U3" Outdoor Unit; Check Operation Not Executed; U3" Outdoor Unit: Check Operation Not Executed - Daikin VRV III REYQ8PY1B Service Manual

Troubleshooting by Indication on the Remote Controller
U3
" " Outdoor Unit:
3.47
U3
Remote
Controller
Display
Applicable REYQ8P~48P
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
332

Check Operation not Executed

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 Outdoor
unit PC board?
YES
NO
SiBE37-701
Press and hold BS4 on the
outdoor master PC board for 5
seconds or more, or turn ON the
local setting mode 2-3 to conduct
a check operation.
Performs the chech operation
again and completes the check
operation.
When a leakage detection
function is needed, normal
operation of charging refrigerant
must be completed. And then,
start once again and complete a
check operation.
(V3052)
Troubleshooting