Microwave turntable does not rotate, but heating still occurs; no error code shown.

Safety: Unplug before working inside.

User checks:

• Remove the glass tray and roller ring. Clean the cavity floor and roller track.
• Inspect the roller ring for broken wheels and the turntable coupler for cracks.
• Reassemble and test. If it still does not rotate, proceed to motor checks.

Motor replacement (competent DIY):

• Access the turntable motor from the underside or inside base, depending on the Neff model.
• Disconnect the motor wires and remove the mounting screws.
• Install a new Neff-specified turntable motor and reassemble.

After replacement, ensure the glass tray sits correctly on the coupler and roller ring.