Daikin VRV - WII Service Manual page 165

Troubleshooting by Remote Controller
To enter the monitor mode, push the
MODE button (BS1) when in
"Setting mode 1".
* Refer P.122 for Monitor mode.
<Selection of setting item>
Push the SET button (BS2) and set
the LED display to a setting item.
* Refer P.122 for Monitor mode.
<Confirmation of malfunction 1>
Push the RETURN button (BS3)
once to display "First digit" of
malfunction code.
<Confirmation of malfunction 2>
Push the SET button (BS2) once to
display "Second digit" of malfunction
code.
<Confirmation of malfunction 3>
Push the SET button (BS2) once to
display "master or slave1 or slave2"
and "malfunction location".
Push the RETURN button (BS3) and
switches to the initial status of
"Monitor mode".
∗ Push the MODE button (BS1) and
returns to "Setting mode 1".
152
Gas shortage
Reverse phase
Abnormal power supply voltage
No implementation of test-run
Transmission error between indoor and
outdoor unit
Transmission error between outdoor units,
transmission error between thermal storage
units, duplication of IC address
Transmission error of other system
Erroneous on-site setting
Faulty system function
Transmission error in accessory devices, conflict
in wiring and piping, no setting for system
Detail
description
on next
page.
Contents of malfunction
Gas shortage alarm
Reverse phase error
Insufficient inverter voltage
Inverter open phase (phase T)
Charging error of capacitor in inverter main circuit
I/O transmission error
O/O transmission error
Indoor unit system malfunction in other
system or other unit of own system
Abnormal connection with excessive
number of indoor units
Conflict of refrigerant type in indoor units
Incorrect wiring (Auto address error)
Malfunction of multi level converter,
abnormality in conflict check
SiUS30-604
Malfunction
code
U0
U1
U2
U3
U4
U7
U9
UA
UH
UJ
UF
Troubleshooting