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80 English
Troubleshooting
Troubleshooting
For the Microwave Oven
Symptom Cause Action
General
The buttons cannot
be pressed properly.
Foreign matter may
be caught between the
buttons.
Remove the foreign matter and
try again.
For touch models:
Moisture is on the
exterior.
Wipe the moisture from the
exterior.
Control lock is activated. Deactivate Control lock.
The oven does not
work.
Power is not supplied. Make sure power is supplied.
Make sure the oven is plugged
in. Check if a fuse has been
blown or circuit breaker has
been tripped.
The door is open. Close the door and try again.
The door open safety
mechanisms are covered
in foreign matter.
Remove the foreign matter and
try again.
The oven stops while
in operation.
The user has opened the
door to turn food over.
After turning over the food,
press the Start button again to
start operation.
Symptom Cause Action
The power turns off
during operation.
The oven has been
cooking for an extended
period of time.
After cooking for an extended
period of time, let the oven
cool.
The cooling fan is not
working.
Listen for the sound of the
cooling fan.
Trying to operate the
oven without food inside.
Put food in the oven.
There is insufcient
ventilation space for the
oven.
There are intake/exhaust
outlets on the front and rear of
the oven for ventilation.
Maintain the gaps specied in
the product installation guide.
Several power plugs are
being used in the same
socket.
Designate only one socket to
be used for the oven.
There is a popping
sound during
operation, and the
oven doesn't work.
Cooking food in a sealed
container or using a
container with a lid may
cause popping sounds.
Do not use sealed containers
as they may burst during
cooking due to expansion of
the contents.
The oven exterior
is too hot during
operation.
There is insufcient
ventilation space for the
oven.
There are intake/exhaust
outlets on the front and rear
of the oven for ventilation.
Maintain the gaps specied in
the product installation guide.
Objects are on top of the
oven.
Remove all objects on the top
of the oven.
The door cannot be
opened properly.
Food residue is stuck
between the door and
oven interior.
Clean the oven and then open
the door.
NQ70M9770D_AA_DE68-04503A-02_EN+MES+CFR.indb 80 2018-10-05 4:17:25
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