21
F9/FA
Temperature sensor of the IGBT
failure.
(short circuit/open circuit for #1)
Replace the power board.
FC /FD
Temperature sensor of the IGBT
failure.
(short circuit/open circuit for #2)
2. Specific failure and solution
Failure
Problem
Solution A
Solution B
The LED does not
come on when unit is
plugged in.
No power supplied.
Check to see if plug
is secured tightly in
the outlet and that
the outlet is working.
The accessorial
power board and the
display board
connected is failure.
Check the
connection.
The accessorial
power board is
damaged.
Replace the
accessorial power
board.
The display board is
damaged.
Replace the display
board.
Some buttons don’t
work, or the LED
display is not normal.
The display board is
damaged.
Replace the display
board.
The cooking mode
indicator comes on,
but heating does not
start.
High temperature of
the cooktop.
Ambient temperature
may be too high. Air
intake or air vent may
be blocked.
There is something
wrong with the fan.
Check whether the
fan runs smoothly if
not, replace the fan.
The power board is
damaged.
Replace the power
board.
Heating stops
suddenly during
operation and the
display flashes “u”.
Pan type is wrong.
Use suitable
cookware.
Pan detection circuit
is damaged, replace
the power board.
Pot diameter is too
small.
Unit is overheated.
Wait for temperature
to return to normal.
Push “ON/OFF”
button to restart unit.
Cooker has
overheated.
Check the
connection.
Heating zones of the
same side (Such as
the first and the
second zone) would
display “u”.
The power board and
the display board
connected is failure.
Replace the display
board.
The display board of
communicate part is
damaged.
Replace the power
board.
