Mitsubishi Electric MSZ-GE22VA-A1 Service Manual page 31

OPERATION INDICATOR
Abnormal
No. Operation indicator lamp
point
All lamps fl ash at the same time.
Attachment 0.5-second ON
1 of the hori-
zontal vane
0.5-second OFF
OPERATION INDICATOR
Abnormal
No.
point
Upper lamp lights and lower lamp fl ashes.
MXZ type
Operation
1
mode
2.5-second OFF
setting
10-5. TROUBLE CRITERION OF MAIN PARTS
MSZ-GE22VA MSZ-GE22VAD MSZ-GE25VA
MSZ-GE35VA MSZ-GE35VA2
MSZ-GE50VA MSZ-GE50VA2
MSZ-GE71VA MSZ-GE71VAD MSZ-GE80VA
Part name
Room temperature
thermistor (RT11)
Indoor coil thermistor
(RT12, RT13)
Indoor fan motor (MF)
MSZ-GE22/25/33/35/42/50
Vane motor (MV)
MSZ-GE60/71/80
Horizontal vane motor
(MV1)
Vertical vane motor
(MV2)
OBH531E
Operation indicator lamp
MSZ-GE35VAD MSZ-GE42VA
MSZ-GE50VAD MSZ-GE60VA
Measure the resistance with a tester.
Refer to 10-7. "Test point diagram and voltage", "2 or 3. Indoor electronic
control P.C. board", for the chart of thermistor.
Check 10-6.
Measure the resistance between the terminals with a tester.
(Temperature: 10 - 30°C)
Color of the lead wire
RED - BLK
Measure the resistance between the terminals with a tester.
(Temperature: 10 - 30°C)
Horizontal vane motor (MV1)
Vertical vane motor (MV2)
Symptom
Indoor unit and
The electricity is not conducted to the inter-
outdoor unit do
lock switch (Fan) of the horizontal vane.
not operate.
Symptom
The operation mode of the each indoor unit
Outdoor unit
is differently set to COOL (includes DRY) and
operates but
HEAT at the same time, the operation mode
indoor unit does
of the indoor unit that has operated at fi rst has
not operate.
the priority.
MSZ-GE25VAD MSZ-GE33VA
MSZ-GE80VA2 MSZ-GE80VAD
Check method and criterion
Normal
223 - 268 Ω
Color of the lead wire
RED-BLK
31
Condition
• Refer to 10-6.
installation of the horizontal
vane".
Condition
• Unify the operation mode.
Refer to outdoor unit service
manual.
MSZ-GE42VAD
MSZ-GE60VAD
Normal
313 ~ 375 Ω
268 ~ 322 Ω
Remedy
"Check of
Remedy
Figure
BLK
ROTOR
BLK
RED
BLK BLK
BLK
ROTOR
BLK
RED
BLK BLK