Midea MTB1T-96CWN1

Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707
87
11.4 Trouble shooting (The Duct Type)
No.
Display
Fault or protection meaning
1
All lamps flashing at 5Hz
The PRO terminal on PCB of indoor unit without connected to Null line, or
optical coupler on PCB malfunction
2
Timer lamp flashing at
5Hz
Room temperature sensor malfunction.
3
Operation lamp flashing
at 5Hz
Evaporator temperature sensor malfunction.
4
Defrosting lamp flashing
at 5Hz
Condenser temperature sensor malfunction.
5
Alarm lamp flashing at
5Hz
Water-level checking malfunction.
6
Operation lamp and timer
lamp flashing at 5Hz
EEprom malfunction
11.5 Trouble shooting (The Floor-standing Type)
No.
Display content
Fault or protection meaning
1
E0
EEprom error
2
E1
T1, room temperature sensor, fault of open circuit, short circuit.
3
E2
T2, pipe temperature sensor, fault of open circuit, short circuit.
4
P1
Under cooling mode, T2 is on low temperature protection.
5
P2
Under heating mode, T2 is on high temperature protection.