Daikin REYQ72 - U3 Outdoor Unit: Check Operation Not Executed; Check Operation Not Executed

Troubleshooting by Indication on the Remote Controller SiUS39-602
178 Troubleshooting
2.45
“
U3
” Outdoor Unit:
Check Operation not Executed
Remote
Controller
Display
U3
Applicable
Models
REYQ72M, 96M
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
(V3052)
Has the
check operation
performed on Outdoor
unit PC board?
Press the BS4 on P.C. board on
the master outdoor unit for 5
seconds or more to execute check
operation.
Replace the main PC board 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.