List of Malfunction Code
Si30-408
104
Troubleshooting
Malfunction Code Display by Outdoor Unit PC Board
Contents of malfunction
Malfunction
code
Abnormal discharge pressure
HPS actuation
E3
Abnormal suction pressure
Abnormal Pe
E4
Compressor lock
Detection of INV compressor lock
E5
OC actuation
Detection of STD1 compressor lock
E6
Detection of STD2 compressor lock
Outdoor unit fan motor over load ·
over current · Abnormal lock of
outdoor unit fan motor
Instantaneous over current of DC fan
motor
E7
Detection of DC fan motor lock
Malfunction of electronic expansion
valve
EV1
E9
EV2
EV3
Abnormal position signal of outdoor
unit fan motor
Abnormal position signal of DC fan
motor
H7
Malfunction sensor for outdoor
temperature
Malfunction of Ta sensor
H9
Malfunction of sensor for thermal
storage unit
HC
Abnormality in water system of
thermal storage unit
HJ
Malfunction of transmission between
thermal storage unit and controller
HF
Abnormal discharge pipe
temperature
Abnormal Td
F3
Abnormal heat exchanger
temperature
Refrigerant over charging
F6
Malfunction of current sensor
Malfunction of CT1 sensor
J2
Malfunction of CT2 sensor
Malfunction of sensor for discharge
pipe temperature
Malfunction of Tdi sensor
J3
Malfunction of Tds1 sensor
Malfunction of Tds2 sensor
Malfunction of sensor for heat
exchange pipe
Malfunction of Tg1 sensor
J4
Malfunction of Tg2 sensor
Malfunction of sensor for suction
pipe temperature
Malfunction of Ts sensor
J5
Malfunction of sensor for heat
exchange temperature
Malfunction of Tb sensor
J6
Malfunction of sensor for receiver
temperature
Malfunction of Tl sensor
J7
Malfunction of sensor for oil pressure
equalizing pipe temperature
Malfunction of To sensor
J8
Malfunction of sensor for subcooled
heat exchanger temperature
Malfunction of Tsh sensor
J9
Malfunction of sensor for discharge
pressure
Malfunction of Pc sensor
JA
Malfunction of sensor for suction pressure Malfunction of Pe sensor
JC
Inverter radiation fin temperature
rise
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 waveform in startup
Out-of-step
Malfunction of transmission between
inverter and outdoor unit
Malfunction of inverter transmission
LC
To enter the monitor mode, press the
MODE button (BS1) when in "Setting
mode" 1.
Press the RETURN button (BS3) and
switches to the initial status of
"Monitor mode".
<Selection of Setting Item>
Press the SET button (BS2) and set
the LED display to the setting item.
<Confirmation of malfunction 1>
Press the RETURN button (BS3)
once to display "First digit" of
malfunction code in LED.
<Confirmation of malfunction 2>
Press the SET button (BS2) once to
display "Second digit" of malfunction
code in LED.
<Confirmation of malfunction 3>
Press the SET button (BS2) once to
display "master or slave 1 or slave 2"
and "malfunction location" in LED.
* Press the MODE button (BS1) and
returns to "Setting mode 1".
Monitor mode