How To Check The Parts; Table Of Contents - Mitsubishi Electric Mr.SLIM PU-P71VHA Service Manual

11-6. HOW TO CHECK THE PARTS

PU(H)-P71VHA .UK
(1)
PU(H)-P125YHA .UK
(1)
PU(H)-P71VHA#2.UK
PU(H)-P125YHA#2.UK PU(H)-P140YHA#2.UK
PU(H)-P71VHAR3.UK
PU(H)-P125YHAR3.UK PU(H)-P140YHAR3.UK
PU(H)-P125YHAR4.UK PU(H)-P140YHAR4.UK
Parts name
Thermistor (TH3)
<Outdoor pipe>
Thermistor (TH4)
<Discharge/Compressor surface>
Thermistor (TH6)
<Outdoor 2-phase pipe>
FAN MOTOR(MF)
P71, P125, P140 P100
Black
Red
White
FUSE
OPEN:141
Protector
OPEN:135 5
Solenoid valve coil (21S4)
<Four-way valve>
Motor for compressor (MC)
U
V
W
Linear expansion valve (LEV)
Gray
M
1
2
Orange
3
Red
4
Yellow
5
Black
6
Solenoid valve coil (SV)
<Bypass valve>
For P125, P140
CRNKCASE HEATER (CH)
OC379F
PU(H)-P100VHA .UK
(1)
PU(H)-P140YHA .UK
(1)
PU(H)-P100VHA#2.UK
PU(H)-P100VHAR3.UK
Disconnect the connector then measure the resistance with a tester.
(Surrounding temperature 10 ~30 )
TH4
TH3
TH6
Measure the resistance between the terminals with a tester.
(Surrounding temperature 20 )
Black
Motor lead wire
Orange
White — Black
Red
White
White — Red
Protector
OPEN :140 5
CLOSE :90 15
Measure the resistance between the terminals with a tester.
(Surrounding temperature 20 )
P71,P100
1500 ± 150
Measure the resistance between the terminals with a tester.
(Winding temperature 20 )
Disconnect the connector then measure the resistance with a tester.
(Winding temperature 20 )
Gray - Black
Measure the resistance between the terminals with a tester.
(Surrounding temperature 20 )
Measure the resistance between the terminals with a tester.
PU(H)-P71YHA .UK
(1)
PU(H)-P71YHA#2.UK
PU(H)-P71YHAR3.UK
Check points
Normal
160k ~410k
4.3k ~9.6k
Normal
P71, P125, P140 P100
82.5 ±10% 44.5 ±7%
102.0 ±10% 43.7 ±7%
Normal
P125,P140
1435 ± 150
Normal
Refer to 6-2.
Normal
Gray - Red Gray - Yellow Gray - Orange
46 ± 3
Normal
1450 ± 150
Normal
P71,P100,P125,P140
2304 ± 7%
50
PU(H)-P100YHA .UK
(1)
PU(H)-P100YHA#2.UK
PU(H)-P100YHAR3.UK
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short