CHECK AND TEST 1

Step 1
Unscrew cover of
mainboard with a
Cross-head screwdriver


Step 2

From Mainboard area, test resistance of
ambient temperature sensor.



Step 3

In the top hinge cover
area, measure temp. of
ambient temperature
sensor.

DIAGNOSIS 1


CHECK AND TEST 2

Step 1

Cut off the sensor.

Step 2

Strip off the sleeves.

Step 3
Connect the 2 ends

Step 4

Measure the resistance
of terminals in PCB
area.

DIAGNOSIS 2


PROCEDURE 1

Step 1

Tin soldering.

Step 2

Cover connection with
electrical tape.

DIAGNOSIS 3


PROCEDURE 2


Step 1
Push a 6mm sucker
onto display and turn
the knob to strengthen
suction force.

Step 2

Wrap a belt around knob
to make it easier to pull
out of display board.

Tips for installing
display.

Tip 1
After connecting
terminal, please use tape
to fasten wires to avoid
crushing with cove

Tip 2
After putting display
into cavity, press edge
until you hear a clicking
sound, this means the
board is pushed into final
position.

Tip 3
Please press all buttons
on display board to make
sure it works well.

PROCEDURE 3


Step 1
Prize off the cover on
door cap.


Step 2
Remove the screws (in
total 2).

Step 3
Pull out the plastic;

Step 4
Disconnect the terminal
for display panel.

Step 5
Remove tape.

Step 6

Push the display away
from the corner.

Reverse steps above
to install display
board.
Follow tips carefully:

Tip 1

Please press all buttons
on display board to
check if it works well or
not. Make sure words
and icons are clear.

Tip 2

If not, disassemble it and
put tape onto the point
indicated by red circle.

PROCEDURE 4


Step 1

Unscrew the screw of
top LED cover with 6mm
Cross-head screwdriver.

Step 2

Prize up the LED cover with screwdriver.

Step 3

Remove the LED cover.

Step 4

Unscrew the screw
of top LED bracket
with 6mm cross-head
screwdriver.

Step 5

Disassemble the LED
bracket.

Step 2

Disconnect the control
PCB wire connector.



Step 7

Remove the control
PCB.



Reverse above steps to
install new control PCB.

PROCEDURE 5


Step 1

Unscrew cover of
mainboard with a
Cross-head screwdriver.

Step 2

Disconnect terminals.

Step 3

Unscrew the mainboard.

Step 4

Prize off the buckle to
remove mainboard.

Step 5

Remove the mainboard.




Reverse above steps
to install a new board.


DIAGNOSIS 4


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