Daikin VRV II-Q RQYQ8-48PY1B Service Manual page 112

Troubleshooting by Remote Controller
<Monitor mode>
To enter the monitor mode, press the
MODE (BS1) button when in "Setting
mode 1".
* Refer to P. 77 for Monitor mode.
<Selection of setting item>
Press the SET (BS2) button and set
the LED display to a setting item.
* Refer to P. 77 for Monitor mode.
<Confirmation of error 1>
Press the RETURN (BS3) button
once to display "First digit" of error
code.
<Confirmation of error 2>
Press the SET (BS2) button once to
display "Second digit" of error code.
<Confirmation of error 3>
Press the SET (BS2) button once to
display "error location".
<Confirmation of error 4>
Press the SET (BS2) button once to
display "master or slave 1 or slave 2
or slave 3" and "error location".
Press the RETURN (BS3) button and
switches to the initial status of
"Monitor mode".
* Press the MODE (BS1) button and
returns to "Setting mode 1".
102
Description of error
Inverter PCB abnormality
Inverter radiation fin temperature rise
Momentary overcurrent of INV.
compressor
Overcurrent abnormal of INV.
compressor
INV. compressor starting abnormality
Transmission system abnormality
(between INV. and main PCB)
Inverter over-ripple protection
INV. radiation fin thermistor and
related abnormality
Field setting abnormality after
replacing main PCB or combination
error of PCB
Refrigerant shortage
Reverse phase, open phase
Power supply insufficient or
instantaneous failure
Check operation is not completed.
Transmission error (between indoor
Detail
and outdoor units)
description
Transmission error (between remote
on next
controller and indoor unit)
page.
Transmission error (Across outdoor
units)
Improper combination of indoor and
outdoor units, indoor units and remote
controller
Transmission error (between
centralized controller and indoor unit)
System is not set yet
System, refrigerant system address
undefined
Error
Description of error (PGF)
Defective IPM
Current sensor error confirmation 1
Current sensor error confirmation 2
IGBT error
Overheat of INV. radiation fin
temperature
Electric thermal and others
Stall prevention
INV. transmission data abnormality
INV. transmission abnormality
Unbalanced INV. power supply
voltage
INV. fin thermistor abnormality
Defective combination of INV.
Reversed phase
Reversed phase (ON)
Insufficient INV. voltage
INV. open phase (single phase)
Abnormal charge of capacitor of INV.
main circuit
Test operation not carried out yet
IN-OUT transmission error
System error
Error caused when mounting the
external control adaptor for outdoor
unit
Alarm given when mounting the
external control adaptor for outdoor
unit
Error caused between the master and
the slave 1
Error caused between the master and
the slave 2
Defective address setting of slaves 1
and 2
Erroneous address of slaves 1 and 2
Excess indoor units connected
Connection of erroneous models of
indoor unit
Combination error of outdoor units
Unmatched wiring/piping
Wrong wiring (auto address error)
k
: ON
l
: Blink
h
: OFF
Service Diagnosis
SiBE341027
Error code
Remote
controller
L1
L4
L5
L8
L9
LC
P1
P4
PJ
U0
U1
U2
U3
U4
U5
U7
UA
UE
UF
UH