Unit vibrates excessively or feels unstable when moving over carpet.

Safety first: Unplug before inspecting the brush and wheels.

• Clean brush roll: Remove the brush and clear any unevenly wrapped hair or fibers that can cause imbalance.
• Inspect brush for warping: Replace the brush roll if it appears bent or out of round.
• Check wheels: Inspect front and rear wheels for flat spots or damage. Replace worn wheels.
• Retighten screws: Check and tighten all accessible housing and nozzle screws.