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Fläkt malfunction

Fläkt ventilation unit no longer spinning

Is your Fläkt ventilation unit or HRV unit no longer spinning at all? Then the cause could be with the motor, bearings, circuit board, power supply, or control system. In many cases, repair or overhaul is still possible.

Problem Motor no longer spinning
  • No air displacement
  • Motor not starting
  • Motor overhaul often possible
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What do you notice?

  • The ventilation unit is unresponsive.
  • There is no or hardly any air displacement.
  • The motor tries to start but doesn't get going.
  • The ventilation unit remains completely silent or only hums.

Possible causes

  • Defective or seized motor.
  • Worn bearings or stiff-running components.
  • Problems with the circuit board, power supply, or control system.
  • Wear or contamination of the ventilation motor.

Can the motor still be repaired?

In many cases, yes. When the motor, bearings, or rotating components are defective, overhaul can often be a cost-effective and sustainable solution.

Choose the right solution

Fläkt motor overhaul View repairs → More about Fläkt overhaul View overhaul page →

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 overhaul 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 making noise Noise, vibrations and wear Fläkt humming Constant hum or resonance Fläkt no longer spinning Motor not starting or unresponsive Fläkt not extracting properly Poor extraction or moisture problems Fläkt 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 Fläkt ventilation system.

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