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21
Communication
sending
Ec
malfunctions
Communication
Er
receiving
malfunctions
●
Freezer fan
F1
malfunctions
Closed Freezer
/Refrigerator
dr
doors or
the door switch
malfunctions
High
temperature in
OP
the refrigerator
compartment
Display board
1. Checking the
cannot
send
connecting is
signal to main
well or not.
control board
2. Replace the
display board.
Display board
3. Replace the
cannot
control PCB.
receive signal
from main
control board
1. Checking the
separation of
connecting is
fan
housing
well or not. 2.
part,
contact
Replace the
error,
freezer fan.
disconnection,
3. Replace the
short circuit.
control PCB.
1. Door is not
1. Checking the
closed
connecting is
properly.
well or not.
2. Door switch
2. Check the
contact error,
magnet on the
disconnection,
door is dropped
short/open
out or not.
circuit.
3. Replace the
door switch.
4. Replace the
control PCB.
/
1. Checking the
compressor is
working or not.
2. Refrigerator
sensor
Refrigerator
sensor
●
Hisense Refrigerator
/
/
9V-12V
/
/
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