Daikin VRV - WII, Service Manual

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Troubleshooting by Remote Controller SiUS30-604
150 Troubleshooting
Malfunction code indication by outdoor unit PCB
<Selection of setting item>
<Confirmation of malfunction 1>
To enter the monitor mode, push the
MODE button (BS1) when in
“Setting mode 1”.
Push the SET button (BS2) and set
the LED display to a setting item.
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.
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”.
<Confirmation of malfunction 3>
Push the SET button (BS2) once to
display “master or slave1 or slave2”
and “malfunction location”.
* Refer P.122 for Monitor mode.
* Refer P.122 for Monitor mode.
Detail
description
on next
page.
Contents of malfunction Malfunction
code
Abnormal discharge pressure HPS activated E3
Abnormal suction pressure Abnormal Pe E4
Compressor lock Detection of INV compressor lock E5
Over load, over current, abnormal lock of
outdoor unit fan motor
Instantaneous over current of DC fan motor
Detection of DC fan motor lock
E7
Malfunction of electronic expansion valve EV1 E9
EV3
Abnormal position signal of outside unit fan motor Abnormal position signal of DC fan motor H7
Faulty sensor of outside air temperature Faulty Ta sensor H9
Abnormality in water system HJ
Abnormal discharge pipe temperature Abnormal Td F3
Abnormal heat exchanger temperature Refrigerant over charge F6
Faulty sensor of discharge pipe temperature Faulty Tdi sensor J3
Faulty sensor of heat exchanger gas pipe thermistor Faulty Tg sensor J4
Faulty sensor of suction pipe temperature Faulty Ts sensor J5
Faulty sensor of receiver temperature Faulty Tl sensor J7
Faulty sensor of subcool heat exchanger temperature Faulty Tsh sensor J9
Faulty sensor of discharge pressure Faulty Pc sensor JA
Faulty sensor of suction pressure Faulty Pe sensor JC
Faulty Inverter PC board Faulty IPM L1
Faulty Current sensor 1
Faulty Current sensor 2
Abnormal DIPSW setting
Inverter radiation fin temperature rising
Over heating of inverter radiation fin temperature L4
DC output over current
Inverter instantaneous over current L5
Electronic thermal switch
Electronic thermal switch 1 L8
Electronic thermal switch 2
Out-of-step
Speed down after startup
Lightening detection
Stall prevention (Limit time) Stall prevention (Current increasing) L9
Stall prevention (Faulty startup)
Abnormal wave form in startup
Out-of-step
Transmission error between inverter and
outdoor unit Inverter transmission error LC
Open phase/Power supply imbalance Imbalance of inverter power supply voltage P1
Faulty temperature sensor inside switch box Faulty thermistor of inverter box P3
Faulty temperature sensor of inverter
radiation fin Faulty thermistor of inverter fin P4
Incorrect combination of inverter and fan driver Incorrect combination of inverter and fan driver
PJ