04/27/2026
We recently completed a service call on a Hörmann TNR rubber door that was experiencing performance issues due to a failed Mitsubishi variable frequency drive (VFD).
After diagnosing the problem, we replaced the VFD, programmed it to match the door’s specifications, and fully commissioned the system. The door is now running smoothly and reliably again.
High-speed rubber doors are advanced systems that require proper setup and expertise. Incorrect repairs can lead to downtime, safety risks, and costly failures.
If your industrial or high-speed door is having issues, we can help.
👉 Learn more about our specialty door services:
https://www.gravitydoors.ca/specialty
👉 Contact us:
https://www.gravitydoors.ca/contact