Service manual

17
Lighted
Blinking
Not Lighted
No.
SymptomOperation indicator lamp Condition
Correspondence
Abnormal
point
1
MXZ type
Operation
mode
setting
Outdoor unit
operates but
indoor unit
does not
operate.
When the operation mode of each indoor unit
is differently set to COOL(includes DRY) and
HEAT at the same time, the operation mode of
indoor unit that has operated at first has the
priority.
• Unify the operation mode.
Refer to outdoor unit
service manual.
2.5-second OFF
Right lamp flash
· Flashing of OPERATION INDICATOR lamp (right-hand side lamp) indicates
abnormality.
· OPERATION INDICATOR lamp (left-hand side lamp) is lighted.
9-5. Trouble criterion of main parts
MSZ-GA50VA MSZ-GA60VA MSZ-GA71VA MSZ-GA80VA
Part name FigureCheck method and criterion
Indoor fan motor(MF)
Measure the resistance with a tester.
Refer to 9-7. "Test point diagram and voltage", "Indoor electronic control
P.C. board", the chart of thermistor.
Room temperature
thermistor(RT11)
Indoor coil thermistor
(RT12(MAIN), RT13(SUB))
Horizontal vane
motor(MV1)
Vertical vane
motor(MV2)
Normal
BRN-other one
Measure the resistance between the terminals with a tester.
(Part temperature 10°C ~ 30°C)
282 " ~ 306 "
Color of the lead wire
Check 9-6. A.
RED
YLW
BRN
ORN
GRN
ROTOR
OB419A.qxp 06.6.5 11:09 AM Page 17