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6. Single or dual gate
installation gate auto
opens instead of auto
closing
1. In this condition the open time can be controlled by adjusting
the auto close timer adjustment.
2. If installed in the pull to open configuration then control switch
number 2 should be turned “OFF” verify it is. If installed in the
push to open configuration verify switch is turned “ON”.
3. Gate is trying to close too far. Readjust close limit adjust for
gate 1 or gate 2 to the correct stop position.
4. If time before auto opening cannot be adjusted and occurs
in a couple of seconds after closing then the close limit
adjustment of one or both gates is misadjusted. The feature
that is causing the gate to open is the current sense circuit
on the control board. The gate is trying to close farther than
possible and it has traveled to the full extent of the linear
actuator. Verify that linear actuator harness has no cuts or
nicks.
5. Verify correct installation of the universal actuator bracket.
Possible cause is incorrect installation of the gate bracket or
linear actuator bracket. Verify and correct as required.
7. Gate begins to open or
close and stops and
reverses after a couple
of seconds
1. This occurs when the sensitivity circuit on the control board
senses an obstruction. Verify that the gate is not obstructed
by some object at the point where it reverses. Could also be
due to hinges binding or gate contacting ground.
2. This is an adjustable feature and the cause could simply be
an adjustment of the Gate 1 or Gate 2 sensitivity. Turn the
sensitivity adjustment toward a minimum setting and always
set the Gate 1 and Gate 2 adjustment to the same setting on
a single gate installation. In dual gate installation adjust both
as necessary.
8. Pressing the “RESET”
button only, causes the
gate to operate (open,
close and stop) acts like
transmitter.
1. This problem is probably due to a bad receiver.
2. To isolate this disconnect the J3 connector from the control
board.
3. With J3 disconnected see if Reset button causes gate to
operate. If gate no longer operates when Reset is pressed
then the receiver was the cause.
4. Connect J3 back to Sentry control board and see if problem
returns. If problem returns then the receiver is bad.