Chamberlain WLED User manual

LiftMaster

300 Windsor Drive

Oak Brook, IL 60523

LED Wi-Fi®Garage Door Opener

Belt Drive Model WLED

• Please read this manual and the safety materials

carefully!

• The door WILL NOT CLOSE unless the Protector

System®is connected and properly aligned.

• Periodic checks of the garage door opener are

required to ensure safe operation.

• This garage door opener is ONLY compatible with

MyQ®and Security+ 2.0®accessories.

• DO NOT install on a one-piece door if using devices

or features providing unattended close. Unattended

devices and features are to be used ONLY with

sectional doors.

• Attach warning labels to the location indicated on

label.

FOR RESIDENTIAL USE ONLY

updates and offers from LiftMaster

Take a photo of the camera icon

including the points ( ).

Send it in by texting

the photo to 71403 (US)

or visit www.liftmaster.photo (Global)

Contents

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Install the Door Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Install the Protector System®. . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Battery Backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42



0REPARATION

-Y13ERIAL .UMBER

7RITE DOWN THE FOLLOWING INFORMATION FOR FUTURE REFERENCE

MyQ®Serial Number:

Product S/N

Product S/N:

Date of Purchase:

/ /

MyQ®Serial Number

3AFETY 3YMBOL AND 3IGNAL 7ORD 2EVIEW

4HIS GARAGE DOOR OPENER HAS BEEN DESIGNED AND TESTED TO OFFER SAFE SERVICE PROVIDED IT IS

INSTALLED OPERATED MAINTAINED AND TESTED IN STRICT ACCORDANCE WITH THE INSTRUCTIONS AND

WARNINGS CONTAINED IN THIS MANUAL

7HEN YOU SEE THESE 3AFETY 3YMBOLS AND 3IGNAL 7ORDS ON THE FOLLOWING PAGES THEY WILL

ALERT YOU TO THE POSSIBILITY OF SERIOUS INJURY OR DEATH IF YOU DO NOT COMPLY WITH THE

WARNINGS THAT ACCOMPANY THEM 4HE HAZARD MAY COME FROM SOMETHING MECHANICAL OR

FROM ELECTRIC SHOCK 2EAD THE WARNINGS CAREFULLY

-ECHANICAL

%LECTRICAL

7HEN YOU SEE THIS 3IGNAL 7ORD ON THE FOLLOWING PAGES IT WILL ALERT YOU TO THE POSSIBILITY

OF DAMAGE TO YOUR GARAGE DOOR ANDOR THE GARAGE DOOR OPENER IF YOU DO NOT COMPLY WITH

THE CAUTIONARY STATEMENTS THAT ACCOMPANY IT 2EAD THEM CAREFULLY

7!2.).' 4HIS PRODUCT CAN EXPOSE YOU TO CHEMICALS INCLUDING LEAD WHICH

ARE KNOWN TO THE 3TATE OF #ALIFORNIA TO CAUSE CANCER OR BIRTH DEFECTS OR OTHER

REPRODUCTIVE HARM &OR MORE INFORMATION GO TO WWW07ARNINGSCAGOV

5NATTENDED /PERATION

4HE 4IMERTO#LOSE 44# FEATURE THE -Y13MARTPHONE #ONTROL APP AND -Y1'ARAGE

$OOR AND 'ATE -ONITOR ARE EXAMPLES OF UNATTENDED CLOSE AND ARE TO BE USED /.,9WITH

SECTIONAL DOORS !NY DEVICE OR FEATURE THAT ALLOWS THE DOOR TO CLOSE WITHOUT BEING IN THE

LINE OF SIGHT OF THE DOOR IS CONSIDERED UNATTENDED CLOSE 4HE 4IMERTO#LOSE 44#

FEATURE THE -Y13MARTPHONE #ONTROL AND ANY OTHER -Y1DEVICES ARE TO BE USED

/.,9 WITH SECTIONAL DOORS



0REPARATION

"EFORE 9OU #ONNECT WITH 9OUR 3MARTPHONE

-ONITOR AND CONTROL YOUR GARAGE DOOR FROM ANYWHERE USING THE -Y1APP

9OU WILL NEED

z7I&I ENABLED SMARTPHONE TABLET OR LAPTOP

z"ROADBAND )NTERNET #ONNECTION

z7I&I SIGNAL IN THE GARAGE  'HZ BGN REQUIRED

z0ASSWORD FOR YOUR HOME NETWORK ROUTERgS MAIN ACCOUNT NOT GUEST NETWORK

4EST THE 7I&I 3IGNAL 3TRENGTH

-AKE SURE YOUR MOBILE DEVICE IS CONNECTED TO YOUR 7I&I NETWORK (OLD YOUR MOBILE

DEVICE IN THE PLACE WHERE YOUR GARAGE DOOR OPENER WILL BE INSTALLED AND CHECKTHE7I&I

SIGNAL STRENGTH

Check Signal Strength. If you see:

Wi-Fi signal is strong.

The garage door opener will

connect to your Wi-Fi

network.

Wi-Fi signal is weak.

The garage door opener may connect

to your Wi-Fi network. If not, try one

of the options below to improve the

Wi-Fi signal:

No Wi-Fi signal.

The garage door opener will not be

able to connect to your Wi-Fi

network. Try one of the options

below to improve the Wi-Fi signal:

• Move your router closer to the garage

door opener to minimize interference from

walls and other objects

• Buy a Wi-Fi range extender

&OR COMPATIBLE ROUTER SPECIFICATIONS AND HELP VISIT 7I&I(ELP,IFT-ASTERCOM

3EE PAGE  TO CONNECT THE GARAGE DOOR OPENER TO A MOBILE DEVICE

#HECK THE $OOR

4O PREVENT POSSIBLE 3%2)/53).*529OR $%!4(

z!,7!93 CALL A TRAINED DOOR SYSTEMS TECHNICIAN IF GARAGE DOOR BINDS STICKS OR

IS OUT OF BALANCE !N UNBALANCED GARAGE DOOR MAY ./4 REVERSE WHEN

REQUIRED

z.%6%2 TRY TO LOOSEN MOVE OR ADJUST GARAGE DOOR DOOR SPRINGS CABLES

PULLEYS BRACKETS OR THEIR HARDWARE !,,OF WHICH ARE UNDER %842%-% TENSION

z$ISABLE !,,LOCKS AND REMOVE !,,ROPES CONNECTED TO GARAGE DOOR "%&/2%

INSTALLATION AND OPERATING GARAGE DOOR OPENER TO AVOID ENTANGLEMENT

z$/ ./4 INSTALL ON A ONEPIECE DOOR IF USING DEVICES OR FEATURES PROVIDING

UNATTENDED CLOSE 5NATTENDED DEVICES AND FEATURES ARE TO BE USED /.,9 WITH

SECTIONAL DOORS

4O PREVENT DAMAGE TO GARAGE DOOR AND OPENER

z!,7!93 DISABLE LOCKS "%&/2% INSTALLING AND OPERATING THE OPENER

z/.,9 OPERATE GARAGE DOOR OPENER AT 6 (Z TO AVOID MALFUNCTION AND

DAMAGE

"EFORE YOU BEGIN

 $ISABLE LOCKS AND REMOVE ANY ROPES CONNECTED TO THE GARAGE

DOOR

 ,IFT THE DOOR HALFWAY UP 2ELEASE THE DOOR )F BALANCED IT SHOULD

STAY IN PLACE SUPPORTED ENTIRELY BY ITS SPRINGS

 2AISE AND LOWER THE DOOR TO CHECK FOR BINDING OR STICKING )F

YOUR DOOR BINDS STICKS OR IS OUT OF BALANCE CALL A TRAINED DOOR

SYSTEMS TECHNICIAN

 #HECK THE SEAL ON THE BOTTOM OF THE DOOR !NY GAP BETWEEN THE

FLOOR AND THE BOTTOM OF THE DOOR MUST NOT EXCEED  INCH 

MM /THERWISE THE SAFETY REVERSAL SYSTEM MAY NOT WORK

PROPERLY

 4HE OPENER SHOULD BE INSTALLED ABOVE THE CENTER OF THE DOOR )F

THERE IS A TORSION SPRING OR CENTER BEARING PLATE IN THE WAY OF THE

HEADER BRACKET IT MAY BE INSTALLED WITHIN FEET  M TO THE

LEFT OR RIGHT OF THE DOOR CENTER 3EE PAGE 

Torsion

Spring

Extension

Spring



0REPARATION

4OOLS .EEDED

3/16

5/32

5/16

7/16

1/2

5/8

9/16

1/4

7/16



0REPARATION

#ARTON )NVENTORY

!CCESSORIES WILL VARY DEPENDING ON THE GARAGE DOOR OPENER MODEL PURCHASED $EPENDING

ON YOUR SPECIFIC MODEL OTHER ACCESSORIES MAY BE INCLUDED WITH YOUR GARAGE DOOR

OPENER 4HE INSTRUCTIONS FOR THESE ACCESSORIES WILL BE ATTACHED TO THE ACCESSORY AND ARE

NOT INCLUDED IN THIS MANUAL 4HE IMAGES THROUGHOUT THIS MANUAL ARE FOR REFERENCE AND

YOUR PRODUCT MAY LOOK DIFFERENT

! (EADER BRACKET

" 0ULLEY AND BRACKET

# $OOR BRACKET

$ #URVED DOOR ARM

% 3TRAIGHT DOOR ARM

& 4ROLLEY

' %MERGENCY RELEASE ROPE AND HANDLE

( 2AIL

) 'ARAGE DOOR OPENER

* 3PROCKET COVER WITH HEX SCREWS

+ "ELT

, $OOR CONTROL 3MART #ONTROL 0ANEL,-7

- 7HITE AND REDWHITE WIRE

. 4HE 0ROTECTOR 3YSTEM

3AFETY REVERSING SENSORS WITH WHITE AND WHITEBLACK WIRE ATTACHED

3ENDING SENOR  RECEIVING SENSOR  AND SAFETY SENSOR BRACKETS 

/ 3AFETY LABELS AND LITERATURE

0 2AIL GREASE

1 "UTTON 2EMOTE #ONTROL -!8

)NSTALLATION

(EX "OLT Ñ X Ñ  ,OCK 7ASHER Ñ 

,AG 3CREW Ñ X Ñ  3ELF4HREADING 3CREW Ñ X Ñ 

#LEVIS 0IN Ñ X Ñ  2ING &ASTENER 

#LEVIS 0IN Ñ X Ñ  #ARRIAGE "OLT Ñ X Ñ 

#LEVIS 0IN Ñ X Ñ  7ING .UT Ñ 

.UT Ñ 

$OOR #ONTROL (ARDWARE

3CREW !" X Ñ  $RYWALL !NCHORS 

3CREW  X Ñ 

Not Provided

Not

Provided



!SSEMBLY

 !TTACH THE 2AIL TO THE 'ARAGE $OOR /PENER

4O AVOID POSSIBLE 3%2)/53 ).*529 TO FINGER FROM MOVING GARAGE DOOR OPENER

z!,7!93 KEEP HAND CLEAR OF SPROCKET WHILE OPERATING OPENER

z3ECURELY ATTACH SPROCKET COVER "%&/2% OPERATING

4O AVOID 3%2)/53 DAMAGE TO GARAGE DOOR OPENER USE /.,9 THOSE BOLTSFASTENERS

MOUNTED IN THE TOP OF THE OPENER

./4% /.,9 USE THE BOLTS REMOVED FROM THE GARAGE DOOR OPENER 0LACE THE GARAGE DOOR

OPENER ON THE PACKING MATERIAL TO PREVENT SCRATCHING

 2EMOVE THE TWO BOLTS FROM THE TOP OF THE GARAGE DOOR OPENER

 !LIGN THE RAIL AND THE STYROFOAM OVER THE SPROCKET #UT THE TAPE FROM THE RAIL BELT

AND STYROFOAM

 &ASTEN THE RAIL WITH THE PREVIOUSLY REMOVED BOLTS

 0OSITION THE BELT AROUND THE GARAGE DOOR OPENER SPROCKET

 !TTACH THE SPROCKET COVER OVER THE GARAGE DOOR OPENER SPROCKET AND ATTACH WITH

HEX SCREWS

Model 8550W

Washered Bolt 5/16"-18x1/2"

(Mounted in the garage

door opener)

Hex Screw

#8x3/8"

(Packed with the

sprocket cover)

Washered Bolt

5/16"-18x1/2" Hex Screw

#8x3/8"

HARDWARE



!SSEMBLY

 4IGHTEN THE "ELT

 "Y HAND THREAD THE SPRING TROLLEY NUT ON THE THREADED SHAFT UNTIL IT IS FINGER TIGHT

AGAINST THE TROLLEY $O NOT USE ANY TOOLS

 )NSERT A FLATHEAD SCREWDRIVER TIP INTO ONE OF THE NUT RING SLOTS AND BRACE IT FIRMLY

AGAINST THE TROLLEY

 4IGHTEN THE SPRING TROLLEY NUT WITH AN ADJUSTABLE WRENCH OR A Ñ OPEN END

WRENCH ABOUT A QUARTER TURN UNTIL THE SPRING RELEASES AND SNAPS THE NUT RING

AGAINST THE TROLLEY 4HIS SETS THE SPRING TO OPTIMUM BELT TENSION

Spring Trolley Nut

(To motor unit)

Nut ring

slot

Nut Ring Nut Ring

AFTER RELEASE

1-1/4"

(3.18 cm)

BEFORE

(2.5 cm)



)NSTALLATION

+/2146#06 +056#..#6+10 +05647%6+105

6Q TGFWEG VJG TKUM QH 5'8'4' +0,74; QT &'#6*

 2%!$ !.$ &/,,/7 !,, ).34!,,!4)/. 7!2.).'3 !.$ ).3425#4)/.3

 )NSTALL GARAGE DOOR OPENER /.,9 ON PROPERLY BALANCED AND LUBRICATED GARAGE

DOOR !N IMPROPERLY BALANCED DOOR MAY ./4 REVERSE WHEN REQUIRED AND COULD

RESULT IN 3%6%2% ).*529 OR $%!4(

 !,, REPAIRS TO CABLES SPRING ASSEMBLIES AND OTHER HARDWARE -534 BE MADE BY

A TRAINED DOOR SYSTEMS TECHNICIAN "%&/2% INSTALLING OPENER

 $ISABLE !,, LOCKS AND REMOVE !,, ROPES CONNECTED TO GARAGE DOOR "%&/2%

INSTALLING OPENER TO AVOID ENTANGLEMENT

 7HERE POSSIBLE INSTALL THE DOOR OPENER  FEET  M OR MORE ABOVE THE

FLOOR

 -OUNT THE EMERGENCY RELEASE WITHIN REACH BUT AT LEAST  FEET  M ABOVE

THE FLOOR AND AVOIDING CONTACT WITH VEHICLES TO AVOID ACCIDENTAL RELEASE

 .%6%2 CONNECT GARAGE DOOR OPENER TO POWER SOURCE UNTIL INSTRUCTED TO DO SO

 .%6%2 WEAR WATCHES RINGS OR LOOSE CLOTHING WHILE INSTALLING OR SERVICING

OPENER 4HEY COULD BE CAUGHT IN GARAGE DOOR OR OPENER MECHANISMS

 )NSTALL WALLMOUNTED GARAGE DOOR CONTROL

zWITHIN SIGHT OF THE GARAGE DOOR

zOUT OF REACH OF SMALL CHILDREN AT A MINIMUM HEIGHT OF FEET M

ABOVE FLOORS LANDINGS STEPS OR ANY OTHER ADJACENT WALKING SURFACE

zAWAY FROM !,, MOVING PARTS OF THE DOOR

 0LACE ENTRAPMENT WARNING LABEL ON WALL NEXT TO GARAGE DOOR CONTROL

 0LACE EMERGENCY RELEASESAFETY REVERSE TEST LABEL IN PLAIN VIEW ON INSIDE OF

GARAGE DOOR

 5PON COMPLETION OF INSTALLATION TEST SAFETY REVERSAL SYSTEM $OOR -534

REVERSE ON CONTACT WITH A Ñ CM HIGH OBJECT OR A X LAID FLAT ON THE

FLOOR

 4O AVOID 3%2)/53 0%23/.!, ).*529 OR $%!4( FROM ELECTROCUTION

DISCONNECT !,, ELECTRIC AND BATTERY POWER "%&/2% PERFORMING !.9 SERVICE OR

MAINTENANCE

 $/ ./4 INSTALL ON A ONEPIECE DOOR IF USING DEVICES OR FEATURES PROVIDING

UNATTENDED CLOSE 5NATTENDED DEVICES AND FEATURES ARE TO BE USED /.,9 WITH

SECTIONAL DOORS



)NSTALLATION

 $ETERMINE THE (EADER "RACKET ,OCATION

4O PREVENT POSSIBLE 3%2)/53 ).*529 OR $%!4(

z(EADER BRACKET -534 BE 2)')$,9 FASTENED TO STRUCTURAL SUPPORT ON HEADER

WALL OR CEILING OTHERWISE GARAGE DOOR MIGHT ./4 REVERSE WHEN REQUIRED $/

./4 INSTALL HEADER BRACKET OVER DRYWALL

z#ONCRETE ANCHORS -534 BE USED IF MOUNTING HEADER BRACKET OR X INTO

MASONRY

z.%6%2 TRY TO LOOSEN MOVE OR ADJUST GARAGE DOOR SPRINGS CABLES PULLEYS

BRACKETS OR THEIR HARDWARE !,, OF WHICH ARE UNDER %842%-% TENSION

z!,7!93 CALL A TRAINED DOOR SYSTEMS TECHNICIAN IF GARAGE DOOR BINDS STICKS OR

IS OUT OF BALANCE !N UNBALANCED GARAGE DOOR MIGHT ./4 REVERSE WHEN

REQUIRED

z$/ ./4 ENABLE THE 4IMERTO#LOSE FUNCTIONALITY IF OPERATING EITHER ONEPIECE OR

SWINGING GARAGE DOORS 4O BE ENABLED /.,9 WHEN OPERATING A SECTIONAL DOOR

#LOSE THE DOOR AND MARK THE INSIDE VERTICAL CENTERLINE OF THE GARAGE DOOR

%XTEND THE LINE ONTO THE HEADER WALL ABOVE THE DOOR 9OU CAN FASTEN THE HEADER BRACKET

WITHIN  FEET  M OF THE LEFT OR RIGHT OF THE DOOR CENTER ONLY IF A TORSION SPRING OR

CENTER BEARING PLATE IS IN THE WAY OR YOU CAN ATTACH IT TO THE CEILING WHEN CLEARANCE IS

MINIMAL )T MAY BE MOUNTED ON THE WALL UPSIDE DOWN IF NECESSARY TO GAIN APPROXIMATELY

Ñ  CM )F YOU NEED TO INSTALL THE HEADER BRACKET ON A X ON WALL OR CEILING USE LAG

SCREWS NOT PROVIDED TO SECURELY FASTEN THE X TO STRUCTURAL SUPPORTS

/PEN YOUR DOOR TO THE HIGHEST POINT OF TRAVEL AS SHOWN $RAW AN INTERSECTING HORIZONTAL

LINE ON THE HEADER WALL Ñ  CM ABOVE THE HIGH POINT 4HIS HEIGHT WILL PROVIDE TRAVEL

CLEARANCE FOR THE TOP EDGE OF THE DOOR

./4% )F THE TOTAL NUMBER OF INCHES EXCEEDS THE HEIGHT AVAILABLE IN YOUR GARAGE USE THE

MAXIMUM HEIGHT POSSIBLE OR REFER TO PAGE  FOR CEILING INSTALLATION

Header Wall

Unﬁnished

Ceiling

Vertical Centerline

of Garage Door

2x4

Structural

Supports

Level

(Optional)

OPTIONAL

CEILING

MOUNT FOR

HEADER

BRACKET

Sectional door with curved track

Header Wall

Track

2" (5 cm)

Highest Point

of Travel

Door

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