Philips Airflow Restriction / Filter Clogging

Cordless vacuum has very weak suction but motor sounds normal

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Possible Causes

Clogged pre-motor filter, Blocked cyclone assembly, Clogged extension tube or hose, Severely clogged HEPA exhaust filter

How to Fix / Troubleshooting

Safety first: Turn OFF the vacuum and remove the battery or ensure it is switched off before cleaning.

  • Step 1 – Empty dust bin: Remove and empty the dust container. Tap gently to remove fine dust.
  • Step 2 – Clean pre-motor filter: Remove the foam or fabric filter. Tap it over a bin. If the manual allows, rinse with lukewarm water and let it dry completely (24 hours) before reinstalling.
  • Step 3 – Check cyclone and ducts: Inspect the cyclone cone and inlet/outlet ports for compacted dust. Use a soft brush to clean.
  • Step 4 – Inspect tube and nozzle: Detach the extension tube and nozzle. Look through them against light to spot blockages. Push out debris with a flexible rod or broom handle (do not puncture the plastic).
  • Step 5 – Clean or replace HEPA filter: Remove the exhaust filter, tap gently, and replace if heavily clogged.
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Repair Difficulty

Very Easy 1/5

Required Part

Pre-Motor Filter
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