Midea MO11MU-09HRDN1

DM12-01.01.10en Oasis Inverter
Service manual 59
11.2.9 High temperature protection of compressor top diagnosis and solution
11.2.10 Refrigerant Leakage Detection
Shut off the power supply and turn on it 5s later
The problem comes out again
Yes
Replace the T2 sensor
and check if the errors
happen again?
Is there any leakage? Especially the connection
parts, such as the gas valve and the liquid valve
Is there cool air blowing out from the indoor unit air
outlet?
No
No
Is there any block? (Such as the capillary or the
welded
p
oints of the
p
i
p
es.
)
Yes
Replace the indoor PCB
Yes
Yes
No,
Charge refrigerant
Is the abnormality the same
after gas charging?
Replace the outdoor PCB
No
Yes
Is protector normal?
No
No
Is the connection good?
Is refrigerant circulation volume
normal?
Reconnect it
Does the compressor operate?
Replace it
There is block (Such as
capillary or welded points of the
pipes.)