Milwaukee Major Air Leak or Disconnected Suction Path

Vacuum motor runs but there is no suction at the nozzle.

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Possible Causes

Hose disconnected inside canister lid, Cracked canister body, Missing or misinstalled filter causing bypass, Internal seal between motor and canister dislodged

How to Fix / Troubleshooting

Safety first: Remove the battery before opening the canister or lid.

  • 1. Verify hose connection: Ensure the hose is firmly locked into the canister port. Remove and reinsert until it clicks.
  • 2. Inspect canister and lid: Look for visible cracks or holes in the plastic body. Check that the lid is fully latched on all sides.
  • 3. Check internal hose connection: On some models, the hose connects to an internal stub inside the lid. Remove the lid and verify the internal connection is secure.
  • 4. Confirm filter placement: Make sure the filter is installed correctly and not leaving a large gap where air can bypass.
  • 5. Replace damaged components: Replace cracked canister, lid, or internal seals as needed to restore a sealed airflow path.
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Repair Difficulty

Easy 2/5

Required Part

Canister Body / Hose Port Seal
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