The key symbol indicates child lock has been activated.
Press and hold the clock button until the key symbol goes out.
You'll then be able to use the appliance.
If the programme has been changed, you need to set it to the programme it was on when child lock was enabled.
Only then will it unlock.
Can I ask you to take a moment and rate my responses so far? Please use the smiley faces which you should now see. Please remember you are rating me personally, not the website or the problems you have had with this machine.This will not close your question and you can still come back to me if you need more helpThanksRob