Repairing my Neff induction hob?

Dear forum members
Can anyone be kind enough to suggest what might the problem with my hob and the best course of remedial actions


The details are:
Manufacturer: Neff
Appliance type: Induction hob (4 element)
E-Nr: T4284 X0
Ref: 01/FD8603200073

Fault
1.On switching on all four indicator lights show 0

2.Place a pan on either of the two right hand hobs and + to set a level of heating

3.The light flashes showing the heating level selected 0 – 9

4.After about 30 seconds the indicator changes to alternating between 0 and e

5.The two hobs on the left work fine

Remedial actions taken.
1.Switched off the mains supply for 15min and reconnected