20
9-5. Trouble criterion of main parts
MSZ-FA25VA
MSZ-FA35VA
Part name
Figure
Check method and criterion
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)
Normal
BRN-other one
Measure the resistance between the terminals with a tester.
(Part temperature 10
°
C ~ 30
°
C)
235
"
~ 255
"
Color of the lead wire
Vertical vane
motor(MV2)
i-see Sensor
motor(MT)
Normal
Measure the resistance between the terminals with a tester.
(Part temperature 10
°
C ~ 30
°
C)
Front panel
driving motor
(MP)
Normal
Measure the resistance between the terminals with a tester.
(Part temperature 10
°
C ~ 30
°
C)
94
"
~ 102
"
i-see Sensor(RR)
Turn the power ON(i-see Sensor is energized) with the aluminum block part
on the i-see Sensor P.C. board (upper part of i-see Sensor) covered with black
vinyl tape, then measure the voltage between connector terminals of i-see
Sensor using tester.
(Part temperature 10 ~ 40
°
C)
282
"
~ 306
"
Normal range
2
(-) -
4
(+)
1
(+) -
2
(-)
1.874 ~ 3.387V DC
1.010 ~ 1.420V DC
i-see Sensor
connector terminals
NOTE: Pay attention to static electricity.
Indoor fan motor(MF)
Check 9-6.
A
.
PLASMA DEODORIZING/
PLASMA AIR PURIFYING
power
Check 9-6.
F
or
G
.
Color of the lead wire
BRN-other one
Color of the lead wire
BRN-other one
RED
YLW
BRN
ORN
GRN
ROTOR
RED
YLW
BRN
ORN
GRN
ROTOR
RED
YLW
BRN
ORN
GRN
ROTOR
i-see Sensor
Connector
Black
vinyl tape
Aluminum block
i-see Sensor P.C. board
w
The aluminum block
part is covered with
black vinyl tape.
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