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Troubleshooting by Remote Controller
SiBE341027
100
Service Diagnosis
Error code indication by outdoor unit PCB
<Monitor mode>
To enter the monitor mode, press the
MODE (BS1) button when in “Setting
mode 1”.
<Selection of setting item>
* Refer to P. 77 for Monitor mode.
* Refer to P. 77 for Monitor mode.
Press the SET (BS2) button and set
the LED display to a setting item.
<Confirmation of error 1>
Press the RETURN (BS3) button
once to display "First digit" of error
code.
<Confirmation of error 2>
Press the SET (BS2) button once to
display "Second digit" of error code.
<Confirmation of error 3>
Press the SET (BS2) button once to
display "error location".
<Confirmation of error 4>
Press the SET (BS2) button once to
display "master or slave 1 or slave 2
or slave 3" and "error location".
Detail
description
on next
page.
Press the RETURN (BS3) button and
switches to the initial status of
“Monitor mode”.
* Press the MODE (BS1) button and
returns to “Setting mode 1”.
Error
Error code
Description of error
Description of error (PGF)
Remote
controller
PCB abnormality
Defective PCB
E1
Abnormal discharge pressure or field
piping pressure
HPS or PS activated
E2
High pressure abnormality
High pressure switch activated
E3
Actuation of low pressure sensor
Defective Pe
E4
Inverter compressor motor lock
INV compressor lock detected
E5
STD compressor motor overcurrent/
Lock
STD 1
E6
STD 2
Outdoor unit fan motor abnormality
Defective fan motor 1
E7
Defective fan motor 2
Electronic expansion valve coil
abnormality (Y1E-Y3E)
Y1E (Main)
E9
Y2E (Refrigerant charging)
Y3E (Subcool heat exchanger)
Abnormal discharge pipe temperature
Defective Td
F3
Refrigerant overcharge
Abnormal heat exchanger
temperature
F6
High pressure switch system
abnormality
H3
Abnormal outdoor fan motor signal
Fan motor 1 positioning signal
H7
Fan motor 2 positioning signal
Thermistor abnormality
Thermistor (Outdoor air)
H9
High pressure sensor abnormality
Defective high pressure sensor
J1
Current sensor abnormality
STD 1
J2
STD 2
Thermistor abnormality (discharge
pipe)
For INV. compressor
J3
For STD 1 compressor
For STD 2 compressor
Thermistor abnormality (suction pipe)
TsA sensor malfunction (short-
circuited)
J5
Thermistor abnormality (heat
exchanger deicer)
Tb sensor malfunction
J6
Thermistor abnormality (liquid pipe)
Tsc sensor malfunction
J7
TL sensor malfunction
Thermistor abnormality (receiver
liquid level, refrigerant regulator liquid
pipe, Receiver gas vent outlet)
Tf sensor malfunction
J8
Thermistor abnormality (subcooling
heat exchanger outlet)
Tsh sensor malfunction
J9
High pressure sensor abnormality
Defective high pressure sensor
JA
Low pressure sensor abnormality
Defective low pressure sensor
JC
k
: ON
l
: Blink
h
: OFF