Daikin VRV III REYQ8PY1 Service Manual page 324

Si37-701
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Continued from the previous page
( In Check 4, LED )
lamp indicates as follows:
Start operation of all the indoor
units.
Check if all the units
U9
indicate " ".
YES
Check if more than
2 minutes passed since
U9
" "was indicated.
YES
Troubleshooting by Indication on the Remote Controller
NO
NO
Continue operation.
Make a diagnosis again based on
the indication in 2 minutes and
over.
The indoor units PC board
U9
indicating " " are normal.
Check the indoor units in the other
circuits to diagnose failure
according to the corresponding
malfunction codes.
313