Midea M4OC-36HRFN1-M - Page 35

For MTBU-12HRDN1-M, MTBU-18HRDN1-M, MCA2U-12HRFN1-M, MCA2U-18HRFN1-M, MUBU-
12HRFN1-M, MUBU-18HRFN1-M:
Operatio
n
Timer
De-frost
Alarm
Failure
Display
ODU Error
code
★
X
X
X
Open or short circuit of T1 temperature sensor
E0
——
X
X
★
X
Open or short circuit of T2 temperature sensor
E1
——
X
★
X
X
Communication malfunction between indoor and
outdoor units
E2
E2
X
X
X
★
Full-water malfunction
E3
——
★
★
X
X
Indoor EEPROM malfunction
E4
——
★
X
X

IPM module protection
E5
P6
★

X
X
Open or short circuit of T3 or T4 temperature sensor
or outdoor EEPROM malfunction
E6
E0,E4
★

★
X
Outdoor fan has been out of control
E7
E8
★


X
Indoor fan speed has been out of control
F5
——
★

X

Voltage protection
P0
E5
★
X

X
Temperature protection of compressor top.
P1
P0
★
★
★
X
Outdoor unit over-current protection
P2
P3
★
◎
X
X
Inverter compressor drive protection
P4
——
★
X


Mode conflict
P5
——
★ flash at 2.5Hz,  light, X extinguished, , ◎flash at 0.5Hz
Note: Digital display is only available for duct type.
Oasis series:
Operation lamp
Timer lamp
Display
LED STATUS
ODU
Error
★ 1 time
X
E0
Indoor EEPROM malfunction
——
★ 2 times
X
E1
Communication malfunction between indoor and outdoor units
E2
★ 4 times
X
E3
Indoor fan speed malfunction.
——
★ 5 times
X
E4
Indoor room temperature sensor open or short circuit.
——
★ 6 times
X
E5
Evaporator coil temperature sensor open or short circuit.
——
★ 2 times

F1
Outdoor temperature sensor open or short circuit.
E4
★ 3 times

F2
Condenser coil temperature sensor open or short circuit.
E4
★ 4 times

F3
Compressor discharge pipe sensor open or short circuit.
E4
★ 5 times

F4
Outdoor EEPROM malfunction
E0
★ 6 times

F5
Outdoor fan has been out of control
E8
★ 7 times

F6
Indoor unit coil outlet temp. sensor open or short circuit.
E4