Problem
Possible Cause
Solution
Gate Won’t Open
The input that is being used to
open gate is being secured by
the security timer
Open limit tripped/active
Low Power – set on FIRE
Option
Stop command active
Close command active
Abort command active (Option
1 or Option 2)
Monitored Photoeye Open or
Edge command active
Blown Battery Fuse
Over Current on Accessory
Output Power
Gate is in UL325 entrapment
No Power
Encoder Failure
Option 1 or 2 active
Force Delay set to low
Comm. lost to other operator
board
Check the Display and all
LED’s
Check if security timer is active
and what inputs are being
secured.
Verify limit position / reset
limit
Check battery voltage and F4
Fuse
Remove stop signal / input
Remove close signal / input
Remove abort signal / input
Check Open Photoeye or edge
for activation/failure
Check both board fuses
Check and remove shorts or
over voltages
Survey the area surrounding the
gate – when clear, activate the
Master Reset button / terminal
Check for any indication of
power supplied
Operate gate and view the
“blinking” output from the
Tach input
Verify Option 1 and Option 2
settings and remove contact
Increase force delay time to at
least 0.5 seconds
Verify communication via the
M/S LED’s and the MC4
Display
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