Troubleshooting by Indication on the Remote Controller
330
Troubleshooting
YES
NO
Is a
single unit
installed?
Procure the
correct model of
unit.
YES
The
connection
wiring of multi
outdoor units is broken
or disconnected.
Correct the
connection
wirings.
NO
Replace the
outdoor unit main
PCB.
Diagnosis Flow 4
Check 3
Check 4
Is the
model BS unit
connected?
NO
YES
Connect the BS
unit.
Replace the
outdoor unit PCB
concerned.
Check 3
Check 4
Diagnosis Flow 5
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.