Troubleshooting by Remote Controller
Troubleshooting
Caution
CHECK 12
Check for
inadequate refrigerant.
Is the
refrigerant level
proper?
Check the transmission
wiring and piping
between the indoor and
outdoor units.
Is
wiring and
piping connection
matched?
CHECK 11
CHECK 12
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
NO
YES
Refer to P.477.
Refer to P.478.
Si20-701_B
Collect
refrigerant and
recharge a
proper amount of
refrigerant after
vacuum drying.
Match wiring and
piping
connection.
Check the
refrigerant piping
system for
clogging.
CHECK 11
357