LG GR-J303TG, Service Manual

Page: 13 / 46

(2) Load Operation in Failure
- 13 -
Classification
ITEM NO
UPPER
COMPARTMENT
FAN
COMP
DEFROSTING
HEATER OF
UPPER
COMPARTMENT
DEFROSTING
HEATER OF
MIDDLE
COMPARTMENT
STEPPING
MOTOR
DAMPER
SINGLE
MOTOR
DAMPER
3-WAY
VALVE
FRONT-C
HEATER
MIDDLE
COMPARTMENT
FAN
Normal
Failure of
Upper
compartment
(K1) sensor
Failure of
Middle
compartment
(K1) sensor
Failure of
Upper
compartment
(K1) sensor
Failure of
Upper
compartment
defrosting
sensor
Failure of
Middle
compartment
defrosting
sensor
Failure of
ambient
Temperature
sensor
Poor
defrosting
at upper
compartment
Poor
defrosting
at middle
compartment
Failure of
single
motor
damper
Poor
communication
1
2
3
4
5
6
7
8
9
10
11
O
15 min
ON/
15 min
OFF
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Don’t
defrost
(immediat
ely return)
O
O
O
O
O
O
O
O
O
O
O
Don’t
defrost
(immediat
ely return)
O
O
O
O
O
O
O
15 min
OPEN/
15 min
CLOSE
O
O
O
(No
compensation
of ambient
temperature)
O
O
O
O
O
O
O
10 min
OPEN/
15 min
CLOSE
O
O
(No
compensation
of ambient
temperature)
O
O
Perform
normal
initialization
by checking
operation
in the cycle
of 1 hour
O
O
O
(Linked
with
COMP.
However,
FRONT-C
heater
turns off
for 15
minutes
and turn
on again if
the heater
turn on
time
continues
for more
than 40
minutes)