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Fläkt malfunction

Fläkt ventilation unit not extracting properly

Is your Fläkt ventilation unit or HRV unit extracting less effectively? Does moisture linger, or do you notice little air movement? The cause could be contamination, wear and tear, a motor problem, or a malfunction in the control system.

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

  • Little extraction in the bathroom, kitchen, or toilet.
  • Moisture lingers longer after showering.
  • Cooking smells dissipate less quickly.
  • The ventilation unit is running, but moving little air.

Possible causes

  • Contaminated valves or ventilation ducts.
  • Worn motor or bearings.
  • Problems with the control or operation.
  • Contaminated fan or impeller.

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.

Choose the right solution

First check for malfunction Start troubleshooting → Fläkt motor overhaul View repairs →

Read more about Fläkt

Also check out our other information pages about Fläkt ventilation units, HRV units, parts, malfunctions, and overhauls.

Fläkt ventilation units Main page of the Fläkt knowledge center Mechanical ventilation units Information about mechanical ventilation units and overhauls HRV units Heat recovery and HRV systems Fläkt overhaul Everything about motor overhaul and repair Fläkt parts Motors, circuit boards, sensors, filters, and parts Fläkt is noisy Noise, vibrations, and wear and tear Fläkt hums Constant hum or resonance Fläkt is no longer rotating Motor does not start or does not respond Fläkt is not extracting properly Little extraction or moisture problems Fläkt bearings worn Grinding or squealing motor due to wear and tear

Is your problem or model not listed?

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

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