Daikin VRV III REYQ8PY1 Service Manual page 239

Troubleshooting by Remote Controller
<Monitor mode>
To enter the monitor mode, push the
MODE (BS1) button when in
"Setting mode 1".
* Refer to Page 195 for Monitor mode.
<Selection of setting item>
Push the SET (BS2) button and set
the LED display to a setting item.
* Refer to Page 195 for Monitor mode.
<Confirmation of malfunction 1>
Push the RETURN (BS3) button
once to display "First digit" of
malfunction code.
<Confirmation of malfunction 2>
Push the SET (BS2) button once to
display "Second digit" of malfunction
code.
<Confirmation of malfunction 3>
Push the SET (BS2) button once to
display "malfunction location".
<Confirmation of malfunction 4>
Push the SET (BS2) button once to
display "master or slave 1 or slave 2"
and "malfunction location".
Push the RETURN (BS3) button and
switches to the initial status of
"Monitor mode".
∗ Push the MODE (BS1) button and
returns to "Setting mode 1".
228
Description of malfunction
Open phase and unbalanced power
supply
INV radiation fin temperature sensor
malfunction
Faulty combination of INV and fan
driver
Out of gas
Reversed phase
Abnormal power supply voltage
Test run not carried out yet
Faulty transmission between indoor
and outdoor units
Faulty transmission between outdoor
units
Detail
description
Faulty transmission with other
on next
systems
page.
Faulty field setting
Faulty system line
Faulty transmission with accessory
equipment
Unmatched wiring/piping, no system
settings
Malfunctions
Description of malfunction (PGF)
Unbalanced INV power supply voltage
INV fin thermistor malfunction
Faulty combination of INV
Out-of-gas alarm
Reversed phase malfunction
Reversed phase malfunction (ON)
Insufficient INV voltage
INV open phase (single phase)
Abnormal charge of capacitor of INV
main circuit
Test run not carried out yet
IN-OUT transmission malfunction
System malfunction
Malfunction caused when mounting
the external control adapter
Alarm given when mounting the
external control adapter
Malfunction caused between the
master and the slave 1
Malfunction caused between the
master and the slave 2
Multi REYQ models connected
Faulty address setting of slaves 1 and 2
4 or more outdoor units connected in
the same system
Erroneous address of slaves 1 and 2
Other system or other unit in the same
system
Excess indoor units connected
Erroneous refrigerant used for indoor
unit
Faulty combination of outdoor units
Faulty independent installation
Faulty connection of former BS unit
Faulty connection between outdoor
and BS unit
Faulty connection between BS units
Wrong number of indoor units
connected to BS unit
Wrong wiring (auto address error)
Multi level converter malfunction
Multi level converter alarm
Multi level converter data malfunction
Multi level converter transmission
malfunction
Unmatched wiring/piping
8 : ON
9 : Blink
1 : OFF
Si37-701
Malfunction
code
Remote
controller
P1
P4
PJ
U0
U1
U2
U3
U4
U7
U9
UA
UH
UJ
UF
Troubleshooting