Specifications

SiBE18-821 Troubleshooting for Outdoor Unit
Troubleshooting 333
7.28 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
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Has the
check operation
performed on Outdoor
unit PC board?
Replace the main PC
board on the outdoor unit.
(Q0577)
Press the BS4 on PC
board on the master
outdoor unit for 5 seconds
or more to execute check
operation.
NO
YES