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Troubleshooting
PROBLEM
• To monitor operation of the bar, it is quite easy to see the red LED light
• If the red LED does not turn on and you don't hear a click, try the backup switch. If the door does not
The door will not
release when the
bar is touched
• If the red LED does turn on and you can hear this click and the door does not release, try the backup switch.
• If you see the red LED turn on and hear a click when you touch the bar but the lock remains released, the
• If you see red LED on and don't hear a click, the sensor is probably adjusted too high (review
• The most likely cause for the relay to remain energized is that the sensor "sees" an overwhelmingly large signal
The door remains
released constantly
• Certain large electronic noise sources can "swamp" the sensor although this is rare. Examples
• Finally, in very rare instances, the sensor can "hang up" in a condition that continuously releases the
indicator and hear the relay click when the bar is touched.
release from the backup switch, it is almost certain that the overall wiring of the installation is at fault.
If the door releases from the backup switch, the general wiring is correct but the sensor is not reading
your touch. Make sure you understand section Adjusting Sensitivity on how to adjust sensitivity of
the bar. It may be set too low. Another fault could be that the sensor itself is not receiving 12-24 DC
power on the red and black wires. Check the power supply and, be sure the input polarity is correct.
Also, even if power is being applied on the red and black wires, it's possible that it's not getting into the
sensor. Check the connector block that plugs into the sensor card for loose wires. Finally, it is possible
that the ring terminal that connects the sensor to the bar itself has come loose. See Diagram 8.
If the door still doesn't release, the problem must be in the installation wiring as it is nearly impossible to have a
failed sensor relay and backup switch at the same time. Review your wiring to make sure the sensor is correctly
applied in the circuit. If you see the red LED turn on and you hear the click but only the backup switch releases the
door, call the factory as the defect appears to be in the relay contacts and the sensor will have to be replaced.
problem is probably in the wiring which should be reviewed to be sure the sensor is correctly applied in the circuit.
Adjusting Sensitivity). Rotate the adjustment pot counter-clockwise while not touching the
bar. If this doesn't lock the door, some effect is probably keeping the relay de-energized all the
time (remember: the relay is energized when the lock is secure to maintain fail safe operation).
as if someone was continually touching the bar. This will happen if the bar is not properly isolated from a metal
door. Because of the plastic end pieces, the intrinsic isolation of the bar from the door is many times greater than
it needs to be. Make sure that there is no "foreign object" creating a conductive path from the bar to the door.
An example would be metal blinds. The same effect will occur if the bar is used outside in the rain or if water is
flowing down the inside of the door. This overcomes the electrical isolation needed between the bar and door.
would include large radio or radar transmitters in the building or a high voltage neon sign mounted
within a few feet of the door. Call the factory if you suspect noise induced problems.
door. De-power the unit and turn the adjustment pot all the way counterclockwise. Then, re-power
the unit and note that the door locks. Then, readjust the sensor potentiometer normally.
SOLUTION
7 of 8
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