Troubleshooting
[B867213_0] - EN/ 25.09.09
Page 9 of 12
Subject to change without notice.
9
Troubleshooting
CAUTION
Injury or damage to persons or property
resulting from troubleshooting.
Problems with no reference to a qualified
specialist may be rectified independently.
Other problems are only to be dealt with by
a qualified specialist.
Problem
Possible causes
Remedy
Motor is not operating.
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
End rod does not move
to limit positions
Motor switch-off positions are incorrect
Readjust the motor (specialists only)
Soiling is obstructing the guide rail
chambers
Remove soiling
Motor limit positions were lost
Readjust the limit positions (qualified
specialists only)
The bottom rail is at a
slant/curtain is wavy
Lifting tape is torn
Replace the lifting tape (specialists only)
Guide rails are not parallel
Adjust the guide rails according to specifica-
tion (specialists only)
Tab. 2:
Overview of possible problems
