Troubleshooting
40
English
Troubleshooting
Problem
Cause
Action
The oven exterior
is too hot during
operation.
There is not sufficient
ventilation space for the
oven.
There are intake/exhaust
outlets on the front and
rear of the oven for
ventilation. Keep the gaps
specified 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.
Heating including the
Warm function does
not work properly.
The oven may not work,
too much food is being
cooked, or improper
cookware is being used.
Put one cup of water in a
microwave-safe container
and run the microwave
for 1-2 minutes to check
whether the water is
heated. Reduce the
amount of food and start
the function again. Use a
cooking container with a
flat bottom.
The thaw function
does not work.
Too much food is being
cooked.
Reduce the amount of
food and start the function
again.
Problem
Cause
Action
The interior light is
dim or does not turn
on.
The door has been left
open for a long time.
The interior light may
automatically turn off
when the Eco function
operates. Close and reopen
the door or press the
Stop/
ECO
button.
The interior light is
covered by foreign matter.
Clean the inside of the
oven and check again.
A beeping sound
occurs during
cooking.
If the Auto Cook function
is being used, this beeping
sound means it's time to
turn over the food during
thawing.
After turning over the
food, press the
Start/+30s
button again to restart
operation.
The oven is not level. The oven is installed on an
uneven surface.
Make sure the oven is
installed on flat, stable
surface.
There are sparks
during cooking.
Metal containers are used
during the oven/thawing
functions.
Do not use metal
containers.
When power is
connected, the oven
immediately starts to
work.
The door is not properly
closed.
Close the door and check
again.
There is electricity
coming from the
oven.
The power or power socket
is not properly grounded.
Make sure the power and
power socket are properly
grounded.
FG77SUB_EO_DE68-04136G-00_EN.indd 40
2/21/2019 4:53:56 PM
