Check Operation Not Executed; U3" Check Operation Not Executed - Daikin VRV - WII Service Manual

Troubleshooting by Indication on the Remote Controller
"U3"
2.40

Check Operation not Executed

U3
Remote
Controller
Display
Applicable RWEYQ60, 72, 84MTJU
Models
Method of Check operation is executed or not
Malfunction
Detection
Malfunction Malfunction is decided when the unit starts operation without check operation.
Decision
Conditions
Supposed
Causes
Troubleshooting
212
Check operation is not executed.
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Has the
check operation
performed on Outside
unit P.C.B?
YES
NO
SiUS30-604
Press the BS4 on P.C. board on
the master outside unit for 5
seconds or more to execute check
operation.
Replace the main P.C. board on
the outside unit.
(V3052)
Troubleshooting