75.5049.02 20060605
Page 4 of 4
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
COMPANY
CONTACT
TROUBLE-
SHOOTING
Red LED does not
come on during the
closing cycle
1. Red and black wires are reversed
(polarity sensitive)
2.
AC motor application: in-line
resistor not installed
3. Faulty input power or data
1. Reverse the polarity of the motor wires
2. Check voltage supply to LO-21K: 12-24
Volts AC / 15-24 Volts DC
3. Check continuity on orange, brown, red
and black wires
Door will not open or
close (green LED is on)
1.
Lockout safety beams are
blocked
2. Faulty safety beam receiver or
transmitter
3.
Faulty power supply to safety
beam
4. Faulty safety beam wiring
1.
Remove any obstructions with safety
beam path
2. Check all safety beam related wiring
3.
Test the safety beams for proper
operation
Door will not recycle
open when activated
during the closing cycle
1. Lockout time is not long enough.
Red LED goes out before door
gets fully closed.
2. Data wires are reversed at the
Bodyguard / DK-12
1. Increase the lockout time. Refer to
Dipswitch chart on Page 4.
2. Reverse the data wires at the Bodyguard
/ DK-12
3. Check continuity on the data wires (red
wire and red/white striped wire)
Green LED does not
come on when safety
beams are blocked
1. Faulty safety beam receiver
2. Faulty connection on purple and
gray wire from LO-21K
1. Test beams and LO-21K with multi-meter
2. Perform continuity test on purple and
gray wires
Improper voltage
reading on data lines at
LO-21K
1. Incorrect wiring at LO-21K
2. Faulty LO-21K
1. Check to ensure that the polarity is correct
at terminals 6 & 7 on the Bodyguard.
2. If data line voltage remains constant at the
LO-21K for the open and closed positions,
and all wiring is Ok, replace faulty LO-21K
Do not leave problems unresolved. If a satisfactory solution cannot be achieved after troubleshooting a problem, please call B.E.A.,
Inc. If you must wait for the following workday to call B.E.A., leave the door inoperable until satisfactory repairs can be made. Never
sacrifice the safe operation of the automatic door or gate for an incomplete solution.
The following numbers can be called 24 hours a day, 7 days a week. For more information, visit
www.beainc.com
.
West: 1-888-419-2564
Mid-West: 1-888-308-8843
South-East: 1-800-407-4545
North-East: 1-866-836-1863
US and Canada: 1-866-249-7937
Canada: 1-866-836-1863
OBSOLETE
