Bell Wire
Diagnostics
Located On
Motor Unit
LED or
Diagnostic
| LED“Learn” |
Safety Reversing Sensor | Button |
|
Installed
Safety Reversing
Sensor
Your garage door opener is programmed with
Diagnostic Chart
1 FLASH | Symptom: One or both of the Indicator lights on the safety sensors do not glow | |
Safety reversing sensors | steady. | |
• Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/ | ||
wire open (broken or | ||
white 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 | ||
| ||
2 FLASHES | from back each of sensor. | |
Safety reversing sensors | • Reattach sending eye to motor unit using shortened wires. If sending eye | |
indicator light glows steadily, attach the receiving eye. | ||
wire shorted or black/white | • Align sensors, if the indicator lights glow replace the wires for the sensors. If the | |
wire reversed. | ||
sensor indicator lights do not light, replace the safety sensors. | ||
|
3 FLASHES | Symptom: LED is not lit on door control. | |
Door control or wire | • 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, | ||
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 dim | |
Safety reversing sensors | or flashing. | |
• Realign receiving eye sensor, clean lens and secure brackets. | ||
slightly misaligned (dim | ||
• Verify door track is firmly secured to wall and does not move. | ||
or flashing LED). |
5 FLASHES | Symptom: Motor has overheated; the motor unit does not operate or trolley is |
| stuck on stop bolt = Motor unit hums briefly; RPM Sensor = Short travel |
Motor overheated or |
|
possible RPM sensor | • Unplug unit to reset. Try to operate motor unit, check diagnostic code. |
failure. Unplug to reset. | • If it is still flashing 5 times and motor unit moves |
| |
| 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. |
6 FLASHES | Symptom: Motor unit doesn’t operate. |
Motor Circuit Failure. | • Replace logic board because motor rarely fails. |
| |
Replace Receiver |
|
| |
Logic Board. |
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| 34 |