How To Check The Parts; Fan Motor(Mf); Linear Expansion Valve - Mitsubishi Electric Mr.Slim PUH-P25VGAA Service Manual

10-6. HOW TO CHECK THE PARTS

PUH-P25, P35, P50, P60, P71, P100VGAA.UK
PUH-P35, P50, P60, P71, P100, P125, P140YGAA.UK
PU-P35, P50, P60, P71, P100VGAA.UK
PU-P35, P50, P60, P71, P100, P125, P140YGAA.UK
Parts name
Liquid temperature
Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 10:~30:)
thermistor (TH3)
Discharge temperature
thermistor (TH4)
Condenser/evaporator
temperature thermistor
(TH6)

FAN MOTOR(MF)

P25~P71
Black
Black
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20C°)
Red
White
FUSE
OPEN : 162~169:
Protector
OPEN :135i5:
Black
Orange
Red
White
Protector
P100
OPEN :130i5:
P125
CLOSE :88i15:
P140

Linear expansion valve

Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 20:)
(LEV)
Blue
4
Brown
M 6
Yellow
5 2
1
3
White Red
Orange
4-WAY VALVE
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20C°)
SOLENOID COIL
(21S4)
BYPASS VALVE
Measure the resistance between the terminals using a tester.
SOLENOID COIL (Surrounding temperature 20°)
(21R)
Only PUH-P125, P140
CRANKCASE Measure the resistance between the terminals using a tester.
HEATER (HC)
Normal
4.3k"~9.6k"
TH3
TH4 160k"~410k"
4.3k"~9.6k"
TH6
Motor lead wire
P25~P71
77.4" ±10%
White — Black
99.1" ±10%
White — Red
(1) - (5) (2) - (6)
White - Red Yellow - Brown
150" ±10%
Normal
1430"
Normal
P125, 140
1970"
Normal
P25, P35 P50~P140
1920" ±7% 1516" ±7%
Check points
Abnormal
Open or short
Normal
P100~P140
57.4" ±10%
99.7" ±10%
Normal
(3) - (5) (4) - (6)
Orange - Red Blue - Brown
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short
50
(Refer to the next pege for a detail.)
Abnormal
Open or short
Abnormal
Open or short