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OPERATOR LEDS
Operator LED
Long LED
OFF
ON/RED/
STEADY
ON/RED/
FLASHING
OFF
OFF
OFF
ON/RED/
FLASHING
ON/RED/
STEADY
ON/PURPLE/
STEADY
ON/BLUE/
FLASHING
ON/PURPLE/
FLASHING
Safe-T-Beam® Self-Diagnostic Troubleshooting Chart
Source (RED
Sensor (GREEN
LED)
LED)
ON
ON
OFF
OFF
OFF
ON
2 BLINKS
ON
2 BLINKS
OFF
3 BLINKS
ON
40
LED SIGNALS
Possible Problem
Round LED
Normal operation.
OFF
No response from unit.
ON/RED/
Limits NOT set properly.
STEADY
Program error.
ON/RED/
FLASHING
Component failure.
ON/BLUE/
Remote NOT programmed.
FLASHING
ON/PURPLE/
Remote NOT programmed.
FLASHING
Safe-T-Beam® physical obstruction.
ON/RED/
FLASHING
Safe-T-Beam® signal interference.
Door contact in UP or DOWN travel.
OFF
Door component failure detected.
OFF
Thermal cutout.
ON/PURPLE/
Component error.
STEADY
OFF
Door will not open.
ON/PURPLE/
Radio receiver error.
FLASHING
Possible Problem
Normal Operation
Operator not powered
Wiring from operator bad
Wiring to source missing or bad
Power has been interrupted
Beam not aligned
Beam obstructed
Sensor defective
Wire to sensor missing or bad
Sensor defective
Sensor receiving interference
Solution
None required.
Check power supply.
Contact a trained door system professional.
Re-program limits, see pages 25-26.
Unplug unit, wait 5 seconds, plug in.
Contact a trained door system technician.
Program remote, see page 28.
Program remote, see page 28.
Remote obstruction, recheck unit.
Check alignment of Safe-T-Beam® pair and
nearest other Safe-T-Beam® pair, see page 16.
Remove obstruction.
Check door spring, track, rollers, hinges and
fixtures. Page 37.
DO NOT unplug unit.
Wait until LED clears before operating.
Contact a trained door system technician.
Check Sure-Lock™. Sure-Lock™ should be OFF for
normal operation (see page 4).
Unplug the unit. Wait 5 seconds and plug the unit
back in. If problems persist, contact a trained door
system technician.
Solution
None Required
Check breakers, fuses, plugs
Check wiring for shorts
Check wiring
Remove power and reapply
Check source, Sensor alignment
Check for obstruction
Contact Customer Support
Check wiring
Contact Customer Support
Determine source of interference
Contact Customer Support
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