Help Interface - Midea CCM-180A/WS Service Manual

CCM-180A/WS

4.7 Help Interface

This manual is intended for reference only. Refer to the error shown on the actual device for troubleshooting.
Please consult a Midea engineer to check if the error code of the specific model belongs to a "new-generation refrigerant
system".
Table 15 Error codes for new generation ODU
Code
E0
E1
E2
E4
E5
E6
E7
E8
xE9
xF1
F3
F5
F6
xH0
H2
H3
xH4
H5
H6
H7
H8
H9
C7
P1
P2
xP3
P4
P5
P9
PL
PP
xL0
xL1
xL2
xL4
42
ODU Error Description
Communication error between outdoor units
Phase sequence error
Communication error between an indoor unit and the master unit
Outdoor heat exchanger temperature sensor (T3) error or outdoor
ambient temperature sensor (T4) error
Abnormal power supply voltage
Abnormal module temperature or Tf temperature sensor
Compressor top or discharge pipe temperature sensor (T7C1/2) error
Outdoor unit address error
EEPROM mismatch
PTC error
Plate heat exchanger cooling refrigerant outlet temperature sensor
(T6B) error
Plate heat exchanger cooling refrigerant inlet temperature sensor
(T6A) error
Electronic expansion valve (EEV) connection error
Communication error between the main control chip and inverter
driver chip
Number of slave units detected by the master unit has decreased
Number of slave units detected by the master unit has increased
Inverter module protection
P2 protection appears three times in 60 minutes
P4 protection appears three times in 100 minutes
The number of indoor units detected by the master unit is different to
the number set on main PCB
High pressure sensor error
P9 protection appears ten times in 120 minutes
PL protection appears three times in 100 minutes
Discharge pipe high-pressure protection
Suction pipe low-pressure protection
Compressor current protection
Discharge temperature protection
Outdoor heat exchanger temperature protection
Fan module protection
Inverter module temperature protection
Compressor discharge insufficient superheat protection
Inverter module protection
DC bus low voltage protection
DC bus high voltage protection
MCE error
201803