Failure Display And Inspection - Haier HA2MTSJ68MC Manual De Instrucciones

8.

Failure Display and Inspection

The induction hob is equipped with a self diagnostic function. With this test the technician is able to check the
function of several components without disassembling or dismounting the hob from the working surface.
Troubleshooting
For zone 1 & 2
Problem Possible causes
E1,E2,E7,C1 Temperature sensor failure
E3,E4
Temperature sensor of the IGBT failure.
EU
The connection between the display
board and the main board is fail
EL,EH Abnormal supply voltage
C3 Temperature sensor of the ceramic glass
plate Is high
C2
Temperature sensor of the IGBT
Is high
For zone 3 & 4
1) Failure code occur during customer using & Solution;
Failure code
EL
EH
C1, C3
C2
E2
E1
E7
E4
E3
Problem
Auto-Recovery
Supply voltage is above the rated
voltage.
Supply voltage is below the rated
voltage.
High temperature of ceramic plate
sensor .
High temperature of IGBT .（1#）
No Auto-Recovery
Ceramic plate temperature sensor
failure- -short circuit.
Ceramic plate temperature sensor
failure--open circuit.
Ceramic plate temperature sensor
failure—invalid .
Temperature sensor of the IGBT failure -
short circuit .
Temperature sensor of the IGBT failure -
open circuit.
What to do
Please contact the supplier.
Please inspect whether power
supply is normal.
Power on after the power
supply is normal.
Please restart after the
induction hob cools down.
Please inspect whether power
supply is normal.
Power on after the power supply is
normal.
Wait for the temperature of
ceramic plate return to
normal.
Touch "ON/OFF" button to restart
unit.
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.
Check the connection or
replace the ceramic plate
temperature sensor.
Replace the power board.
24
Solution