(c) Error code, stop code table
0
Normal
Can not receive signals for 35
seconds
(if communications have recovered)
Power source is faulty.
Power source cables and signal lines are improperly wired.
Indoor or outdoor sub PCB are faulty
.
Cooling overload operation.
Outdoor unit fan speed drops.
Outdoor heat exchanger sensor is short circuit.
Refrigerant is insufficient.
Discharge pipe sensor is faulty.
Service valve is closed.
Outdoor air temperature sensor wire is
disconnected.
Connector connections are poor.
Outdoor main PCB is faulty
.
Suction pipe sensor wire is
disconnected.
Connector connections are poor.
Outdoor sub PCB is faulty.
Discharge pipe sensor wire is
disconnected.
Connector connections are poor.
Outdoor main PCB is faulty
.
Compressor lock.
Compressor wiring short circuit.
Compressor output is open phase.
Outdoor main PCB is faulty
.
Service valve is closed.
Electronic expansion valve is faulty.
Compressor is faulty.
Defective active filter.
Outdoor fan motor is faulty.
Connector connections are poor.
Outdoor main PCB is faulty.
Outdoor main PCB is faulty
.
Power transistor is damaged.
Service valve is closed.
Refrigerant is insufficient.
Refrigerant is overcharge.
Compressor lock.
Overload operation.
Compressor wiring is disconnected.
Power transistor is damaged.
Power source construction is defective.
Outdoor main PCB is faulty
.
Compressor is faulty
.
Compressor is faulty.
Compressor output is open phase.
Electronic expansion valve is faulty.
.
.
.
Overload operation.
Outdoor main PCB is faulty
.
Connection lines are faulty.
Indoor or outdoor sub PCB are faulty.
.
.
.
.
.
.
Heating overload operation.
Indoor unit fan speed drops.
Indoor heat exchanger sensor is short circuit.
Defective drain pump (DM).
broken drain pump wire
Anomalous float switch operation
Defective indoor PCB faulty
Refrigeration cycle system
protective control
Heating high pressure control
Short circuit in the power
transistor (high side)
Current cut circuit breakdown
OFF
05
5-time
flash
Cooling high pressure control
35
5-time
flash
5-time
flash
51
1-time
flash
Current cut
42
45
2-time
flash
V
Compressor wiring is unconnection
oltage drop
59
9-time
flash
Compressor overheat 115°C
36
6-time
flash
Outdoor heat exchanger sensor wire is
disconnected.
Connector connections are poor.
Outdoor main PCB is faulty
.
Outdoor heat exchanger sensor
is abnormal
37
7-time
flash
86
Drain trouble
87
6-time
flash
7-time
flash
Active filter voltage error
Anomalous outdoor sub
PCB commuication
Outdoor sub PCB fauly.
Poor connection of wire between
outdoor sub PCB-main PCB.
47
7-time
flash
57
7-time
flash
Suction pipe sensor
is abnormal
53
3-time
flash
High humidity condition.
Humidity sensor is faulty.
Anti-condensation prevention control is operating.
Anti-condensation control
84
4-time
flash
Outdoor air temperature sensor
is abnormal
38
8-time
flash
Outdoor unit's fan motor is
abnormal
48
8-time
flash
Current safe
58
8-time
flash
Connection lines between the
indoor and outdoor units are
faulty
61
1-time
flash
Discharge pipe sensor is
abnormal (anomalous stop)
39
9-time
flash
Rotor lock
60
OFF
(5 times)
(3 times)
(3 times)
(3 times)
(2 times)
(4 times)
Number of flashes when in
service mode
RUN
light
(10's digit)
TIMER
light
(1's digit)
Stop code
or
Error code
Error content
Cause
Occurrence conditions
Error
display
Auto
recovery
OFF
3-time
flash
5-time
flash
6-time
flash
8-time
flash
4-time
flash
(2 times)
(2 times)
(3 times)
(3 times)
(3 times)
When high pressure control operates during heating
operation and the compressor stops.
If the float switch OPEN is defected for 3 seconds
continuously or if float switch connector or wire
is disconnected.
Indoor unit fan speed drops.
Indoor heat exchanger sensor is broken wire
Anti-frost control
85
5-time
flash
When the anti-frost control operates and the compressor
stops during cooling operation.
When 10 seconds passes after the power is turned on
without communications signals from the indoor or
outdoor unit being detected correctly.
When the current is 1A or less at the time the
compressor started.
When the power source voltage drops during operation.
Indoor heat exchanger sensor wire is
disconnected.
Connector connections are poor
Indoor heat exchanger sensor
is abnormal (anomalous stop)
82
2-time
flash
When a temperature of –28°C or lower is sensed
continuously for 40 minutes during heating operation.
(the compressor stops).
Indoor fan motor is faulty
Connector connections are poor
Indoor PCB is faulty
Indoor unit's fan motor is
abnormal
80
OFF
When the indoor unit's fan motor is detected to be running
at 300 (SRF : 150) min
-1
or lower speed with the fan motor
in the ON condition while the air-conditioner is running.
Indoor or outdoor sub PCB are faulty
Noise is causing faulty operation.
Serial transmission error
62
2-time
flash
When 7 minute 35 seconds passes without
communications signals from either the outdoor unit or
the indoor unit being detected correctly.
After the compressor starts, when the compressor stops
due to rotor lock.
When there is a current safe stop during operation.
When it is judged that the power transistor was
damaged at the time the compressor started.
When a fan speed of 75 min
-1
or lower continues for 30
seconds or longer.
When refrigeration cycle system protective control
operates.
When the wrong voltage connected for the power source.
When the outdoor main PCB is faulty.
Compressor start fails 42 times in succession and the
reason for the final failure is current cut.
Communication error for 15 minutes: Detected more than
15 seconds 4 times.
When 35 seconds passes without
communications signals from either the outdoor unit or
the indoor unit being detected correctly.
–55°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after intial detection of this anomalous
temperature.
Or–55°C higher is detected for 5 seconds continuously
within 20 seconds after power ON.
–55°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after intial detection of this anomalous
temperature.
Or–55°C higher is detected for 5 seconds continuously
within 20 seconds after power ON.
–25°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after intial detection of this anomalous
temperature.
–55°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after intial detection of this anomalous
temperature.
Or–55°C higher is detected for 5 seconds continuously
within 20 seconds after compressor ON.
When the discharge pipe sensor's value exceeds the set
value.
When the outdoor heat exchanger sensor's value exceeds
the set value.
Models SCM71, 80
-
209
-
'17 • SCM-T-225
