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SiBE121021_C
Code Indication on Remote Controller
Service Diagnosis
307
4.3
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 and outdoor units)
UH
Anti-icing function in other rooms
j
h
h
i
i
h
(
U0
)
Refrigerant shortage
j
i
h
h
i
h
U2
Low-voltage detection or over-voltage detection
j
h
i
i
i
h
U7
Signal transmission error (on outdoor unit PCB)
j
i
h
i
i
h
A5
Anti-icing function
j
i
i
i
h
h
E1
Outdoor unit PCB abnormality
j
i
h
i
h
h
(
E5
)
OL activation (compressor overload)
j
h
i
i
h
h
(
E6
)
Compressor lock
j
i
i
i
i
h
E7
DC fan lock
j
h
i
h
i
h
E8
Input overcurrent detection
j
i
h
i
h
h
F3
Discharge pipe temperature control
j
i
h
i
i
h
F6
High pressure control in cooling
j
i
i
h
h
h
H0
Compressor sensor system abnormality
H6
Position sensor abnormality
H8
CT or related abnormality
H9
Outdoor temperature thermistor or related
abnormality
J3
Discharge pipe thermistor or related abnormality
J6
Outdoor heat exchanger thermistor or related
abnormality
J8
Liquid pipe thermistor or related abnormality
J9
Gas pipe thermistor or related abnormality
P4
Radiation fin thermistor or related abnormality
j
i
i
h
i
h
L3
Electrical box temperature rise
j
h
h
h
i
h
L4
Radiation fin temperature rise
j
h
h
i
h
h
L5
Output overcurrent detection