How To Check The Parts - Mitsubishi Electric Mr.Slim PLA-RP35BA Service Manual

10-6. HOW TO CHECK THE PARTS

PLA-RP35/50/60/71/100/125/140BA.UK
PLA-RP35/50/60/71BA
PLA-RP35/50/60/71/100/125/140BA#2.UK
PLA-RP35/50/60/71BAR3.UK
PLA-RP71/100/125/140BA2.UK
Parts name
Room temperature Disconnect the connector then measure the resistance with a tester.
thermistor (TH1) (At the ambient temperature of 10
Pipe temperature
thermistor/liquid(TH2)
Condenser/Evaporator
temperature thermistor
(TH5)
Vane motor (MV)
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20
White
MV
Red - Yellow
Orange
Red - Blue
Red
Red - Orange ( - ,
Yellow
Blue
Red - White
Drain pump (DP) Measure the resistance between the terminals with a tester.
(Winding temperature 20 )
YLW
1
3
YLW
Drain float switch (FS)
Measure the resistance between the terminals with a tester.
Moving part
State of moving part
1
2
3
4
i-see sensor
Turn on the indoor unit with the black plastic tape on the outside of i-see sensor controller board.
(Option)
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.
4 3 2 1
i-see sensor (At the ambient temperature of 10
4 3 2 1
Blue Black Pink Brown
NOTE : Be careful not to discharge static electricity into electronics.
Measure the resistance between the terminals with a tester.
Vane motor for
(At the ambient temperature of 20
i-see sensor (Option)
White
Red - Yellow
MV
Red - Blue
Orange
Red - Orange
Red
Red - White
Yellow
Blue
OCH412F
.UK
1
Normal Abnormal
4.3k ~9.6k Open or short
Connector
( - , - ,
( - , - ,
- ,
( - , - ,
Normal Abnormal
290 Open or short
Normal
UP Short
DOWN Open
Black plastic tape
i-see sensor connector
(–)— (+)
(+)— (–)
Normal
Connector
250
Check points
- 30 )
(Refer to the thermistor.)
- 30 )
Normal
- , - )
- , - )
300
- , - )
- , - )
Abnormal
Other than short
Other than open
Do not disassemble corner panel
with i-see sensor.
- 40 )
Normal
DC 1.857V ~ 3.132V
DC 0.939V ~ 1.506V
- 30 )
Abnormal
Open or short
35
Abnormal
Open or short
Switch
Magnet
Moving
Part
Abnormal
Other than the normal
Other than the normal