9

TROUBLE SHOOTING

9-1. HOW TO CHECK THE PARTS

PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E1PMFY-P08NBMU-E1PMFY-P12NBMU-E1PMFY-P15NBMU-E1

Parts name

 

 

 

 

 

 

Check points

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermistor (TH21)

 

Disconnect the connector then measure the resistance with a tester.

 

<Room temperature

 

(At the ambient temperature 50°F~86°F)

 

 

 

 

 

detection>

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermistor (TH22)

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

 

Abnormal

 

Refer to the next page for the details.

<Liquid pipe temperature

 

 

 

 

 

 

 

 

 

 

 

 

4.3k"~9.6k"

 

Open or short

 

detection>

 

 

 

 

 

 

 

 

 

Thermistor (TH23)

 

 

 

 

 

 

 

 

 

 

 

 

<Gas pipe temperature

 

 

 

 

 

 

 

 

 

 

 

 

detection>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vane motor (MV)

 

Measure the resistance between the terminals with a tester.

 

Yellow 2

 

 

 

(At the ambient temperature 68°F~86°F)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MV

 

Connector

 

Normal

 

 

Abnormal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Red 4

 

 

Brown — Yellow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Brown — Red

 

 

 

 

 

 

 

 

 

Brown5

 

 

 

 

380" i7%

 

 

Open or short

 

 

 

1

3

 

Brown — Orange

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Green Orange

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Brown — Green

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Linear expansion

 

Disconnect the connector then measure the resistance with a tester.

 

valve (LEV)

Blue

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

 

 

Abnormal

 

M

 

Brown

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

Refer to the next

 

White-Red

Yellow-Brown

Orange-Red

Blue-Brown

Open or short

 

 

 

 

2 Yellow

 

 

 

 

 

 

 

 

 

page for the details.

 

 

 

 

 

150k" i10%

 

 

 

 

 

 

 

 

 

 

 

1 5 3

 

 

 

 

 

 

 

 

 

 

 

Orange

 

 

 

 

 

 

 

 

 

 

 

 

 

Red

 

 

 

 

 

 

 

 

 

 

 

 

 

White

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drain pump (DP)

 

Measure the resistance between the terminals with a tester.

 

 

 

 

 

(At the ambient temperature 68°F)

 

 

 

 

 

 

Blue

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

Normal

 

Abnormal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

400"~480"

 

Open or short

 

 

 

 

 

 

Blue

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drain sensor (DS)

 

Measure the resistance after 3 minutes have passed since the power supply was turned off.

 

 

 

 

(At the ambient temperature 32°F~140°F

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

 

Abnormal

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer to the next page for the details.

 

 

 

0.6k"~6.0k"

 

Open or short

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

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Mitsubishi Electronics PMFY-P06NBMU-E1, PMFY-P08NBMU-E1, PMFY-P12NBMU-E1 service manual Trouble Shooting

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