SiEBE18-526 Troubleshooting for Outdoor Unit
Troubleshooting 319
7.24 Check Operation not Executed
Remote
Controller
Display
U3
Applicable
Models
AII outdoor unit models
Method of
Malfunction
Detection
Check operation is executed or not
Malfunction
Decision
Conditions
Malfunction is decided when the unit starts operation without check operation.
Supposed
Causes
Check operation is not executed.
Troubleshooting
(Q0443)
Has the
check operation
performed on Outdoor
unit PCB?
Press the BS4 on PCB on the
master outdoor unit for 5 seconds
or more to execute check
operation.
Replace the main PCB on the
outdoor unit.
NO
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
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