CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a cross-head screwdriver. 

Step 2

Measure resistance of
heater from terminal in
PCB area.

Step 3

Measure resistance of
heater from terminal in
PCB area.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Remove all freezer
drawers.

Step 2

Remove all freezer
shelves.

Step 3

Remove screw covers
(total of two) on upper
freezer air duct with
Slotted Screw Driver.

Step 4

Unscrew screws (total
of two) on upper freezer
air duct with Cross-head
screw driver.

Step 5

Catch bottom of air duct
upper freezer air duct
and pull all buckles (total
of 8) down.

Step 6

Take out upper freezer
air duct by tilting to one
side.
Pay attention to the
connectors when pulling
out the air duct.

Step 7

Disconnect the terminal
for fan motor and move
upper freezer air duct
away.

Step 8

Disconnect the terminal
for fan motor and move
upper freezer air duct
away.

Step 9

Unscrew the screw on
bottom freezer air duct
with Cross-head screw
driver.

Step 10

Catch bottom of air duct
bottom freezer air duct
and pull all buckles
(total of 10) down.

Step 11

Take out the lower air
duct, tilting to one side.

CHECK AND TEST 2

Step 1

Check if terminal (C) is
inserted to final position.
If not, re-insert it.

Step 2

Disconnect the terminal
for defrost heater

Step 3

Check if the terminal is
filled with foam.

Step 4

Measure the resistance
of heater from terminal
in freezer.

Step 5

Assess the result.

DIAGNOSIS 2


PROCEDURE 2


Step 1

Use screwdriver to remove
the heat conductor (if any).

Step 2

Use 6mm cross-head
screwdriver to unscrew
the defrost heater

Step 3

Cut off the fastening
straps.

Step 4

Tear off Polyethylene
sealing foam.

Step 5

Loosen the fastening
clips for heater.

Step 6

Remove the heater,
reverse above process
to reinstall the new
heater.

WARNING

Be careful not to
deform pipes in
red square during
steps 5 and 6.


PROCEDURE 3


Tip 1                                              Do not injure the wires of
the heater while installing
the new heater.

CHECK AND TEST 3

Step 1

Set multimeter to
resistance gear.

Step 2

Use multimeter to
check whether wire
connections in foam are
good or not.

DIAGNOSIS 3


CHECK AND TEST 4

Step 1

Reconnect terminals for
defrost heater.

Step 2

Power on the appliance
and start manual defrost.



a) Press Freezer Temp.
button together with
Mode button for 5 sec, 0
flashes in freezer temp.
area.

b) Press Freezer
Temp. button, 1 and 3
will appear in freezer
temperature area

c) When 3 appears,
remove finger and select
manual defrost.


Note

1 means:
start forced cooling.
3 means:
start manual defrost.


Step 3

Put your hand close to
defrost heater.


WARNING !!!

DO NOT TOUCH

DEFROST HEATER

DIAGNOSIS 4


Note


PROCEDURE 4


Tip 1:                                                               When restoring the
upper freezer air duct,
fasten the wires to avoid
crushing them with air
duct.

Tip 2:

All buckles should be
pushed into proper final
position. If not, please
repeat installation.

GO BACK TO COMPONENT LIST