It does have a child lock. Page 14 in the instructions says “5.8 Child Lock The drying machine has a child lock which prevents the programme flow from being interrupted when the buttons are pressed during a programme. When the child lock is activated, all buttons on the panel except the On/Off/Programme selection knob are deactivated. Press the End Time and Buzzer buttons simultaneously for 3 buttons to activate the child lock. The child lock has to be deactivated to be able to start a new programme after the current programme is finished or to be able to interfere with the programme. To deactivate the child lock, keep the same buttons pressed for 3 seconds”
Hope this helps solve the problem
Don