23
OPERATION INDICATOR
No. Abnormal
point
Operation indicator lamp
Symptom
Condition
Correspondence
1
Attachment
of the hori-
zontal vane
All lamps
fl
ash at the same time.
0.5-second ON
0.5-second OFF
Indoor unit and
outdoor unit do
not operate.
The electricity is not conducted to the inter-
lock switch (Fan) of the horizontal vane.
Refer to 10-6. "Check of
installation of the horizontal
vane".
•
OPERATION INDICATOR
No.
Abnormal
point
Operation indicator lamp
Symptom
Condition
Correspondence
1
MXZ type
Operation
mode
setting
Upper lamp lights and lower lamp
fl
ashes.
2.5-second OFF
Outdoor unit
operates but
indoor unit does
not operate.
The operation mode of the each indoor unit
is differently set to COOL (includes DRY) and
HEAT at the same time, the operation mode
of the indoor unit that has operated at
fi
rst has
the priority.
Unify the operation mode.
Refer to outdoor unit service
manual.
•
10-5. TROUBLE CRITERION OF MAIN PARTS
MSZ-GE22VA MSZ-GE25VA MSZ-GE35VA MSZ-GE42VA MSZ-GE50VA
Part name
Check method and criterion
Figure
Room temperature
thermistor (RT11)
Indoor coil thermistor
(RT12, RT13)
Measure the resistance with a tester.
Refer to 10-7. "Test point diagram and voltage", "2. Indoor electronic control
P.C. board", the chart of thermistor.
Indoor fan motor (MF)
Check 10-6.
Vane motor (MV)
Measure the resistance between the terminals with a tester.
(Temperature: 10 - 30°C)
Color of the lead wire
Normal
RED - BLK
223 - 268
Ω
BLK
BLK
RED
BLK
BLK
ROTOR
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