SiBE121135
Code Indication on Remote Controller
Service Diagnosis
269
4.4
Outdoor Unit
i
: ON,
h
: OFF,
j
: Blinks
Green : Blinks in normal condition
Red : OFF in normal condition
Note:
1. The error codes in the parenthesis ( ) are displayed only when the system is shut down.
2. When a sensor error occurs, check the remote controller display to determine which sensor
is malfunctioning.
If the remote controller does not indicate the error code, conduct the following procedure.
∗
Turn the power switch off and back on again. If the same LED indication appears again
immediately after the power is turned on, the fault is in the thermistor.
∗
If the above condition does not result, the fault is in the CT.
3. The indoor unit error code may take the precedence in the remote controller display.
4.
3-room models and 4-room models do not have LED5.
Outdoor Unit LED Indication
Error Codes
Description
Reference
Page
Green
Red
A
1
2
3
4
5
j
h
h
h
h
h
00
Normal condition
—
UA
Unspecified voltage (between indoor unit and outdoor
unit)
301
UH
Anti-icing function in other rooms
301
j
h
h
i
i
h
(
U0
)
Refrigerant shortage
296
j
i
h
h
i
h
U2
Low-voltage detection or over-voltage detection
298
j
h
i
i
i
h
U7
Signal transmission error (on outdoor unit PCB)
300
j
i
h
i
i
h
A5
Anti-icing function
302
j
i
i
i
h
h
E1
Outdoor unit PCB abnormality
304
j
i
h
i
h
h
(
E5
)
OL activation (compressor overload)
305
j
h
i
i
h
h
(
E6
)
Compressor lock
306
j
i
i
i
i
h
E7
DC fan lock
307
j
h
i
h
i
h
E8
Input overcurrent detection
308
j
i
h
i
h
h
F3
Discharge pipe temperature control
309
j
i
h
i
i
h
F6
High pressure control in cooling
310
j
i
i
h
h
h
H0
Compressor sensor system abnormality
311
H6
Position sensor abnormality
313
H8
CT or related abnormality
315
H9
Outdoor temperature thermistor or related
abnormality
317
J3
Discharge pipe thermistor or related abnormality
317
J6
Outdoor heat exchanger thermistor or related
abnormality
317
J8
Liquid pipe thermistor or related abnormality
317
J9
Gas pipe thermistor or related abnormality
317
P4
Radiation fin thermistor or related abnormality
317
j
i
i
h
i
h
L3
Electrical box temperature rise
319
j
h
h
h
i
h
L4
Radiation fin temperature rise
321
j
h
h
i
h
h
L5
Output overcurrent detection
323