Vacuum cleaner has low suction

Suction has dropped suddenly or gradually while the motor sounds normal.

Safety rule: stop when there is smoke, sparking, a burning smell, electric-shock signs, an active leak, cracked hob glass or suspected gas. Disconnect only when it is safe to do so.
Caution level: medium

Possible fault areas

  1. Full bag or bin
  2. Blocked filter
  3. Blocked hose or floor head
  4. Leaking connection

The order does not confirm a failed part. Different causes can create the same symptom.

Safe checks

  1. Empty the bin or replace the bag
  2. Clean or replace filters as instructed
  3. Check the hose for blockage with power disconnected
DIY diagnostic boundary: Do not use without required filters or for hot ash or liquids unless designed for that purpose.

Step-by-step diagnosis

1. Record the conditions

Check whether the symptom happens every time, only in a certain programme or after some running time.

2. Record information

Save the error code, full model and all messages before resetting.

3. Perform user checks

Use only the steps above and tasks allowed by the manual. Do not remove the cabinet.

4. Decide the next step

If the symptom returns, stop the appliance and prepare a technician report.

Run diagnosis

Check safety stops and save the result.

Technician report

Organise model, code and conditions.

All vacuum cleaner symptoms

Open the appliance page.

Frequently asked questions

Can I continue using the appliance?

Only when there are no hazard signs, the manual allows it and the symptom is not worsening. Stop whenever uncertain.

Does this symptom identify one specific part?

No. Without measurements and inspection, several causes can create the same symptom. UsterkaTo shows areas to investigate.

What should I tell the technician?

Full model, code, stage of occurrence, repeatability, safe steps and any smoke, smell, leak or breaker information.