26
When AUT jumper replaced for auto-close operation,
unit beeps 3 times and auto-opens
Unit will not close
Motor and limits configu-
ration in reverse
Swop motor reverse and
forward wiring and swop limit
switch wiring as per page 9.
Beams input triggered
Remove obstacle from door
travel
Check beam alignment
Check beam cabling
Check beams wiring (see
page 17)
Door has swelled and is
jamming or door weighted
because of water retention
Door out of balance
Unit hung incorrectly
Maintain door weather-
proofing by means of oiling,
varnish or sealant - contact
door manufacturer
Contact door manufacturer
Re-hang as per type of door
installation (see page 10-11)
Door stops and reverses while closing or stops and
remains stopped while opening
Load setting too
sensitive
Door operation not smooth or
not free of snags
Reset loads (see “Using
Additional Features” on page
22)
Clear any obstruction/
contact door manufaturer
TROUBLESHOOTING