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CONTENTS

Preparation . . . . . . . . . . . . . . . .1-2

Assembly  . . . . . . . . . . . . . . . . . . 3

Installation  . . . . . . . . . . . . . . . 4-11

Install the Door Control . . . . . . 12-13

Install the Protector System

®

. . 14-17

Power. . . . . . . . . . . . . . . . . . 18-19

Adjustments  . . . . . . . . . . . . . 20-22

Operation  . . . . . . . . . . . . . . . . .  23

Features . . . . . . . . . . . . . . . . . .  24

Door Control  . . . . . . . . . . . . . 25-26

Remote Control  . . . . . . . . . . . . .  27

To Erase the Memory  . . . . . . . . .  27

To Open the Door Manually . . . . .  28

Maintenance . . . . . . . . . . . . . . .  29

Troubleshooting. . . . . . . . . . . 30-31

Accessories. . . . . . . . . . . . . . . .  32

Warranty. . . . . . . . . . . . . . . . . .  33

Repair Parts  . . . . . . . . . . . . . 34-35

1/2 hp
Garage Door Opener

The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

■ 

 Please read this manual and the enclosed safety materials carefully!

■ 

 Fasten the manual near the garage door after installation.

   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.

  The model number label is located on the front panel of your garage door opener.

   This garage door opener is ONLY compatible with MyQ

®

 and Security

 2.0™ 

accessories. 

   ONLY enable the Timer-to-Close or MyQ

®

 remote operation feature when the 

garage door opener is installed on a sectional door.

  NOTE:

 If you are installing the garage door opener on a one-piece door, visit 

www.liftmaster.com for installation instructions.

www.liftmaster.com

Serial Number:

Date of Purchase:

 

Models
• M885
• M8856

FOR RESIDENTIAL USE ONLY 

Write down the following information for 
future reference:

..

Summary of Contents for AccessMaster M885

Page 1: ...oor after installation 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 The model number label is located on the front panel of your garage door opener This garage door opener is ONLY compatible with MyQ and Security 2 0 accessories ONLY enable the Timer to Close or MyQ remote opera...

Page 2: ...ge door door springs cables pulleys brackets or their hardware ALL ofwhich are under EXTREME tension l Disable ALL locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement To preventdamage to garage door and opener l ALWAYS disable locks BEFORE installing and operating the opener l ONLY operate garage door opener at 120V 60 Hz t...

Page 3: ... Door control M White and red white wire N The Protector System Safety reversing sensors with white and white black wire attached Sending Sensor 1 Receiving Sensor 1 and Safety Sensor Brackets 2 O Safety labels and literature P Rail grease Security 2 0 Accessories 041A7185 2 Premium Motion Detecting Control Panel 891AC Remote Control Hardware Installation DoorControlHardware Hex bolt5 16 18 x 7 8 ...

Page 4: ...ail chain and styrofoam 3 Fasten the rail with the previously removed bolts 4 Position the chain around the garage door opener sprocket 5 Install the sprocketcover Insertthe back tab in the slot Squeeze the cover slightly and insert the fronttab in the sloton the mounting plate Washered Bolts 5 16 18x1 2 Mounted in the garage door opener 2 Tighten the Chain 1 Loosen the inner nutand lock washer on...

Page 5: ...structed to do so 8 NEVER wear watches rings or loose clothing while installing or servicing opener They could be caughtin garage door or opener mechanisms 9 Install wall mounted garage door control l within sightofthe garage door l outofreach ofchildren atminimum heightof5 feet 1 5 m l away from ALL moving parts ofthe door 10 Place entrapmentwarning label on wall nextto garage door control 11 Pla...

Page 6: ... mark the inside vertical centerline ofthe garage door Extend the line onto the header wall above the door You can fasten the header bracketwithin 4 feet 1 22 m ofthe leftor rightofthe door center only ifa torsion spring or center bearing plate is in the way or you can attach itto the ceiling when clearance is minimal Itmay be mounted on the wall upside down ifnecessary to gain approximately 1 2 1...

Page 7: ...ten the bracketsecurely to a structural supportwith lag screws Wall Mount Optional Mounting Holes Vertical Centerline of Garage Door Header Wall Header Bracket 2x4 Structural Support Door Spring Garage Door Highest Point of Garage Door Travel Horizontal Line Lag Screw 5 16 9 x 1 5 8 OPTION B CEILING INSTALLATION 1 Extend the vertical centerline onto the ceiling as shown 2 Center the bracketon the ...

Page 8: ...mage to garage door restgarage door opener rail on 2x4 placed on top section of door 1 Remove the packing material and liftthe garage door opener onto a ladder 2 Fully open the door and place a 2x4 laid flat under the rail A 2x4 is ideal for setting the distance between the rail and the door Ifthe ladder is nottall enough you will need help atthis point Ifthe door hits the trolley when itis raised...

Page 9: ...the motor unitto the structural support 2 Cutboth pieces ofthe hanging bracketto required lengths 3 Drill 3 16 pilotholes in the structural supports 4 Attach one end ofeach bracketto a supportwith 5 16 18x1 7 8 lag screws notprovided 5 Fasten the opener to the hanging brackets with 5 16 18x7 8 hex bolts lock washers and nuts 6 Check to make sure the rail is centered over the door or in line with t...

Page 10: ...ach the Emergency Release Rope and Handle To preventpossible SERIOUS INJURY or DEATH from a falling garage door l Ifpossible use emergency release handle to disengage trolley ONLY when garage door is CLOSED Weak or broken springs or unbalanced door could resultin an open door falling rapidly and or unexpectedly l NEVER use emergency release handle unless garage doorway is clear ofpersons and obstr...

Page 11: ...cket2 4 5 10 cm below the top edge ofthe door OR directly below any structural supportacross the top ofthe door 3 Mark drill holes and install as follows depending on your door s construction Metalorlight weight doors using a verticalangle iron brace between the doorpanelsupport and the doorbracket l Drill 3 16 fastening holes Secure the door bracketusing the two selfthreading screws Figure 1 l Al...

Page 12: ...oles as far apartas possible and attach using the bolts nuts and lock washers NOTE Ifthe holes do notline up reverse the straightdoor arm Selecttwo aligned holes as far apartas possible and attach using the bolts nuts and lock washers 5 Pull the emergency release handle toward the garage door opener until the trolley release arm is horizontal The trolley will re engage automatically when the garag...

Page 13: ...ghtof5 feet 1 5 m where small children cannotreach and away from the moving parts ofthe door For gang box installations itis notnecessary to drill holes or install the drywall anchors Use the existing holes in the gang box NOTE Your productmay look differentthan the illustrations HARDWARE Screw 6ABx1 2 Drywall Anchors 2 Screw 6 32x1 2 1 Strip 7 16 inch 11 mm ofinsulation from one end ofthe wire an...

Page 14: ...ox or pre wired installations Do notpierce the wire with the staple as this may cause a shortor an open circuit 2 Strip 7 16 inch 11 mm ofinsulation from the end ofthe wire near the garage door opener 3 Connectthe wire to the red and white terminals on the garage door opener To insertor release wires from the terminal push in the tab with screwdriver tip 7 16 11 mm 2 3 1 Staple RED WHITE WHITE GRE...

Page 15: ...n and the garage door opener lights will flash 10 times NOTE For energy efficiency the garage door opener will enter sleep mode when the door is fully closed The sleep mode shuts the garage door opener down until activated The sleep mode is sequenced with the garage door opener lightbulb as the lightbulb turns offthe sensor LEDs will turn off and whenever the garage door opener lights turn on the ...

Page 16: ...or bracket No more than 6 inches 15 cm Carriage Bolt 1 4 20x1 2 Wing Nut 1 4 20 1 2 3 OPTION B WALL INSTALLATION Ifadditional clearance is needed an extension bracket notprovided or wood blocks can be used Make sure each brackethas the same amountofclearance so they will align correctly 1 Position the sensor bracketagainstthe wall with the curved arms facing the door Make sure there is enough clea...

Page 17: ...ovided 1 2 Carriage Bolt 1 4 20x1 2 Wing Nut 1 4 20 3 4 2 Wire the Safety Reversing Sensors PRE WIRED INSTALLATIONS Ifyour garage already has wires installed for the safety reversing sensors see page 17 HARDWARE Insulated Staple Not shown OPTION A INSTALLATION WITHOUT PRE WIRING 1 Run the wire from both sensors to the garage door opener Attach the wire to the wall and ceiling with the staples 2 St...

Page 18: ...lack wire would connectto the purple wire 4 Atthe garage door opener strip 7 16 inch 11 mm ofinsulation from each end ofthe wires previously chosen for the safety reversing sensors Twistthe like colored wires together 5 Insertthe wires connected to the white safety sensor wires to the white terminal on the garage door opener Insertthe wires thatare connected to the white black safety sensor wires ...

Page 19: ...outlet Ifthe plug doesn tfitinto your outlet contacta qualified electrician to install the proper outlet THERE ARE TWO OPTIONS FOR CONNECTING POWER OPTION A TYPICAL WIRING 1 Plug in the garage door opener into a grounded outlet 2 DO NOT run garage door opener atthis time TYPICAL WIRING OPTION B PERMANENT WIRING If permanent wiring is required by yourlocalcode referto the following procedure To mak...

Page 20: ...ly Green LED Amber LED If the receiving sensor is in direct sunlight switch it with sending sensor so it is on the opposite side of the door invisible light beam SENDING SENSOR RECEIVING SENSOR IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING 1 Make sure there is power to the garage door opener 2 Make sure the sensor wire is notshorted broken 3 Make sure the sensor has been wired correctly Wh...

Page 21: ...nts easy The adjustments allow you to program where the door will stop in the open UP and close DOWN position The electronic controls sense the amountofforce required to open and close the door The force is adjusted automatically when you program the travel NOTE Ifanything interferes with the door s upward travel itwill stop Ifanything interferes with the door s downward travel itwill reverse UP O...

Page 22: ...the DOWN Button until the door is in the desired DOWN position 5 Once the door is in the desired DOWN position press and release the AdjustmentButton The garage door opener lights will flash twice and the UP Button will begin to flash 6 Press and release the UP Button When the door travels to the programmed UP position the DOWN Button will begin to flash 7 Press and release the DOWN Button The doo...

Page 23: ...ntactwith the 1 1 2 inch board remove the board and open close the door 3 or 4 times to testthe adjustment Ifthe garage door opener continues to fail the safety reversal test call a trained door systems technician 1 2 3 Test the Protector System Withouta properly installed safety reversing sensor persons particularly small children could be SERIOUSLY INJURED or KILLED by a closing garage door 1 Op...

Page 24: ... 8 NEVER use handle to pull garage door open or closed Ifrope knotbecomes untied you could fall 9 After ANY adjustments are made the safety reversal system MUST be tested 10 Safety reversal system MUST be tested every month Garage door MUST reverse on contactwith 1 1 2 3 8 cm high object or a 2x4 laid flat on the floor Failure to adjustthe garage door opener properly increases the risk ofSEVERE IN...

Page 25: ...fully closed The safety reversing sensors do notaffectthe opening cycle ENERGY CONSERVATION For energy efficiency the garage door opener will enter sleep mode when the door is fully closed The sleep mode shuts the garage door opener down until activated The sleep mode is sequenced with the garage door opener lightbulb as the lightbulb turns offthe sensor LEDs will turn offand whenever the garage d...

Page 26: ...es are accessible by lifting up the push bar LEARN A DEVICE Any compatible remote controls wireless keyless entry or MyQ accessories can be programmed to the garage door opener by pressing the LEARN button the door control see page 27 LOCK The LOCK feature is designed to preventactivation ofthe garage door opener from remote controls while still allowing activation from the door control and keyles...

Page 27: ...ed by the number offlashes Number oftimes garage door opener lights flash Time the garage door opener lightstays on 1 1 1 2 Minutes 2 2 1 2 Minutes 3 3 1 2 Minutes 4 4 1 2 Minutes To cycle through the time intervals repeatthe step above Approximately 10 seconds LIGHT FEATURE Default is Active Deactivate Press and hold the LIGHT button until the garage door opener lights turn on then offagain Activ...

Page 28: ... steps above for programming additional remote controls or keyless entry devices Ifprogramming is unsuccessful program the remote using the learn button The command LED will flash once The command LED will flash once again 1 2 OR PIN 4GHI 5JKL 7PRS 8TUV 9WXY 0QZ ENTER 0 QZ ENTER 6MNO 3 PROGRAM USING THE GARAGE DOOR OPENER 1 Locate the Learn button on the garage door opener 2 Press and immediately ...

Page 29: ...e to pull door open or closed Ifrope knotbecomes untied you could fall DISCONNECT THE TROLLEY 1 The door should be fully closed ifpossible 2 Pull down on the emergency release handle RECONNECT THE TROLLEY The lockoutfeature prevents the trolley from reconnecting automatically 1 Pull the emergency release handle down and back toward the opener The door can then be raised and lowered manually as oft...

Page 30: ...ch side with the visor clip Insertreplacementbattery positive side up Replace the batteries with only 3V2032 coin cell batteries Dispose ofold batteries properly NOTICE To complywith FCC and orIndustryCanada IC rules adjustmentormodificationsofthistransceiverare prohibited THERE ARENOUSER SERVICEABLEPARTS Thisdevice complieswith Part15 ofthe FCC rules and IC RSS 210 Operation is subjectto the foll...

Page 31: ...are misaligned or were momentarily obstructed Realign both sensors to ensure both LEDs are steady and notflickering Make sure nothing is hanging or mounted on the door thatwould interruptthe sensors path while closing 1 5 Door moves 6 8 stops or reverses Manually open and close the door Check for binding or obstructions such as a broken spring or door lock correctas needed Check wiring connections...

Page 32: ...r or MyQ InternetGateway see page 24 My remote controlwillnot activate the garage door l Verify the lock feature is notactivated on the door control l Reprogram the remote control l Ifthe remote control will still notactivate the door check the diagnostic codes to ensure the garage door opener is working properly My doorwillnot close and the light bulbs blink on my motorunit The safety reversing s...

Page 33: ...ghts on when it detects a person entering the garage SECURITY 2 0 compatible 877MAX MAX Wireless Keyless Entry For use outside of the home to enable access to the garage using a 4 digit PIN Works with ALL LiftMaster openers from 1993 present 975LM Laser Garage Parking Assist Laser enables homeowners to precisely park vehicles in the garage 892LT 894LT 2 4 Button Learning Remote Controls Compatible...

Page 34: ...RATION TO THE ONE YEAR LIMITED WARRANTY PERIOD SET FORTH ABOVE EXCEPT THE IMPLIED WARRANTIES WITH RESPECT TO THE MOTOR WHICH ARE LIMITED IN DURATION TO THE FOUR YEAR LIMITED WARRANTY PERIOD FOR THE MOTOR AND NO IMPLIED WARRANTIES WILL EXIST OR APPLY AFTER SUCH PERIOD Some States do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you THIS LIMITED...

Page 35: ...e control 891AC 3 3V2032 Lithium battery 10A20 4 Remote control visor clip 29B137 5 Emergency release rope handle assembly 41A2828 6 2 Conductor bell wire white white red 41B4494 1 7 Door bracket w clevis pin fastener 41A5047 8 Header bracket w clevis pin fastener 41A4353 9 Safety sensor kit receiving and sending eyes with 3 9 m 2 conductor bell wire 41A5034 10 Straight door arm section 178B34 11 ...

Page 36: ...ule 041D7742 7 11 Cover 041D8144 12 Logic Board 045ACT 13 Logic Board End Panel 041D0240 Contact Information Repair Parts Address repair parts order to The Chamberlain Group Inc 6050 S Country Club Rd Tucson AZ 85706 For installation and service information call 1 800 528 9131 Or visit us online at www liftmaster com Before calling please have the model number of the garage door opener If you are ...

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