LG GR-459GTCA, Service Manual

Page: 16 / 60

2. RELAY ASSY (PTC AND OLP)
- 16 -
L N
T
3 2
2
M
C
S M
C
S
YES
NO
Normal operation of
Compressor is
impossible or poor.
Separate the Relay Assy
from Compressor and
measure the resistance
between M and S with a
Tester or Whistone Bridge.
(Figure 21)
Separate the Relay Assy
from the Compressor and
check the resistance value
between two terminals of
OLP with a Tester.
(Figure 22)
Observation value is
220V/50Hz : 22
Ω
±30%
115V/60Hz : 6.8
Ω
±30%
240V/50Hz : 33
Ω
±30%
127, 220V/60Hz :
22
Ω
±30%
The resistance value is 0
or serveral hundreds
Ω
.
The value is
∞
.
Check another
electric components.
Replace Relay Assy.
Check another
electric
components.
Replace
Relay Assy.
Figure 21 Figure 22