Milwaukee Wet Pickup Configuration or Float Valve Issue

Vacuum will not pick up liquids even though it is a wet/dry model.

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Possible Causes

Dry-use filter installed instead of wet filter, Float valve stuck in closed position, Blocked liquid inlet, Incorrect canister setup for wet use

How to Fix / Troubleshooting

Safety first: Remove the battery and unplug any charger. Do not submerge the tool or motor housing in water.

  • 1. Verify wet/dry capability: Confirm your Milwaukee cordless vacuum model is rated for wet pickup.
  • 2. Configure for wet use: Remove any paper or HEPA dry filter if the manual requires a different filter or no filter for wet pickup. Install the correct foam wet filter if specified.
  • 3. Check float valve: Open the canister and locate the float assembly. Ensure it moves freely and is not stuck in the raised (closed) position.
  • 4. Clear inlet: Inspect the liquid inlet path for debris or dried material blocking flow.
  • 5. Do not overfill: Stop wet pickup before the liquid reaches the max fill line to prevent the float from closing prematurely.
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Repair Difficulty

Easy 2/5

Required Part

Float Valve Assembly / Wet Filter
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