How To Check The Parts - Mitsubishi Electric PUHZ-RP250YHA2 Service Manual

10-6. HOW TO CHECK THE PARTS

PUHZ-RP200YHA2
Parts name
Thermistor (TH3)
Disconnect the connector then measure the resistance with a tester.
<Outdoor pipe>
(At the ambient temperature 10 ~30 )
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<Outdoor 2-phase pipe>
Thermistor (TH7)
<Outdoor>
Fan motor(MF1,MF2) Refer to next page.
4-way valve coil Measure the resistance between the terminals with a tester.
(At the ambient temperature 20 )
(21S4)
Compressor Measure the resistance between the terminals with a tester.
(Winding temperature 20 )
U
(MC)
V
W
Linear expansion valve
Disconnect the connector then measure the resistance with a tester.
(LEV-A) RP200
(Winding temperature 20 )
Gray
M
1
2
Orange
3
Red
4
Yellow
5
Black
6
Linear expansion valve
Disconnect the connector then measure the resistance with a tester.
(Winding temperature 20 )
( LEV-A, LEV-B)
RP250
Red
M
1
Red - White Red - Orange Brown - Yellow Brown - Blue
Brown
2
Blue
3
Orange
4
Yellow
5
White
6
Bypass valve coil
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20 )
(SV)
PUHZ-RP250YHA2
TH4
160k ~410k
TH3
TH6
4.3k ~9.6k
TH7
Normal
1435±150
Normal
0.30
Gray - Black Gray - Red
Normal
46±4
Normal
1197±10
Check points
Normal
Open or short
Open or short
Open or short
Normal
Gray - Yellow
46±3
Open or short
Open or short
48
Abnormal
Abnormal
Abnormal
Abnormal
Gray - Orange
Open or short
Abnormal
Abnormal