Midea LC3 Series Technical & Service Manual page 94

Midea LC3 Series DC Inverter Air conditioner Technical Service Manual
MCAC-UTSM-202006
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Error code Error definition
HF IDU mismatching error
L (L0/L1) error occurs three times in one hour,
reporting H4,and this error is not recoverable.
After H4 error, spot check may be performed on
H4 the latest three L errors (not limited to L0, L1).
For example: report L0-L4-L8-L9-L0-L1 within
one hour, and report H4 error.The errors for
spot check are L9, L0, and L1.
E7 IDU EEPROM error
E9 ODU EEPROM error
Wrong
E.9.
memory EPROM
Communication error between main control
H0
board and IR341
E1 Communication error between IDU and ODU
E2 T1 sensor error
E3 T2 sensor error
E4 T2B sensor error
E43 T3 sensor error
E44 T4 sensor error
E45 T5 sensor error
E5 Voltage protection error
E6 ODU DC fan error
EE Water level alarm error
Ed Rest of ODU error(EE,LA,LC,LH etc)
E6 error occurs six times in one hour, requiring
Eb
power failure recovery
EF PFC feedback resistance failure
PL Heat sink TF high temperature protection
P1 High pressure protection
P2 Low pressure protection
P3 Input current protection
P4 Discharge temperature protection
Outdoor
P5
protection
PE Evaporator T2 high temperature protection
L0 Module protection is triggered
L1 DC bus low voltage protection
L2 DC bus high voltage protection
L4 MCE error
L5 Zero speed protection
L7 Phase loss
Protection when the previous and next speed
L8
change is > 15Hz
compressor model
condenser T3 high
Error display
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
in parameter Immediate display (Display E9), spot check
available
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
Immediate display, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Immediate display, spot check available
Display after 10 minutes, spot check available
Immediate display, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
temperature
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
Display after 10 minutes, spot check available
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