Troubleshooting 4
2. General Troubleshooting
2.1 Error Display (Indoor Unit)
When the indoor unit encounters a recognized error, the operation lamp will flash in a corresponding series, the timer
lamp may turn on or begin flashing, and an error code will be displayed. These error codes are described in the following
table:
Operation
Lamp
Timer
Lamp
Display Error
Information
Solution
1 time
OFF
E0
Indoor unit EEPROM parameter error
TS18
2 times
OFF
E1
Indoor / outdoor unit communication error
TS19
4 times
OFF
E3
The indoor fan speed is operating outside of the normal range
TS21
5 times
OFF
E4
Indoor room temperature sensor T1 is in open circuit or has short
circuited
TS23
6 times
OFF
E5
Evaporator coil temperature sensor T2 is in open circuit or has short
circuited
TS23
7 times
OFF
EC
Refrigerant Leakage Detection(for some models)
TS24
8 times
OFF
EE
Water-level alarm malfunction
TS25
1 times
ON
F0
Current overload protection
TS26
2 times
ON
F1
Outdoor room temperature sensor T4 is in open circuit or has short
circuited
TS25
3 times
ON
F2
Condenser coil temperature sensor T3 is in open circuit or has short
circuited
TS25
4 times
ON
F3
Compressor discharge temperature sensor TP is in open circuit or has
short circuited
TS25
5 times
ON
F4
Outdoor unit EEPROM parameter error
TS18
6 times
ON
F5
The outdoor fan speed is operating outside of the normal range(for
some models)
TS21
11 times
ON
fa
Communication error between indoor two chips (for some models)
--
1 times
FLASH
P0
IPM malfunction or IGBT over-strong current protection
TS27
2 times
FLASH
P1
Over voltage or over low voltage protection
TS28
5 times
FLASH
P4
Inverter compressor drive error
TS29
6 times
FLASH
P5
Indoor units mode conflict(match with multi outdoor unit)
--
7 times
FLASH
P6
Low pressure protection (for some models)
TS30
8 times
FLASH
P7
High temperature protection of IPM module (for some models)
TS31
Содержание U6MRS32-18
Страница 1: ...SERVICE MANUAL ENGLISH AIR CONDITIONING SYSTEMS LCAC...
Страница 4: ......
Страница 5: ...Contents 1 Precautions 2 2 Information servicing For flammable materials 3 Safety Precautions...
Страница 11: ...Contents 1 Model Reference 2 2 External Appearance 3 Model Reference...
Страница 13: ...Model Reference 3 2 External Appearance 2 1 Indoor Unit Compact Four way Cassette A6 Duct Floor Ceiling...
Страница 14: ...Model Reference 4 2 2 Outdoor Unit Outdoor Unit...
Страница 18: ...IDU Compact Cassette 4 2 Dimensional Drawings...
Страница 20: ...IDU Compact Cassette 6 4 Service Place...
Страница 23: ...IDU Compact Cassette 9 Heating airflow velocity distributions Heating temperature distributions...
Страница 25: ...IDU Compact Cassette 11 Heating airflow velocity distributions Heating temperature distributions...
Страница 49: ...IDU A6 Duct 8 6 Fan Performance 18K...
Страница 50: ...IDU A6 Duct 9 Constant air volume...
Страница 67: ...IDU Floor Ceiling 4 3 Part names Air inlet Display panel Air outlet grille Louver Installation part...
Страница 68: ...IDU Floor Ceiling 5 4 Service Place 35mm 1 38in 1m 3 28ft 35mm 1 38in 35mm 1 38ch...
Страница 93: ...Outdoor Unit 3 Panel Plate B30...
Страница 94: ...Outdoor Unit 4 Panel Plate BA30...
Страница 95: ...Outdoor Unit 5 Panel Plate CA30...
Страница 96: ...Outdoor Unit 6 Panel Plate D30...
Страница 97: ...Outdoor Unit 7 Panel Plate E30...
Страница 98: ...Outdoor Unit 8 Panel Plate 590...
Страница 99: ...Outdoor Unit 9 2 Service Place...
Страница 110: ...Wiring Diagrams Outdoor unit wiring diagram 16022000022493...
Страница 111: ...Outdoor unit printed circuit board diagram 17122000002718...
Страница 280: ...AIR CONDITIONING SYSTEMS LCAC Scan here to download the latest version of this manual...