Zehnder ventilation units
Zehnder repair and overhaul
Do you have a Zehnder ventilation unit, HRU, or ventilation motor that is making noise, humming, not extracting well, or no longer running? In many cases, immediate replacement is not necessary. The motor can often be overhauled or repaired.
- Mechanical ventilation units
- HRUs and ventilation motors
- Motor overhaul often possible
Popular Zehnder product groups
- Mechanical ventilation units
- HRUs
- ComfoFan and ComfoAir systems
- Ventilation motors and parts
Common problems
- Zehnder ventilation unit is noisy
- Zehnder ventilation unit hums or vibrates
- Zehnder motor no longer runs
- Zehnder HRU doesn't extract well
- Bearings or motor components are worn
Which Zehnder models can we overhaul?
We can overhaul the motors of many Zehnder ventilation systems, including mechanical ventilation units, HRUs, and older Stork/Zehnder systems. This includes models like ComfoFan, ComfoAir, and various older ventilation motors.
Not sure which Zehnder model you have?
Use our troubleshooting guide or send us a photo of the nameplate. We'll be happy to help you find the best overhaul or repair for your Zehnder ventilation unit or HRU.
Start troubleshootingOverhaul or replacement?
Many Zehnder systems can still be technically restored. When mainly the motor, bearings, or rotating parts are worn, an overhaul is often a cost-effective and sustainable alternative to complete replacement.
Choose the right solution
Is your problem or model not listed?
Use our troubleshooting guide or parts finder. We are happy to help you find the right solution.
Start troubleshooting Find parts
