# Solved problem: Red key light - locked Constructa schott ceran. Posting a solution after HOURS of fighting this problem - I used this site extensively but couldn't find the answer in here, so hoping this helps someone else. holding for 5 seconds the button which extends the hob on the back right solved this for us (it's the button which looks like a circle superimposed on a rectangle-like shape, not the one of two concentric circles). This fixed the problem for a Constructa Schott ceran displaying the red key of doom and despair. The only model number on the ceramic surface was 9000285495. Happy cooking.

Posted by Anonymous on

• andi pascu Dec 03, 2017

I unlocked it by holding for 5 seconds the button with a circle and an open ellipse next to it, something looking like this: OD

• Dita Lipa Jul 27, 2021

Thank you . You saved my life ?

×

### Maria Dobreva

• Level 1:

An expert who has achieved level 1.

• Contributor

SAve my life! Thank you so much!

Posted on Jan 13, 2014

• lzhDH Jan 14, 2015

You're my HERO

×

### andi pascu

• Level 1:

An expert who has achieved level 1.

New Friend:

An expert that has 1 follower.

• Contributor

I unlocked it by holding for 5 seconds the button with a circle and an open ellipse next to it, something looking like this: OD

Posted on Dec 03, 2017

### Anonymous

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

Posted on May 18, 2009

### Anonymous

If your hob is siemens then the controls are touch... press the on/off switch for power, then the control pad is yours with

Posted on Sep 07, 2010

### Anonymous

SOURCE: i have a bosch schott

press and hold the power button for a min.

Posted on Dec 19, 2010

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

Posted on Feb 08, 2012

### Anonymous

Are the batteries good?

Posted on May 26, 2012

×

my-video-file.mp4

×

## Related Questions:

### My electric cooktop is not working.there is red light on near lock.it is Schott Ceran[eco friendly. and Gold series

On mine it meant that one of the electric elements has burned out. Try the burners and see if they all work. If not, the element is bad.
May 02, 2018 • Cooktops

### Maytag schott ceran front eye wont get hot

I navigated the SCHOTT website to find a solution and was able to find out how to properly clean my SCHOTT stove top. I would check the Ceran FAQ list to see if your question is answered before anything else.

### Whirlpool schott ceran induction plate doesn't get hot

magnetic gradeI have a SCHOTT Ceran glass ceramic cooktop as well, and soon realized that induction cooktops like this require that your metal cookware be in contact with the surface for them to heat up. Best cookware:
• Cast iron pans
• Any black metal pans
• Stainless steel pans, if base is magnetic grade (magnet sticks to bottom)

### My miele induction schott ceran is being locked, and I can not open it to cook??

Hi,

If you have an illuminated red key symbol on the cooktop, press down where the illuminated red key is, for about 5 seconds. This method works on many Schott Ceran / Miele cooktops including the KM443 listed above.

If this doesn't work, please let me know the correct model number.

Hope this helps.

Regards,
BElectric

### Whirlpool Oven, Ceran stove top

I want to say that since I posted my original problem with black spots appearing on the Schott Ceran top, I took pictures of the top and attached them to a complaint sent to Maytag. Approximately 3 days later, a Maytag representative phoned and offered a brand new top-basically stating that there is a fault with the tops. They would not pay for the labor to replace the top. My husband downloaded the instructions from Maytag website and installed it himself. These spots actually appear from within the surface and are not the result of a boil over, etc. The spots on my burner grew to the width of the burner. If you search the internet, you will see many others with the same problem with the Schott Ceran tops. I will never buy another!
Nov 20, 2007 • Cooktops

9,011 views

Level 3 Expert

Level 3 Expert

Level 3 Expert