Start here for access to our Knowledge Base to get answers to over one hundred thousand questions online in seconds.Find Answers
...See what we've been doing in some of our major markets.Find your Location
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
What does a flashing H mean on the ATV21 and ATV212 drives?
Altivar 21 and 212
Flashing H and he drive resets
The flashing H means the drive controller is approaching an overheating fault.
Check the heat sink cooling on the drive. If this is an S-Flex check for anything that might restrict air flow near the top of the drives vent and still check the drives cooling fan.