Daikin VRV-WIII RWEYQ72PTJU Service Manual page 248

Troubleshooting by Indication on the Remote Controller
Troubleshooting
1: Check the correct wiring indoor-condensing and condensing-condensing by Installation
Note:
2: What is Auto Address?
240
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Is
electricity
being introduce for
the first time after
installation or after an indoor
or condensing unit
PCB has been
replaced?
NO
Is indoor -
condensing and
condensing - condensing
unit transmission wiring
normal? (*1)
YES
Press the RESET button on
the condensing unit PCB for
5 seconds.
Error is displayed
again?
YES
Disconnect
the
condensing-condensing
unit transmission wiring to
create the one-system status,
and then check whether
or not the system is
normal.
NO
UH
Does a " "
error occur for all indoor
units in the system?
YES
Manual.
This is the address automatically assigned to indoor units and condensing units after initial
power supply upon installation, or after executing rewiring (Keep pressing the
for more than 4 seconds).
Does an
error occur even
after 12 minutes
YES
elapses from the time when
electricity is introduced to
indoor and
condensing
units?
YES
NO
NO
YES
NO
SiUS30-1301
NO
Normal
After fixing the incorrect wiring,
press the RESET button on the
condensing unit main PCB for 5
seconds.
* The unit will not run for up to
12 minutes.
Normal
Install the DIII-NET extension
adaptor.
Replace the indoor unit PCB.
Replace the condensing unit
PCB.
RESET
Service Diagnosis
button