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SiUS30-1301
Troubleshooting by Remote Controller
Service Diagnosis
147
2.6
Error Code Indication by Condensing Unit PCB
<Selection of setting item>
<Confirmation of error 1>
To enter the monitor mode, press
the MODE button (BS1) when in
“Setting mode 1”.
Press the SET button (BS2) and set
the LED display to a setting item.
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.
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”.
<Confirmation of error 3>
Press the SET button (BS2) once to
display “master or slave1 or slave2”
and “error location”.
∗
Refer to P.111 for Monitor mode.
∗
Refer to P.111 for Monitor mode.
Detail
description
on next
page.
Contents of error
Error code
Abnormal discharge pressure
HPS activated
E3
Abnormal suction pressure
Abnormal Pe
E4
Compressor lock
Detection of INV. compressor lock
E5
Over load, overcurrent, abnormal lock of
condensing unit fan motor
Instantaneous overcurrent of DC fan motor
Detection of DC fan motor lock
E7
Malfunction of electronic expansion valve
EV1
E9
EV3
Abnormal position signal of condensing unit fan
motor
Abnormal position signal of DC fan motor
H7
Defective sensor of outdoor air temperature
Defective Ta sensor
H9
Abnormality in water system
HJ
Abnormal discharge pipe temperature
Abnormal Td
F3
Abnormal heat exchanger temperature
Refrigerant overcharge
F6
Defective sensor of discharge pipe temperature
Defective Tdi sensor
J3
Defective sensor of heat exchanger gas pipe thermistor
Defective Tg sensor
J4
Defective sensor of suction pipe temperature
Defective Ts sensor
J5
Defective sensor of receiver temperature
Defective Tl sensor
J7
Defective sensor of subcooling heat exchanger temperature Defective Tsh sensor
J9
Defective sensor of discharge pressure
Defective Pc sensor
JA
Defective sensor of suction pressure
Defective Pe sensor
JC
Defective Inverter PCB
Defective IPM
L1
Defective Current sensor 1
Defective Current sensor 2
Abnormal DIP SW setting
Inverter radiation fin temperature rising
Over heating of inverter radiation fin temperature
L4
DC output overcurrent
Inverter instantaneous overcurrent
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 (Defective startup)
Abnormal waveform in startup
Out-of-step
Transmission error between inverter and
condensing unit
Inverter transmission error
LC
Open phase/Power supply imbalance
Imbalance of inverter power supply voltage
P1
Defective temperature sensor inside switch box
Defective thermistor of inverter box
P3
Defective temperature sensor of inverter
radiation fin
Defective thermistor of radiation fin
P4
Incorrect combination of inverter and fan driver
Incorrect combination of inverter and fan driver
PJ