Vacuum intermittently loses power when the wand is twisted or moved.

Safety first: Remove the battery pack before inspecting the wand and nozzle.

• Recreate the fault: With the vacuum assembled, gently twist and move the wand while running (short tests only). If power cuts in and out, the wand wiring is suspect.
• Inspect connectors: Remove the wand and check the electrical contacts at both ends for corrosion or looseness. Clean with a dry cloth.
• Check for visible damage: Look for kinks, cracks, or crushed areas along the wand that may indicate internal wire damage.
• Replace wand assembly: Internal wire repair is difficult and unreliable. Replace the entire Tristar wand if intermittent power persists.