Hob is not working and showing error notice E3

google Belling range induction hob E5 for answer.

https://finderrorcode.com/belling-oven-with-induction-cooktop-error-codes.html

Hi I have the same HOB, DEFY DHD406. The back left plate sensor doesn't seem to pick up my finger when I press it. The hob is brand new. All the other plates work except one

That error means the voltage sensor has detected higher voltage then should be present. This means power supply is bad.

Try turning off the power for a short while to allow the p c board to re set itself turn it back on and individually turn on each elements for a few minutes. Good luck
Ray

Hi Gail, I am happy to assist you!

It appears the main control has detected a faulty or error condition. "E0" should be followed by two more digits to indicate which error has occurred. Let's try turning electrical power supply off. It is necessary to wait roughly ten minutes to reset cook-top main controls. If resetting the power does not correct the issue or provides a new error code, at this point, I would recommend having a service technician to diagnose the problem before investing in unnecessary parts.

An SE error message on the display of a Samsung ceramic hob means the control panel sensor has been on for too long.
There are a few reasons why the sensor could be saying it's been on for too long:

• Touching the key area for more than 10 seconds.
• Leaving a wet cloth on the touch key area.
• Spilling a liquid on the key area.
• By touching 2 or more keys together. All of these can be fixed by turning the hob power off at the wall, then back on again.

a hob ??? or am i just stupid ??

Hi, if you take off the magnetic knob & let it flash a little longer, then switch off & on again it will work. Ours is doing the same. The book says it needs cleaning, as do the customer services people but I've cleaned & cleaned it & I assure you it's spotless. You don't have to wait 10 minutes though to start cooking, just 1 after switching off. It is very annoying though & I think we will be getting an engineer out to look at it.

i have an electrolux model ekt 6045 it does not stay on it comes on for 1sec then goes off wot would be the cours of this please the oven stays on but the hob doesent thank you.

Great.. finally. i manage find from solution from user guide.. L is Locked. below is the instruction. will check out tonight. 
The locking function holds the current settings, or prevents anyone from starting the hob. It is also used for cleaning the control strip as the controls can be locked without the hob being on. To lock the hob : -Press the on/off button     . -Press simultaneously " - " button and " + " button of the front right zone (PVD 633 front left zone), and then press again on the " + " button of this zone. The hob is locked, the locking indicator " L " is displayed on all zones for 20 seconds. To unlock the hob : -Press the on/off button      . The locking indicator " L " is displayed on all zones. -Press simultaneously the " - " button and the " + " button of the front right zone (PVD 633 front left zone), and then press again on the " - " button of this zone. The hob is unlocked.