Troubleshooting
Si12-619A
210
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
Reference
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)
259
UH
Anti-icing function in other rooms
259
5
3
3
4
4
(
U0
)
Insufficient gas
253
5
4
3
3
4
U2
Low-voltage detection or over-voltage detection
257
5
3
4
4
4
U7
Signal transmission error (on outdoor unit PCB)
258
5
4
3
4
4
A5
Freeze-up protection control
222
5
4
4
4
3
E1
Outdoor unit PCB abnormality
224
5
4
3
4
3
(
E5
)
OL activation (compressor overload)
225
5
3
4
4
3
(
E6
)
Compressor lock
226
5
4
4
4
4
E7
DC fan lock
228
5
3
4
3
4
E8
Input over current detection
229
5
4
3
3
3
EA
Four way valve abnormality
231
5
4
3
4
3
F3
Discharge pipe temperature control
233
5
4
3
4
4
F6
High pressure control in cooling
234
5
4
4
3
3
H0
Compressor sensor system abnormality
236
H8
CT or related abnormality
239
5
4
4
3
3
H6
Position sensor abnormality
238
H9
Outdoor air thermistor or related abnormality
241
J3
Discharge pipe thermistor or related abnormality
241
J6
Heat exchanger thermistor or related abnormality
241
J8
Liquid pipe thermistor or related abnormality
241
J9
Gas pipe thermistor or related abnormality
241
P4
Radiation fin thermistor or related abnormality
241
5
4
4
3
4
L3
Electrical box temperature rise
243
5
3
3
3
4
L4
Radiation fin temperature rise
(Protection of driver overheating)
247
5
3
3
4
3
L5
Output over current detection
251
Содержание 3MKS50DVM
Страница 1: ...Si12 619A Applied Models Inverter Multi Cooling Only Inverter Multi Heat Pump D Series E Series ...
Страница 13: ...Introduction Si12 619A xii ...
Страница 89: ...Printed Circuit Board Connector Wiring Diagram Si12 619A 76 Printed Circuit Board Connector Wiring Diagram ...
Страница 131: ...Control Specification Si12 619A 118 Function and Control ...
Страница 146: ...Si12 619A Instruction Operation Manual 133 Duct Connected Type Names of parts Indoor Unit 3 6 8 9 10 7 1 4 5 2 ...
Страница 213: ...Instruction Si12 619A 200 Operation Manual ...
Страница 283: ...Check Si12 619A 270 Service Diagnosis ...
Страница 302: ...Si12 619A Outdoor Unit E Series 50 52 58 Class Removal Procedure 289 Step Procedure Points ...
Страница 385: ...Wiring Diagrams Si12 619A 372 Appendix FTK X S50 60 71FVLT ...
Страница 399: ...Si12 619A vi Index ...