Mitsubishi Electric Mr.Slim PLA-RP3AA Service Manual page 35

8-7. HOW TO CHECK THE PARTS
PLA-RP3AA.UK
PLA-RP4AA.UK
PLA-RP5AA.UK
PLA-RP6AA.UK
Parts name
Room temperature Disconnect the connector then measure the resistance using a tester.
thermistor (TH1) (Surrounding temperature 10:~30:)
Pipe temperature
thermistor (TH2)
Condenser/Evaporator
temperature thermistor
(TH5)
Vane motor
Measure the resistance between the terminals using a tester.
(Surrounding temperature20:)
Fan motor Measure the resistance between the terminals using a tester.
(Winding temperature 20:)
Relay connector
1
Red 1
White
2
2
3
Black
3
Protector
OFF:130:
ON :80i20:
Drain pump
Measure the resistance between the terminals using a tester.
(Winding temperature 20:)
Red
1
2
Red
Drain sensor
Measure the resistance between the terminals using a tester.
Measure the resistance after 3 minutes have passed since the power supply was intercepted.
(Surrounding temperature 0:~60:)
1
2
3
Normal
4.3k"~9.6k" Open or short
Normal
15k" Open or short
Motor terminal
or
PLA-RP3AA.UK
Relay connector
Red-Black
White-Black
Normal
290" Open or short
Normal
0.6k"~6.0k" Open or short
Check points
Abnormal
(Refer to the thermistor)
Abnormal
Normal
PLA-RP4,5,6AA.UK
87.2" 28.7"
104.1" 41.6"
Abnormal
Abnormal
(Refer to the thermistor)
35
Abnormal
Open or short