Specifications

SiBE341027 Troubleshooting by Remote Controller
Service Diagnosis 155
2.32 Check Operation is not Executed
Remote
Controller
Display
U3
Applicable
Models
RQYQ-PY1B
Method of Error
Detection
Check operation is executed or not
Error Decision
Conditions
Error is decided when the unit starts operation without check operation.
Supposed
Causes

Check operation is not executed.
Troubleshooting
Performs the check operation
again and completes the check
operation.
Has the check
operation performed
on outdoor unit PCB?
Press and hold BS4 on the
outdoor unit main PCB for 5
seconds or more to conduct a
check operation.
NO
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.