Schott glass hob keeps flashing L on each ring why

Question edited for clarity.
Question moved to Schott Ceran category.

Replacement knobs, but it should go by the numerical model number in the search query as well.

https://www.google.com/search?q=schott+ceran+cooktop+replacement+knobs

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A quick gargle turned up this;
https://www.google.com/search?client=firefox-b-d&q=hotpoint+induction+hob+replacement+glass

make model specs will get you somewhere like here

https://www.bosch-home.ca/en/productlist/cooking-baking/cooktops/electric-cooktops?pageNumber=1

Schott Cerans is the maker of the glass not the model number.

https://www.us.schott.com/ceran/english/index.html?wss_setorigin=1&wss_iso=en-US

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The reference to Schott, is the maker of the ceramic glass itself. The label outlining the manufacturer and model number will be located on the base of the cooktop. Once you obtain that, contact the distributor to obtain the required knobs.

Ceramic cooktops need the correct type of pots or they leave marks,check your instruction manual.

You need to buy the new glass top without the elements, there is no fixing it, or should not be fixed, it should be replaced.

http://www.bosch-home.co.uk/quick-links/customer-service/download-product-manuals.html

Pl click helped if helped.

Try pushing the - (minus button) for more than 3 seconds and see if it unlocks. If not contact them here:

http://www.us.schott.com/hometech/english/contact/mail_form.html?mail_model_type=WSS_Contact&mail_model_id=965044006&referer=/hometech/english/products/ceran/index.html

Hi. Yes you can buy a new glass. Most of the come with frame top now. If you get me the model # I can look this up for you and get you an idea on cost.

Vic