I've been running for many years the Rademacher-Rollotrons (type 9700 or Vorgägnermodelle). To date, the following defect has after several years of operation, always clearly far out of warranty, shown: The drive motor is always "tired", it needs a relatively long time until he talks or moves very slowly the shutters up. The response time is sometime so long that a start on the switch no longer works, later the engine no longer starts. Presumably it is a aging of components in the Srtomversorgung - the unit must be replaced. The benefits of the device (comfort and safety) moves me again and again to renew!
