Midea CSU-05HCAA Installation And Maintenance Manual page 104

Only indoor fan motor does not operate.
<Primary check>
(1) Is it possible to detect the power supply voltage (200-240V) between L and N on the terminal
block?
(2) Does the indoor fan motor operate in cooling operation?
Turn off power
supply once, and
turn it on again.
Does
YES
compressor
continue to
operate?
NO
Start to operate indoor
unit in cooling
operation at airflow
level "LOW",wait
three minutes..
Does indoor
fan operate?
YES
Fan motor
operates
normally.
Is it possible to detect AC
220V between
pin(high/middle/low) and
pin(common) of motor
connector .
Turn off indoor unit and rotate
cross-flow fan by hand when the
NO
unit is on standby.Is it possible to
rotate cross-flow fan by hand
properly?
Is capacitor of indoor fan ok?
Replace indoor
fan motor.
NO
YES
NO
YES
NO
YES
第 56 页 共 59 页
Replace main
P.C. board.
Replace
bearing.
Replace
capacitor