Bell Wire

Diagnostics

Located On

Motor Unit

“Learn” Button LED or Diagnostic

LED

Safety Reversing Sensor “Learn” Button

Installed

Safety 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 (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/white wire reversed.

 

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

 

 

 

 

3 FLASHES

Symptom: LED is not lit on control console.

Control console or

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

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

wire shorted.

replace control console.

 

 

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

 

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

 

activates, replace control console 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

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

(dim or flashing LED).

 

5

FLASHES

Symptom: RPM Sensor = Short travel 6-8" (15-20 cm).

Possible RPM sensor

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

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

failure. Unplug to reset.

RPM sensor.

 

 

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