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Vasco malfunction

Vasco ventilation unit not extracting properly

Is your Vasco ventilation unit or HRV unit not extracting properly? Does moisture linger, do odours disappear less quickly, or do you notice little air displacement? The cause could be contamination, wear and tear, a motor problem or a malfunction in the control system.

Problem Poor extraction
  • Little air displacement
  • Moisture lingers
  • Motor overhaul possible
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What do you notice?

  • Little extraction in the bathroom, kitchen, or toilet.
  • Condensation persists longer.
  • Odours disappear less quickly.
  • The ventilation unit is running but provides little air displacement.

Possible causes

  • Contaminated valves or ventilation ducts.
  • Worn motor or bearings.
  • Problem with the switch or control system.
  • Contaminated fan or impeller.

What can you check yourself?

Check if the valves are clean and if the ventilation unit responds when you select a different ventilation setting. Also check if the filters (for HRV units) are clean. If the extraction remains insufficient, the cause may lie with the motor or fan.

Not sure where the problem lies?

Use our troubleshooter. It will help you determine, step by step, why your Vasco ventilation system is not extracting properly.

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When is an overhaul necessary?

If the ventilation unit has been thoroughly cleaned but the extraction remains insufficient, wear and tear on the motor or bearings may be the cause. In many cases, an overhaul is then a cost-effective alternative to replacement.

Choose the right solution

First check for malfunction Start troubleshooter → Vasco motor overhaul View repairs →

Read more about Vasco

Also view our other information pages about Vasco ventilation units, HRV units, parts, malfunctions, and overhauls.

Vasco ventilation units Main page of the Vasco knowledge center Mechanical ventilation units Mechanical ventilation units and motor overhaul HRV units Heat recovery, motors, and repair Vasco overhaul Everything about motor overhaul and repair Vasco parts Motors, circuit boards, capacitors, and other parts Vasco makes noise Noise, vibrations, and wear Vasco hums Constant humming sound or resonance Vasco is no longer running Motor does not start or does not respond Vasco is not extracting properly Little extraction or moisture problems Vasco bearings worn Grinding or screeching motor due to wear

Is your problem or model not listed?

Use our troubleshooter or parts finder. We are happy to help you find the right solution for your Vasco ventilation system.

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