Motor

 

Unit

 

Installed

 

Safety Reversing

 

Sensor

“Learn”

 

Button LED

 

or Diagnostic

 

LED

Your garage door operator is programmed with self-

 

“Learn”

diagnostic capabilities. The “Learn” button/diagnostic LED will

Button

flash a number of times then pause signifying it has found a

 

potential issue. Consult Diagnostic Chart below.

Diagnostic Chart

1 FLASH

Symptom: One or both of the Indicator lights on the safety reversing sensors

Safety reversing sensors

do not glow steady.

• Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/white

wire open (broken or

wires reversed), broken or disconnected wires, replace/attach as needed.

disconnected).

• Disconnect all wires from back of motor unit.

OR

• Remove sensors from brackets and shorten sensor wires to 1-2 ft (30-60 cm) from

2 FLASHES

back each of sensor.

• Reattach sending eye to motor unit using shortened wires. If sending eye indicator

 

light glows steadily, attach the receiving eye.

Safety reversing sensors

• Align sensors, if the indicator lights glow replace the wires for the sensors. If the

wire shorted or black/

sensor indicator lights do not light, replace the safety reversing sensors.

white wire reversed.

 

 

 

3FLASHES Symptom: LED is not lit on door control.

Door control or

• Inspect door control/wires for a short (staple in wire), replace as needed.

• Disconnect wires at door control, touch wires together. If motor unit activates,

wire shorted.

replace door control.

 

 

• If motor unit does not activate, disconnect door control wires from motor unit.

 

Momentarily short across red and white terminals with jumper wire. If motor unit

 

activates, replace door control wires.

4 FLASHES

Symptom: Sending indicator light glows steadily, receiving indicator light is

Safety reversing sensors

dim or flashing.

• Realign receiving eye sensor, clean lens and secure brackets.

slightly misaligned

• Verify door track is firmly secured to wall and does not move.

(dim or flashing LED).

 

5 FLASHES

Symptom: Motor has overheated; the motor unit does not operate = Motor unit

Motor overheated or

hums briefly; RPM Sensor = Short travel 6-8" (15-20 cm).

• Unplug unit to reset. Try to operate motor unit, check diagnostic code.

possible RPM sensor

• If it is still flashing 5 times and motor unit moves 6-8" (15-20 cm), replace

failure. Unplug to reset.

RPM sensor.

 

 

• If motor unit doesn’t operate, motor unit is overheated. Wait 30 minutes and retry. If

 

motor unit still will not operate replace logic board.

9 FLASHES

Symptom: Door reverses while closing.

Cable tension monitor

• Check for possible door obstructions and remove.

• Check that the cable tension monitor is properly connected to the operator.

reversal.

 

•Replace the cable tension monitor.

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