Timer or delayed start does not work correctly; cooker starts immediately or not at all.

Step 1 – Confirm programming steps:

• Review the Klarstein manual to ensure the delay timer is being set correctly (order of time selection and program selection matters on some models).

Step 2 – Power stability:

• Avoid unplugging or power cycling the cooker during the delay period.

Step 3 – Firmware/PCB:

• If the timer consistently misbehaves despite correct use, the main control PCB may have a faulty clock circuit; replacement is required.