Diagnostics

Located On

Motor Unit

LED or

Diagnostic

LED “Learn”

Button

Safety Reversing Sensor

Installed

Safety Reversing

Sensor

Your garage door opener is programmed with self-diagnostic capabilities. The “Learn” button/diagnostic LED will 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

 

 

 

do not glow steady.

Safety reversing sensors

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

wire open (broken or

 

(black/white wires reversed), broken or disconnected wires, replace/attach

disconnected).

 

 

as needed.

 

OR

 

 

• Disconnect all wires from back of motor unit.

 

2 FLASHES

•

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

 

 

 

from back each of sensor.

 

 

 

Safety reversing sensors

•

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

wire shorted or black/white

 

indicator light glows steadily, attach the receiving eye.

wire reversed.

 

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

 

 

 

3 FLASHES

 

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

 

 

 

Symptom: LED is not lit on door control.

 

 

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

Door control or wire shorted.

 

 

 

 

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

 

 

 

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

 

 

dim or flashing.

Safety reversing sensors

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

slightly misaligned

(dim or flashing LED).

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

 

5 FLASHES

Symptom: Motor has over heated; the motor unit does not operate or trolley is

 

 

 

stuck on stop bolt = Motor unit hums briefly; RPM Sensor = Short travel 6-8"

Motor overheated or possible

(15-20 cm).

RPM sensor failure. Unplug

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

to reset.

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

 

 

 

 

 

RPM sensor.

 

 

•

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

 

6 FLASHES

 

retry. If motor unit still will not operate replace logic board.

 

Symptom: Motor unit doesn’t operate.

 

 

• Replace logic board because motor rarely fails.

Motor Circuit Failure.

 

 

Replace Receiver Logic

 

 

Board.

 

 

 

 

 

30