
Failure
Problem
Solution
The
LED
does
not
come
on
when
unit
is
plugged
in.
NO
power
supplied
or
display
is
damaged.
21
Page
Some
buttons
can’t
work,
or
the
LED
display
is
not
normal.
The
display
board
is
damaged.
22
Page
The
Cooking
Mode
indicator
comes
on,
but
heating
does
not
start.
There
is
something
wrong
of
the
fan
or
the
power
board
is
damaged.
23
Page
Heating
stops
suddenly
during
operation
and
display
“U”
Cooker
has
overheated
or
the
pan
type
is
wrong.
24
Page
Heating
zones
of
the
same
side
(Such
as
the
first
and
the
second
zone)
would
display
“U”.
Communication
failure
25
Page
Fan
motor
sounds
abnormal.
The
fan
motor
is
damaged
or
foreign
body
inside.
Replace
the
fan.
Clean
‐
up
the
fan.
- 20 -
4-3 Electrical Malfunction