Malfunction Code Indication By Outdoor Unit Pcb - Daikin VRV - WII Service Manual

Troubleshooting by Remote Controller

Malfunction code indication by outdoor unit PCB

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".
150
Abnormal discharge pressure
Abnormal suction pressure
Compressor lock
Over load, over current, abnormal lock of
outdoor unit fan motor
Malfunction of electronic expansion valve
Abnormal position signal of outside unit fan motor Abnormal position signal of DC fan motor
Faulty sensor of outside air temperature
Abnormality in water system
Abnormal discharge pipe temperature
Abnormal heat exchanger temperature
Faulty sensor of discharge pipe temperature Faulty Tdi sensor
Faulty sensor of heat exchanger gas pipe thermistor Faulty Tg sensor
Faulty sensor of suction pipe temperature
Faulty sensor of receiver temperature
Faulty sensor of subcool heat exchanger temperature Faulty Tsh sensor
Faulty sensor of discharge pressure
Faulty sensor of suction pressure
Faulty Inverter PC board
Inverter radiation fin temperature rising
DC output over current
Electronic thermal switch
Detail
description
on next
page.
Stall prevention (Limit time)
Transmission error between inverter and
outdoor unit
Open phase/Power supply imbalance
Faulty temperature sensor inside switch box Faulty thermistor of inverter box
Faulty temperature sensor of inverter
radiation fin
Incorrect combination of inverter and fan driver Incorrect combination of inverter and fan driver
Contents of malfunction
HPS activated
Abnormal Pe
Detection of INV compressor lock
Instantaneous over current of DC fan motor
Detection of DC fan motor lock
EV1
EV3
Faulty Ta sensor
Abnormal Td
Refrigerant over charge
Faulty Ts sensor
Faulty Tl sensor
Faulty Pc sensor
Faulty Pe sensor
Faulty IPM
Faulty Current sensor 1
Faulty Current sensor 2
Abnormal DIPSW setting
Over heating of inverter radiation fin temperature
Inverter instantaneous over current
Electronic thermal switch 1
Electronic thermal switch 2
Out-of-step
Speed down after startup
Lightening detection
Stall prevention (Current increasing)
Stall prevention (Faulty startup)
Abnormal wave form in startup
Out-of-step
Inverter transmission error
Imbalance of inverter power supply voltage
Faulty thermistor of inverter fin
SiUS30-604
Malfunction
code
E3
E4
E5
E7
E9
H7
H9
HJ
F3
F6
J3
J4
J5
J7
J9
JA
JC
L1
L4
L5
L8
L9
LC
P1
P3
P4
PJ
Troubleshooting