LED lights on the brush head do not turn on, but the brush still spins.

Safety first: Remove the battery and detach the brush head.

• Inspect head: Look for visible damage or cracks near the LED area.
• Check connection: Ensure the head is fully seated on the wand and contacts are clean.
• Functionality check: If the brush spins normally, the issue is cosmetic (lighting only).
• Replace head if lighting is important: The LED circuit is not usually serviceable separately; replace the motorized head if you need the lights.