28
Link arm flips over on top of door when unit starts to
close (tip-up type doors)
Link arm twists and bends out of shape when
closing door
Door opens too far
Unit hanging angle is
incorrect
Put rubber stoppers on the
door to stop against the lintel
and prevent the door from
over-opening
Re-hang unit as per pages 10
to 16
Link arm mounted too tight
in sledge and door mount
bracket
Loosen up fastening bolts on
either end of link arm
Unit runs fine for a while then will not operate for a
time
Motor has overheated
due to extended use. The
thermal cutout is now
active.
NOTE: This unit is not
designed for heavy traffic,
rather for domestic
purposes only.
Re-specify the motor make
and model for high-duty
cycle (heavy traffic)
application
Use timed switching device
to keep door open via the
beam input during heavy
traffic activity time periods
If you encounter any further problems, please contact the technical
support team at the supplier of your E.T. products or e-mail us
directly: [email protected]
TROUBLESHOOTING
