Disposal; Diagnostic Chart - LiftMaster LM3800W Mode D'emploi

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Disposal

The packaging must be disposed of in the local recyclable containers. According to the European Directive 2002/96/EC on waste electrical
equipment, this device must be properly disposed of, after usage in order to ensure a recycling of the materials used.
Old accumulators and batteries may not be disposed of in the household waste, since they contain pollutants and must be properly
disposed of in municipal collection points or in the containers of the dealer provided. Country-specific regulations must be observed. The
components must be properly disposed of at a public company specializing in waste disposal. The relevant local and country-specific
regulations must be adhered to. All decommissioned drive components may not be disposed of in the household waste.
The competent authority (city, town) or its disposal company will inform you about the possibilities of this disposal.
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Diagnostic Chart

Your garage door opener is programmed with self-diagnostic capabilities.
The UP and DOWN arrows on the garage door opener flash the diagnostic codes.
DIAGNOSTIC CODE
Up Arrow Down Arrow
Flash(es) Flash(es)
1 1
1 2
1 3
1 4
1 5
1 5
1 5
1 6
2 1-5
3 1
3 3
3 5
SYMPTOM
The garage door opener will not
close and the light flashes.
The garage door opener will not
close and the light flashes.
The door control will not function.
The garage door opener will not
close and the light flashes.
Door moves 15-20 cm stops or
reverses.
No movement, only a single click.
Opener hums for 1-2 seconds no
movement
Door coast after it has come to a
complete stop.
No movement or sound.
The garage door opener moves
slightly, then stops.
The battery status LED is
constantly flashing green.
The garage door opener will not
close or door reverses during
travel.
SOLUTION
If Infrared photocells are installed, then not connected or wires may be cut.
Inspect sensor wires for a disconnected or cut wire.
There is a short or reversed wire for the infrared photocells. Inspect
photocells wire at all staple points and connection points and replace wire
or correct as needed.
The wires for the door control are shorted or the door control is faulty.
Inspect door control wires at all staple points and connection points and
replace wire or correct as needed.
If Infrared photocells are installed, then misaligned or were momentarily
obstructed. Realign both sensors to ensure both LEDs are steady and
not flickering. Make sure nothing is hanging or mounted on the door that
would interrupt the sensors path while closing.
Manually open and close the door. Check for binding or obstructions,
such as a broken spring or door lock, correct as needed. Check wiring
connections at travel module and at the logic board. Replace travel
module if necessary.
Manually open and close the door. Check for binding or obstructions, such
as a broken spring or door lock, correct as needed. Replace logic board
if necessary.
Manually open and close the door. Check for binding or obstructions,
such as a broken spring or door lock, correct as needed. Replace motor
if necessary.
Program travel to coasting position or have door balanced by a trained
technician.
Replace logic board.
Activate the garage door opener again. If problem persists, replace logic
board.
Battery backup charging circuit error, replace logic board.
If two cable tension monitors were previously installed and one has been
removed, unplug and plug in the opener three times to relearn the monitor
to the opener.
• Check for possible door obstructions and remove.
• Check that the cable tension monitor is properly connected to the opener.
• Replace the cable tension monitor.
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