48
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EN
Fault
20. What to do if... ?
Cause / solution
... the roller shutters stop during
downward travel?
a) The roller shutters may have hit an
obstacle.
Move the roller shutters back up and
remove the obstacle.
b) The roller shutters are too light.
Increase the weight of the roller shutters
by, for example, adding a piece of at
steel to the bottom slat.
... the roller shutters stop suddenly
during upward travel?
a) The drive is jammed, for example, due
to the roller shutters freezing up or
other obstacles.
b) The roller shutters may not be running
sufficiently smoothly. Check the roller
shutters and roller shutter guides.
c) The roller shutters may be too heavy.
The maximum tractive force of the belt
winder has been exceeded, see page 50.
... the belt winder fails to operate in
any direction (up or down)?
The maximum running time of the drive has
been exceeded, see page 35 and page 50.
The motor is too hot.
The belt winder will be operational again in
approx. 30 minutes.
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