Black+Decker Airflow Reversal / Nozzle Blockage

Vacuum spits debris back out of the nozzle while in use

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Possible Causes

Partial blockage near nozzle, Overfilled dust bin, Incorrect assembly of bin or cyclone, Damaged internal flap valve

How to Fix / Troubleshooting

Safety first: Remove the battery before clearing blockages.

  • Empty bin: Ensure the dust bin is emptied before it reaches the max fill line.
  • Check nozzle and wand: Look for clogs near the nozzle opening and in the lower wand. Clear any obstructions.
  • Inspect cyclone assembly: Make sure the cyclone and bin are assembled correctly and seated firmly.
  • Check flap valves: Some models have rubber flaps to prevent backflow. Inspect for tears or deformation and replace if damaged.
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Repair Difficulty

Easy 2/5

Required Part

Dust Bin / Cyclone Assembly / Flap Valve
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