24
TROUBLESHOOTING
Unit is dead
Unit beeps once when triggered and will only open
on second trigger
Unit does not respond to remote transmitter
In all cases of testing, remove all wires from the (+), (C), (L), (Bt) and
(Bm) terminals first.
If unit operates correctly after completing this, begin re-wiring one
at a time until the problem manifests again.
AC fail or fuse blown
Check 220V AC mains is
present
Check mains fuse 5Amp
Mains failure occured while
door was closed
This is an indication that the
processor has checked for
the close limit. All operations
after the first trigger will not
be affected and the unit will
operate normally. This will
occur every time power is re-
instated.
Transmitter battery flat
Transmitter not
programmed into
onboard receiver
Transmitter not coded to
external receiver
Wiring fault between external
receiver and control card
Check transmitter battery.
Replace if necessary.
Check programming of
onboard receiver (see page
20)
Check coding of external
receiver.
Check wiring of external
receiver (Fig. 17.1)
