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Troubleshooting - LiftMaster Wi-Fi LM3800W Originalinstallations- Und Betriebsanweisungen

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DIAGNOSTIC CODE
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Troubleshooting

The garage door opener doesn't operate from either the door control or the remote control:
Does the garage door opener have electric power? Plug a lamp into the outlet. If it doesn't light, check the fuse box or the circuit breaker. (Some
outlets are controlled by a wall switch.)
Have you disabled all door locks? Review installation instruction warnings on page 5.
Are the wiring connections correct?
Is there a build-up of ice or snow under the door? The door may be frozen to the ground. Remove any restriction.
The garage door spring may be broken. Have it replaced (see point 3 Planing ).
The door opener operates from the single button control station, but not from a remote control:
Reprogram the remote control and replace the battery if necessary. Repeat with all remote controls.
The door opens and closes by itself:
Be sure that all remote control push buttons are off.
Remove the bell wire from the single button control station terminals and operate from the remote only. If this solves the problem, the single
button control station is faulty, or there is an intermittent short in the wire. Replace the control station.
Erase the memory and reprogram all remote controls (refer to the instructions provided with the remote control or visit LiftMaster.eu).
My remote control will not activate the garage door:
Verify the lock feature is not activated on the door control.
Reprogram the remote control.
If the remote control will still not activate the door check the diagnostic codes to ensure the garage door opener is working properly.
The remote control has short range:
Change the location of the remote control in your car.
Some installations may have shorter range due to a metal door, foil backed insulation, or metal garage siding.
The door doesn't open completely:
Check power door lock.
Is something obstructing the door? Is it out of balance, or are the springs broken? Remove the obstruction or repair the door.
The door opens but won't close:
Check that cable tension monitor is correctly installed. If a second cable tension monitor has been removed, follow the instructions to relearn a
single cable tension monitor (see Point 14).
The infrared photocells must be connected and aligned correctly before the door opener will move in the down direction. If you are able to close
the door using constant pressure, verify the infrared photocells are properly installed, aligned and free of any obstructions.
If the garage door opener lights blink, check the infrared photocells.
If the garage door opener lights don't blink and it is a new installation (see Point 14). For an existing installation, see below.
Repeat the safety reverse test after the adjustment is complete.
SYMPTOM
Door is moving stops and or
reverses.
Opener runs approximately
15-20 cm, stops and reverses.
The garage door opener will not
close and the light flashes.
The door will not close when
using Timer-to-Close or MyQ
Smartphone Control.
SOLUTION
Manually open and close the door. Check for binding or obstructions, such
as a broken spring or door lock, correct as needed. If the door is binding or
sticking contact a trained door systems technician. If door is not binding or
sticking attempt to reprogram travel.
Communication error to travel module. Check travel module connections,
replace module if necessary.
Infrared photocells are 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 sensor's path while closing.
MyQ Remote LED Light must be installed to use TTC or MyQ to control
the door. Plug in the MyQ Remote LED Light and make sure it is pro-
grammed to the garage door opener.
17 / en

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