
NO
NO
Have
2 minutes and
over passed since
the "
U9
"code was
indicated?
Start operation of all the
indoor units.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Make judgement
again based on
the indication
after 2 minutes
and over have
passed.
YES
The
"
UA
" code
blinks in the
remote controller of
the other unit in the
same refrigerant
circuit.
Go on to the "
UA
"
troubleshooting
YES
The
"
A1
" code
blinks in the
remote controller of
the other unit in the
same refrigerant
circuit.
Go on to the "
A1
"
troubleshooting
YES
NO
The
"
A9
" code
blinks in the
remote controller of
the other unit in the
same refrigerant
circuit.
Go on to the "
A9
"
troubleshooting
YES
NO
A