Midea MSMBB-12CRDN1-MP0W User Manual

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9.3.6 Refrigerant Leakage Detection diagnosis and solution(EC)
Error Code
EC
Malfunction decision
conditions
Define the evaporator coil temp.T2 of the compressor just starts
running as Tcool.
In the beginning 5 minutes after the compressor starts up, if T2
＜Tcool－2°C(Tcool－35.6°F) does not keep continuous 4
seconds and this situation happens 3 times, the display area will
show “EC” and AC will turn off.
Supposed causes ● T2 sensor faulty
● Indoor PCB faulty
● System problems, such as leakage or blocking.
Trouble shooting:

Midea MSMBB-12CRDN1-MP0W Specifications

General

Brand	Midea
Model	MSMBB-12CRDN1-MP0W
Category	Air Conditioner
Language	English