Индукционная плита Gorenje EI 67321 AX, ошибка Е4

If there is an error E4 we must try to eliminate this error with making a configuration anew.
Procedure is the following:
1. All pans must be removed from the cooking zones. Suitable pan of the size at least 80% of the largest cooking zone must be available for making the configuration.
2. The configuration can be initiated within 2 minutes after connection of mains voltage. TC and all displays remain switched off.
3. Press the KeyLock-key and hold it.
4. Press all the selection keys available starting anti-clockwise with the cooking zone front right. Every action is acknowledged by a signal tone. An incorrect input is acknowledged by a doubled signal. In this case the access to the service menu has to be repeated. When enter was successful there will be displayed "0" for the front left cooking zone and for the rear left cooking zone will be alternating displayed "C" or "0".
5. Now press and hold sensor key on/off. If cooking zone is not configurated there will be "C" on the display, for configurated zones will be "-".
6. Press and hold again the sensor key on/off and old configuration will be erased. On all display "E" starts to blink. After a while on all displays will be displayed "C". Configuration can be now carried out.
7. Choose the cooking zone which has to be configurated. Symbol "C" starts flashing. Within 20 seconds it is necessary to put the pot on the cooking area, on the display will appear "-".
8. This procedure must be carried out for each cooking zone until the configuration menu after the configuration of the last cooking zone automatically completed. Please note that in any case should not be while configuring two containers simultaneously on the induction plate. "-".