Morphy Richards oven shows E20 and beeps continuously; no functions can be selected.

Safety first: No internal access is required initially.

Steps:

• Disable child lock: On many Morphy Richards ovens, press and hold the Stop/Cancel and Clock buttons together for 3–5 seconds (or consult your user manual) to toggle the child lock.
• Power reset: Turn off power for 5 minutes, then restore. Try the lock sequence again.
• Check for stuck keys: If certain buttons do not respond or appear permanently pressed, clean the panel and, if necessary, replace the control fascia / keypad assembly.
• Firmware fault: If E20 persists, the electronic control board may require replacement.