- 31 -
Turn off power
supply once, and
turn it on again.
Does
compressor
continue to
o p erate?
Start to operate indoor
unit in cooling
operation at airflow
level
“
L O W
”
,wait
three minutes. .
Does indoor
fan operate ?
Fan motor
operates
norm ally.
Is it possible to detect AC
2 2 0 V between
p i n (h ig h /m id d le/l o w ) and
p i n (com m on) of motor
connector .
Replace indoor
fan motor.
Replace main
P.C. b o a rd.
Replace
b earin g .
Y E S
Y E S
Y E S
N O
N O
N O
Turn off indoor unit and rotate
cro ss-flow fan by hand when the
unit is on standby.Is it possible to
rotate cross-flow fan by hand
properly?
Only indoor fan motor does not operate
Only indoor fan motor does not operate
Only indoor fan motor does not operate
Only indoor fan motor does not operate....
Is capacitor of indoor fan ok?
Y E S
N O
Y E S
Replace
capacitor
N O
<
<
<
<Primary check
Primary check
Primary check
Primary check>
>
>
>
(1) Is it possible to detect the power supply voltage (2 0 0 -2 4 0 V) between L and N on the terminal
b lo c k?
(2) Does the indoor fan motor operate in cooling operation?
