Beeping continues and cooker will not start; display may show a child lock icon.

Step 1 – Disable child lock:

• Refer to your Klarstein manual; typically, press and hold a specific button (often 'Keep Warm' or a lock icon) for 3–5 seconds to toggle the lock.

Step 2 – Check for stuck buttons:

• Press each button firmly to ensure it returns properly.
• If a button is stuck, clean around it; if still stuck, the keypad assembly may need replacement.

Step 3 – Power reset:

• Unplug for 10 minutes and reconnect to clear any firmware glitch.