After powering up 'F' flashes on all four plates & '20'on the timer?
Locked out ?
Only 2 of 4 rings work?
What to do re cracked Schott Seran 4 zone hob?
Please tell me how to fix my schott ceran ?
My schott ceran hob not working?
cant get my new schott ceran induction hob to work?
Schott ceran ceramic hob has stopped working?
How can I fix my schott ceran cooktop?
How do I unlock my schott ceran statesman hob?
Can I get a replacement glass for a Ceran/schott hob?
schott ceran?
How can I fix my Schott Ceran Hob?
My schott ceran hobb has one plate flashing Fd ?
My schott ceran cob has no display on LED screen?