Safety Reversing Sensor
Diagnostic Charf
Safety reversing sensors
wire open (broken
or disconnected).
OR
Safety reversing sensors
wire shorted or black/
white wire reversed.
Door control or wire
shorted,
Safety reversing sensors
slightly misaligned (dim
or flashing LED).
Possible RPM sensor
failure. Unplug to reset.
Your garage door opener is programmed with self-diagnostic
capabilities The "Learn" buttorJdiagnostic LED will flash a
number of times then pause signifying it has found a potential
issue Consult Diagnostic Chart below.
0Symptom: One or both of the Indicator lights on the safety reversing sensors
do not glow steady.
* inspectsensor wires for a short (staple in wire), correct wiring polarity (black/white
wires reversed), broken or disconnected wires, replace/attach as needed
-Disconnect alIwires from back of motor unit
oRemove sensors from brackets and shorten sensor wires to 1-2ft (30-60 cm) from
back each of sensor_
oReattach sending eye to motor unit using shortened wires, If sending eye indicator
light glows steadily, attach the receiving eye
.Align sensors, if the indicatorlights glow replace the wires for the sensors, Ifthe
sensor indicator lights do not light, replace the safety reversing sensors,
0Symptom: LED is not lit on door control
•Inspect control console/wires for a short (staple in wire), replace as needed,
- 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
0Symptom: Sending indicator fight glows steadily, receiving indicator fight is
dim or flashing.
• Realign receiving eye sensor, clean lens and secure brackets,
=Verify door track is firmly secured to wall and does not move
0Symptom: RPM Sensor = Short travel 6-8" (15-20 cm).
.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
RPM sensor
• If motor unit doesn't operate, motor unit is overheated_ Wait 30 minutes and retry,
If motor unit still wilt not operate replace logic board,
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