Henry Air Leak or Motor Bearing Noise

Vacuum makes a loud high‑pitched whine during use

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Damaged or missing seals around dust bin, Cracked hose or wand, Worn motor bearings, Loose motor mounting

How to Fix / Troubleshooting

Safety first: Remove the battery pack before inspecting for damage.

Step-by-step:

  • 1. Check bin seal: Remove and refit the dust bin, ensuring the rubber or foam seal is clean and seated correctly. Replace if torn or flattened.
  • 2. Inspect hose and wand: Look for splits, holes, or loose joints that could cause whistling air leaks.
  • 3. Isolate motor noise: Run the vacuum briefly without the hose attached. If the high‑pitched noise remains, it is likely from the motor or internal seals.

If the noise is clearly from the motor and is accompanied by a burning smell or vibration, the motor bearings may be failing. Continued use can lead to complete motor failure; seek professional service.

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Repair Difficulty

Medium 3/5

Required Part

Motor Unit Assembly
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