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Troubleshooting
SiE12-411
168
Service Diagnosis
5.2
Outdoor Units
4
: ON,
1
: OFF,
5
: Blinks
Green : Flashes when in normal condition
Red : OFF in normal condition
- : Not used for troubleshooting
∗
: Varies depending on the cases.
Note:
1. The indications in the parenthesis ( ) in the remote controller display column are displayed
only when system-down occurs.
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 type, conduct the following operation.
*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 indication may take the precedence in the remote controller display.
Outdoor Unit LED Indication
Indication on
the remote
controller
Description of The Fault
Details of
Fault (Refer
to the
indicated
page.)
Green
Red
A
1
2
3
4
5
3
3
3
3
00
Outdoor unit in normal condition
(Conduct a diagnosis of the indoor unit.)
—
UA
Unspecified voltage (between indoor and outdoor units)
203
UH
Anti-icing function in other rooms
203
5
3
3
4
4
(
U0
)
Insufficient gas
200
5
4
3
4
3
(
E5
)
OL activation (compressor overload)
181
5
3
4
4
3
(
E6
)
Compressor lock
182
5
4
3
4
3
F3
Discharge pipe temperature control
188
5
3
3
3
4
L4
Radiation fin temperature rise
(Protection of driver overheating)
196
5
4
4
3
3
H8
CT or related abnormality
190
5
4
4
3
3
H6
Position sensor abnormality
189
H9
Outdoor air thermistor or related abnormality
192
J3
Discharge pipe thermistor or related abnormality
192
J6
Heat exchanger thermistor or related abnormality
192
J8
Liquid pipe thermistor or related abnormality
192
J9
Gas pipe thermistor or related abnormality
192
P4
Radiation fin thermistor or related abnormality
192
5
3
3
4
3
L5
Output over current detection
198
5
3
4
3
4
E8
Input over current detection
184
5
4
3
4
4
A5
Freeze-up protection control
179
5
4
4
4
4
E7
DC fan lock
183
5
4
3
3
3
EA
Four way valve abnormality
186
5
4
4
3
4
L3
Electrical box temperature rise
194
5
4
3
3
4
U2
Low-voltage detection
202
Summary of Contents for Super Multi NX C-Series
Page 6: ...SiE12 411 Table of Contents v Index i Drawings Flow Charts v...
Page 7: ...SiE12 411 vi Table of Contents...
Page 67: ...Specifications SiE12 411 56 Specifications...
Page 171: ...Instruction SiE12 411 160 System Configuration...
Page 225: ...Check SiE12 411 214 Service Diagnosis...
Page 295: ...SiE12 411 iv Index...