Display shows E06 and the microwave will not start; sometimes appears after a power surge or lightning storm.

Safety: Unplug the microwave before touching any internal parts.

Reset attempt (user-level):

• Unplug the microwave for at least 5 minutes to allow internal capacitors to discharge.
• Plug it back in and check if E06 clears.
• If the error persists, do not repeatedly cycle power; further diagnosis is needed.

Technician-level checks:

• Remove the control panel and inspect the main control PCB and display board for burn marks, swollen components, or corrosion.
• Reseat ribbon cables and connectors between the display and main board.
• If available, perform a firmware reset or update according to Balay service documentation.
• Replace the control PCB if physical or functional damage is confirmed.

Because this involves low-voltage electronics rather than high-voltage, it is safer than HV work, but still should be done by a trained technician to avoid damaging the appliance.