Daikin VRV-WIII RWEYQ72PTJU Service Manual page 157

SiUS30-1301
To enter the monitor mode, press
the MODE button (BS1) when in
"Setting mode 1".
∗ Refer to P.111 for Monitor mode.
<Selection of setting item>
Press the SET button (BS2) and set
the LED display to a setting item.
∗ Refer to P.111 for Monitor mode.
<Confirmation of error 1>
Press the RETURN button (BS3)
once to display "First digit" of error
code.
<Confirmation of error 2>
Press the SET button (BS2) once to
display "Second digit" of error code.
<Confirmation of error 3>
Press the SET button (BS2) once to
display "master or slave1 or slave2"
and "error location".
Press the RETURN button (BS3)
and switches to the initial status of
"Monitor mode".
∗ Press the MODE button (BS1) and
returns to "Setting mode 1".
Service Diagnosis
Refrigerant shortage
Reverse phase
Abnormal power supply voltage
No implementation of test-run
Transmission error between indoor and
condensing unit
Transmission error between condensing
units, transmission error between thermal
storage units, duplication of IC address
Transmission error of other system
Erroneous onsite setting
Faulty system function
Transmission error in accessory devices, conflict
in wiring and piping, no setting for system
Detail
description
on next
page.
Troubleshooting by Remote Controller
Contents of error
Refrigerant 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 error 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)
Abnormality multi level converter,
abnormality in conflict check
Error code
U0
U1
U2
U3
U4
U7
U9
UA
UH
UJ
UF
149