Microwave displays E015 and the clock resets intermittently or the unit loses power briefly.

Safety: Unplug the microwave before internal inspection.

External checks:

• Test the wall outlet with another appliance to confirm stable power.
• Inspect the Neff microwave's power cord and plug for damage or overheating.

Internal checks:

• Remove the outer cabinet and inspect the mains input block and EMI filter for loose terminals or burn marks.
• Tighten any loose spade connectors and reseat plugs.
• If the mains filter shows signs of damage, replace it.

If power interruptions continue despite solid connections and a good supply, the control board's power supply section may be failing and should be replaced.