Stork Air malfunction
Stork Air ventilation unit making noise
Is your Stork Air ventilation unit, HRV unit or roof fan making more noise than usual? A humming, grinding, rattling or whistling sound often indicates wear, fouling or imbalance.
- Humming or grinding sound
- Vibrations or resonance
- Overhaul often possible
What do you notice?
- The ventilation unit makes more noise than before.
- You hear a humming, grinding, rattling or whistling sound.
- The sound gets louder at a higher setting.
- The unit vibrates or resonates through the wall, floor, ceiling or duct.
Possible causes
- Worn bearings or rotating parts.
- Dirt, dust or imbalance in the motor or fan.
- Wear on motor, rubbers or mounting points.
- Age of the ventilation motor or motor plate.
What can you safely check yourself?
Listen carefully to the type of sound. A grinding or whistling sound often indicates bearings, while humming or vibrating can also be caused by imbalance, fouling or resonance. Always de-energize the unit before opening or inspecting it.
Are you unsure about the cause?
Use our troubleshooting tool to determine step-by-step which malfunction best suits your Stork Air system.
Start troubleshooting toolWhen is an overhaul possible?
Overhaul is often interesting when the noise is caused by wear to bearings, motor components or rotating parts. Many Stork Air motors can be overhauled, meaning replacement is not always necessary.
Choose the right solution
Is your problem or model not listed?
Use our troubleshooting tool or parts finder. We are happy to help you find the right solution.
Start troubleshooting tool Find a part