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10-6. HOW TO CHECK THE PARTS
PLA-A12BA PLA-A18BA PLA-A24BA PLA-A30BA PLA-A36BA PLA-A42BA
PLA-A12BA
1 PLA-A18BA1 PLA-A24BA1 PLA-A30BA1 PLA-A36BA1 PLA-A42BA1
Parts name Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature of 10˚C[50˚F]~30˚C[86˚F])
Measure the resistance between the terminals with a tester.
(Winding temperature 20˚C[68˚F])
Measure the resistance between the terminals with a tester.
Drain pump (DP)
i-see sensor
(Option)
Drain float switch (FS)
(Refer to the Thermistor Characteristic graph.)
Room temperature
thermistor (TH1)
Pipe temperature
thermistor/liquid(TH2)
Condenser/Evaporator
temperature thermistor
(TH5)
1
3
YLW
YLW
Normal
4.3k~9.6k
Abnormal
Open or short
Normal Abnormal
290 Open or short
State of moving part
Abnormal
DOWN Other than open
UP
Normal
Open
Short Other than short
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20˚C[68˚F]~30˚C[86˚F])
Vane motor (MV)
Vane motor for
i-see sensor (Option)
Abnormal
Open or short
Red - Yellow (-, -, -, -)
Red - Blue (-, -, -, -)
Red - Orange (-, -, -, -)
Red - White (-, -, -, -)
Connector
Normal
300
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20˚C[68˚F]~30˚C[86˚F])
Abnormal
Open or short
Red - Yellow
Red - Blue
Red - Orange
Red - White
Connector
Normal
250
Normal
Do not disassemble corner panel
with i-see sensor.
Black plastic tape
Turn on the indoor unit with the black plastic tape on the outside of
i-see sensor controller board.
With electricity being turned on, measure the power voltage between connectors with tester.
i-see sensor rotates and pull out the connector of motor for i-see sensor.
Abnormal
DC 1.857V~ 3.132V Other than the normal
DC 0.939V~ 1.506V
(–)—(+)
i-see sensor connector
i-see sensor (At the ambient temperature of 10˚C[50˚F]~40˚C[104˚F])
NOTE : Be careful of handing such a static electricity.
(+)—(–) Other than the normal
4321
43 1
Blue
Black
Pink
Brown
2
2
1
Moving part
4
3
Switch
Magnet
Moving part
Yellow
Blue
Red
Orange
White
Yellow
Blue
Red
Orange
White