Troubleshooting
[B867400_1] - EN / 20.07.11
Page 13 of 16
Subject to change without notice
8
Troubleshooting
CAUTION
Injury or damage to persons or property
resulting during troubleshooting!
Problems with no reference to a qualified
specialist or certified electrician may be
rectified independently.
Other problems are only to be dealt with
by a qualified specialist or certified electri-
cian.
Problem
Possible causes
Remedy
External venetian blind motor is
not functioning
Motor is malfunctioning.
Motor change (specialist only)
On-site motor connection is incorrect.
Reconnect as per wiring diagram
(certified electricians only)
Motor thermal protection switch has
triggered
Wait 10 to 15 minutes, then try again
There is no current
Check the power fuse (certified
electricians only)
A higher-level control command is
present
Await switch on/off delay
Bottom rail does not move to limit
positions
Limit positions of the motor are
incorrect.
Readjust the motor again (specialists
only)
Guide rail is soiled
Remove soiling
The external venetian blind
moves up or down erratically
Blockage in the vicinity of the guide
Move the product up (down) slightly
and then move it back down (up)
If the fault occurs again: Fully raise
the external venetian blind and inform
the qualified specialist.
Blockages in the area of the polyam-
ide-sheathed steel wire cords
