83
ZN SERIES ACTUATOR
PERIODICAL CHECK UP
Check the correct safety device operation periodically or in any case once a year (see ZH 1/494 April, 1989).
Monthly check up the correct operation of the safety devices, which are sensitive to pressure (for example switch trim). See EN60335-2-95.
Check up
Reaction
Yes/No
Possible cause
Solution
Disconnecting the
motive-power
Stop a door leaf with
a 50 mm high object
during
the door
closing phase.
Emergency release
Follow instructions
described in para-
graph "Emergency
release"
Safety switch trim,
if installed
Open/close the door
by activating
the
switch trim simulta-
neously.
Photocell, if instal-
led
Open/close the door
by interrupting
the photocell simulta-
neously.
- Leave all programmings unchanged
- Reduce the motive-power tolerance. Turn trim-
mer leftwards until the check up has positive
result. Open the door and close it completely
twice keeping it under control. See paragraph:
"Maximum motive-power adjustment ".
- Adjust the door, contact qualified personnel!
- Repair the emergency release.
- Check the door operation, see instructions:
"Door maintenance ".
- Check the cable, re-fasten the terminals.
- Reposition the switch
- Deactivate the installation and exclude the
reactivation. Contact the service personnel.
- Check the cable, re-fasten the terminals.
- Reposition the switch
- Clean the photocell
- Reposition the photocell
- Deactivate the installation and exclude the
reactivation.
- Contact the service personnel.
When the auto-
mation faces the
the object, it
inverts the motion
The door should
be easily opened
and closed
manually (the
door is balanced).
Door reaction
according to
programming of
switch 1, 2 or 3.
Door reaction
according to
programming of
switch 1, 2 or 3.
- The motive-power disconnection
works without limits.
- Trimmer on right limit stop.
Motive-power tolerance pro-
gramming too high.
- The door is not correctly adju-
sted.
- The emergency release works
properly.
- The emergency release is faulty.
- The door got stuck.
- The security switch trim operates
correctly.
- Cable broken, loosened terminal.
- Switch displaced
- Faulty switch trim
- The photocell works correctly.
- Broken cable, loosened terminal
- Switch displaced
- Dirty photocell
- Photocell displaced (bent sup-
port)
- Faulty photocell
Yes
No
Yes
No
Yes
No
Yes
No
TROUBLESHOOTING- DIAGNOSTIC TABLE OF COMMON PROBLEMS
Faults in the garage door operator can be eliminated by following the instructions given in the table below. If you are unable to solve
the problem, please contact your dealer.
Problem Cause(s) Solution(s)
The door cannot be moved either
manually or electrically.
The automatic device does not work and
there is no light.
The automatic device does not work when
the remote control is used.
The door stops while closing, moves back
approximately 10 cm and then stops
again.
The door stops while opening.
The door can only be used if the button is
pressed, and the internal light flashes.
No light can be seen during opening and
closing of the door.
The speed changes during the opening
and the closing phase.
- Enable the emergency release (N) and
open the door manually.
See paragraph "Emergency release".
- Check using another electrical device, for
example a tester.
- Replace the fuse.
- Replace the battery
- Code the remote control. See paragraph
"Coding the remote control".
- Remove the obstacle and open the door
completely
- Adjust the limit switch again.
- Remove the obstacle and close the door
completely
- Adjust the limit switch again.
- Remove the obstacle, then move the
door to the final position, and the opera-
tor will once again work normally.
- Replace the bulb.
- Normal slowing down
- Clean the guide and lubricate it again
- Clean the guide and lubricate it again
- Tighten the chain
- There is a power cut
- The fuse in the garage power circuit has
blown
- The remote control battery is low.
- The remote control has not been cor-
rectly coded.
- Forced stoppage has been triggered due
to the presence of an obstacle.
- Limit switch badly adjusted.
- Forced stoppage has been triggered due
to the presence of an obstacle.
- Limit switch badly adjusted.
- Forced stoppage has been triggered due
to the presence of an obstacle.
- Blown lamp
- The automation starts slowly and then
accelerates.
- The chain guide is dirty
- The chain guide has been lubricated
with the wrong type of oil
- Chain not correctly stretched.
