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16
Troubleshooting
Failure code
Problem
Solution
Auto-Recovery
E1
Supply voltage is above the rated
voltage
Please inspect whether power supply is
normal
Power on after the power supply has returned
to normal
E2
Supply voltage is below the rated
voltage
E3
High temperature of ceramic plate
sensor (1#)
Wait for the temperature of ceramic plate to
return to normal
Touch “ON/OFF” button to restart unit
E4
High temperature of ceramic plate
sensor (2#)
E5
The induction unit may be getting
too hot (1#)
Wait for the temperature of IGBT return to
normal
Touch “ON/OFF” button to restart unit
Check whether the fan runs smoothly;
if not, replace the fan
E6
High temperature of IGBT (2#)
No Auto-Recovery
Please request a service visit
F3/F6
Ceramic plate temperature sensor
failure- -short circuit (F3 for 1#, F6
for 2#)
Check the connection or replace the ceramic
plate temperature sensor
F4/F7
Ceramic plate temperature sensor
failure--open circuit (F4 for 1#, F7
for 2#)
F5/F8
Ceramic plate temperature sensor
failure—invalid (F5 for 1#, F8 for 2#)
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#)