8
8
.
.
C
C
H
H
E
E
C
C
K
K
I
I
N
N
G
G
C
C
O
O
M
M
P
P
O
O
N
N
E
E
N
N
T
T
S
S
37
Don’t place the comp. In air for along time.
3
）
Avoiding compressor running in reverse caused by connecting electrical wire incorrectly.
4
）
Warning! In case AC voltage is impressed to compressor, the compressor performance will
below because of its rotor magnetic force decreasing.
4. INDUCTANCE
Familiar error:
1
）
Sound abnormality
2
）
Insulation resistance disqualification.
5. STEP MOTOR
5
4
2
1
Test in resistance.
TOOL: Multimeter.
Test the resistance of winding. The stepper motor is fault if the resistance of winding 0(short
circuit)or
∞（
open circuit
）
.
6. FUSE
Checking continuity of fuse on PCB ASS’Y.
1) Remove the PCB ASS’Y from the electrical component box. Then pull out the fuse from the
PCB ASS’Y (Fig.1)
Fuse
PCB Ass'Y
Fig.1
2) Check for continuity by a multimeter as shown in Fig.2.
Fuse
Fig.2
