Oven beeps and shows E19; some functions may be disabled, often related to child lock or safety interlock issues.

Safety first: If the oven is hot, allow it to cool before working on door components. Disconnect power before removing panels.

Steps:

• Consult the user manual to disable the child lock (usually by holding a specific key combination for several seconds). Attempt this first.
• If E19 persists, inspect the door switch or latch sensor. Remove the front trim to access the switch and test it with a multimeter for correct open/closed operation when the door moves.
• Adjust or replace the door switch if it does not change state reliably.
• Perform a power reset by disconnecting the oven for 5–10 minutes, then restoring power.
• If the error remains, the control board may have a firmware or logic fault and may need replacement.