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The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlaingroup.com

GARAGE DOOR OPENER

For Residential Use Only 

Owner’s Manual

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 opener are required to ensure safe operation.

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

Model M100 - 1/2HP

Model M50 - 1/3HP       

®

Summary of Contents for AccessMaster M100

Page 1: ... 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 opener are required to ensure safe operation The model number label is located on the front panel of your opener Model M100 1 2HP Model M50 1 3HP ...

Page 2: ...ge door opener 29 Having a problem 29 30 Programming Pages 31 32 To add a hand held remote control 31 To erase all codes 31 3 Channel remotes 31 To add or change a Keyless Entry PIN 32 Repair Parts Pages 33 34 Rail assembly parts 33 Installation parts 33 Motor unit assembly parts 34 Accessories 35 Repair Parts and Service 36 Warranty 36 TABLE OF CONTENTS When you see these Safety Symbols and Signa...

Page 3: ... their hardware all of which are under EXTREME tension Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid entanglement Preparing your garage door Before you begin Disable locks Remove any ropes connected to garage door Complete the following test to make sure your garage door is balanced and is not sticking or binding 1 Lift ...

Page 4: ...rvey your garage area to see if any of the conditions below apply to your installation Additional materials may be required You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener FINISHED CEILING Support bracket fastening hardware is required See page 13 Slack in chain tension is normal when garage door is closed Sa...

Page 5: ...Model M50 Model M100 Multi Function Door Control Panel LOCK LIGHT Model M100 Your garage door opener is packaged in two cartons which contain the motor unit and all parts illustrated below Accessories will depend on the model purchased If anything is missing carefully check the packing material Parts may be stuck in the foam Hardware for installation is also listed below Carton Inventory INSTALLAT...

Page 6: ... unit WARNING CAUTION ASSEMBLY STEP 2 Attach the Chain to the Sprocket and Install the Sprocket Cover Position chain over the sprocket If necessary loosen the outer nut on the trolley to obtain more chain slack Insert the second washered screw CAUTION Use only the bolt previously removed from motor unit Tighten both bolts securely through the T rail into the motor unit as shown Install the sprocke...

Page 7: ... garage door opener only on properly balanced and lubricated garage door An improperly balanced door may not reverse when required and could result in severe injury or death 3 All repairs to cables spring assemblies and other hardware MUST be made by a trained door systems technician before installing opener 4 Disable all locks and remove all ropes connected to garage door before installing opener...

Page 8: ... shown Draw an intersecting horizontal line on the header wall 2 above the high point This height will provide travel clearance for the top edge of the door Proceed to Step 2 page 10 One piece door with horizontal track To prevent possible SERIOUS INJURY or DEATH Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling otherwise garage door might not reverse when req...

Page 9: ...shown Measure the distance from the top of the door to the floor Subtract the actual height of the door Add 8 to the remainder See Example 3 Close the door and draw an intersecting horizontal line on the header wall at the determined height NOTE If the total number of inches exceeds the height available in your garage use the maximum height possible or refer to page 10 for ceiling installation Doo...

Page 10: ... Garage Door Travel Vertical Centerline Header Wall Garage Door UP CEILING MOUNT ONLY Wall Mounting Holes Optional Wall Mounting Holes The nail hole is for positioning only You must use lag screws to mount the header bracket UP CEILING MOUNT ONLY Door Spring Header Bracket 2x4 Structural Support Vertical Centerline UP CEILING MOUNT ONLY Ceiling Mounting Holes The nail hole is for positioning only ...

Page 11: ...omeone hold the opener securely on a temporary support to allow the rail to clear the spring Position the rail bracket against the header bracket Align the bracket holes and join with a clevis pin as shown Insert a ring fastener to secure Header Bracket Chain Pulley Bracket Temporary Support Header Wall Garage Door T rail IN C R E A S E T R A V E L D O W N U P Clevis Pin 5 16 x2 3 4 Ring Fastener ...

Page 12: ...t for setting an ideal door to rail distance Raise the opener onto a stepladder You will need help at this point if the ladder is not tall enough Open the door all the way and place a 2x4 laid flat on the top section beneath the rail If the top section or panel hits the trolley when you raise the door pull down on the trolley release arm to disconnect inner and outer sections Slide the outer troll...

Page 13: ... 6 Check to make sure the rail is centered over the door or in line with the header bracket if the bracket is not centered above the door 7 Remove the 2x4 Operate the door manually If the door hits the rail raise the header bracket 8 Grease the top and underside of the rail surface where the trolley slides with rail grease To avoid possible SERIOUS INJURY from a falling garage door opener fasten i...

Page 14: ...e wire in several places Do not pierce wire with a staple creating a short or open circuit 4 Connect bell wire to the opener terminal screws as follows white to 2 and white red to 1 Fig 5 5 Use tacks or staples to permanently attach entrapment warning label to wall near door control and manual release safety reverse test label in a prominent location on inside of garage door NOTE DO NOT connect th...

Page 15: ...and Handle Thread one end of the rope through the hole in the top of the red handle so NOTICE reads right side up as shown Secure with an overhand knot at least 1 from the end of the rope to prevent slipping Thread the other end of the rope through the hole in the release arm of the outer trolley Adjust rope length so the handle is 6 feet above the floor Secure with an overhand knot NOTE If it is ...

Page 16: ...the black line wire to the screw on the brass terminal the white neutral wire to the screw on the silver terminal and the ground wire to the green ground screw The opener must be grounded Reinstall the cover To avoid installation difficulties do not run the opener at this time RIGHT WRONG To prevent possible SERIOUS INJURY or DEATH from electrocution or fire Be sure power is not connected to the o...

Page 17: ...ther can be installed on the left or right of the door as long as the sun never shines directly into the receiving eye lens The mounting brackets are designed to clip onto the track of sectional garage doors without additional hardware If it is necessary to mount the units on the wall the brackets must be securely fastened to a solid surface such as the wall framing Extension brackets see accessor...

Page 18: ...edge of the track as shown in Figure 1 If your door track will not support the bracket securely wall installation is recommended Wall installation Place the bracket against the wall with curved arms facing the door Be sure there is enough clearance for the sensor beam to be unobstructed If additional depth is needed an extension bracket see Accessories or wood blocks can be used Use bracket mounti...

Page 19: ... the sending eye wing nut and readjust aiming directly at the receiving eye Lock in place Loosen the receiving eye wing nut and adjust sensor until it receives the sender s beam When the green indicator light glows steadily tighten the wing nut TROUBLESHOOTING THE SAFETY SENSORS 1 If the sending eye indicator light does not glow steadily after installation check for Electric power to the opener A ...

Page 20: ...oor panel support and the door bracket Drill 3 16 fastening holes Secure the door bracket using the two 1 4 14x5 8 self threading screws Figure 2A Alternately use two 5 16 bolts lock washers and nuts not provided Figure 2B Metal insulated or light weight factory reinforced doors Drill 3 16 fastening holes Secure the door bracket using the self threading screws Figure 3 Wood Doors Use top and botto...

Page 21: ...MINUM STEEL DOORS WITH GLASS PANEL ETC NOT PROVIDED ONE PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page They apply to one piece doors also Center the door bracket on the top of the door in line with the header bracket as shown Mark either the left and right or the top and bottom holes Metal Doors Drill 3 16 pilot holes and fasten the bracket...

Page 22: ...s far apart as possible to increase door arm rigidity Figure 3 Hole alignment alternative If holes in curved arm are above holes in straight arm disconnect straight arm Cut about 6 from the solid end Reconnect to trolley with cut end down as shown Bring arm sections together Find two pairs of holes that line up and join with bolt lock washers and nuts Proceed to Adjustment Step 1 page 24 Trolley w...

Page 23: ...rs 5 16 Ring Fastener Straight Arm Bolts 5 16 18x7 8 Door Bracket Clevis Pin 5 16 x1 1 4 Curved Door Arm Door Arm Door Arm Connector Hole Closed Door Fully Closed Trolley Emergency Release Handle Fully Open Trolley Open Door Door with Backward Slant Undesirable Door Arm Connector Hole Door Arm Correct Angle Press the Door Control push bar button The trolley will travel to the fully closed position...

Page 24: ... does not open at least 5 feet Adjust the UP open force as explained in Adjustment Step 2 If the door does not close completely Increase down travel Turn the down limit adjustment screw counterclockwise One turn equals 2 of travel If door still won t close completely and the trolley bumps into the pulley bracket see page 4 or 5 try lengthening the door arm page 22 and decreasing the down limit Wit...

Page 25: ...l clockwise Make small adjustments until the door completes a close cycle After each adjustment run the opener through a complete travel cycle Do not increase the force beyond the minimum amount required to close the door 2 Test the UP open force Grasp the door bottom when the door is about halfway through UP open travel The door should stop If the door is hard to hold or doesn t stop DECREASE UP ...

Page 26: ... on the one inch board remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment IMPORTANT SAFETY CHECK Repeat Adjustment Steps 1 2 and 3 after Each adjustment of door arm length limits or force controls Any repair to or adjustment of the garage door including springs and hardware Any repair to or buckling of the garage floor Any repair to or adjustment of ...

Page 27: ...y System If you purchase a new remote or if you wish to deactivate any remote follow the instructions in the Programming section Activate your opener with any of the following The hand held Remote Control Hold the large push button down until the door starts to move The wall mounted Door Control Hold the push button or bar down until the door starts to move The Keyless Entry See Accessories If sup...

Page 28: ...eature Press the Light button to turn the opener light on or off It will not control the opener lights when the door is in motion If you turn it on and then activate the opener the light will remain on for 4 1 2 minutes Press again to turn it off sooner The 4 1 2 minute interval can be changed to 1 1 2 2 1 2 or 3 1 2 minutes as follows Press and hold the Lock button until the light blinks about 10...

Page 29: ...e door The door may be frozen to the ground Remove any restriction The garage door spring may be broken Have it replaced Repeated operation may have tripped the overload protector in the motor Wait 15 minutes and try again 2 Opener operates from the remote but not from the Door Control Is the door control lit If not remove the bell wire from the motor unit terminals Short the red and white termina...

Page 30: ...adjustments to force or travel limits The need for occasional adjustment of the force and limit settings is normal Weather conditions in particular can affect door travel 11 The door reverses for no apparent reason and opener lights blink for 5 seconds after reversing Check the safety reversing sensor Remove any obstruction or align the receiving eye See Installation Step 10 12 The opener lights d...

Page 31: ...Door Control all three buttons are held 4 Release buttons when the motor unit lights blink It has learned the code If light bulbs are not installed two clicks will be heard KG KG 1 3 9 7 5 1 3 9 7 5 1 2 3 1 2 1 Press and release the learn button on the motor unit The learn indicator light will glow steadily for 30 seconds 2 Within 30 seconds press and hold the button on the hand held remote that y...

Page 32: ...r the present PIN then press and hold the button The opener light will blink twice Release the button 2 Press the new 4 digit PIN you have chosen then press Enter The motor unit lights will blink once when the PIN has been learned Test by pressing the new PIN then press Enter The door should move To set a temporary PIN You may authorize access by visitors or service people with a temporary 4 digit...

Page 33: ...ton 3 10A20 3V2032 Lithium battery 4 41A5056 7 Single function remote control housing no circuit board 5 41A5056 6 3 channel remote control housing no circuit board 6 29B137 Remote control visor clip 7 41A2828 Manual rope handle assy 8 41A5047 Door bracket w clevis pin fastener 9 217A238 2 Conductor bell wire white white red 10 41A4353 Header bracket w clevis pin fastener 11 178B35 Curved door arm...

Page 34: ... Lens M50 9 30B363 Capacitor 1 2 HP 30B387 Capacitor 1 3 HP 10 12A373 Capacitor bracket 11 41A3150 Terminal block w screws 12 41D3058 Universal replacement motor bracket assembly Complete with Motor worm bracket bearing assembly RPM sensor KEY PART NO NO DESCRIPTION 13 41A3583 19 Cover M100 41A3583 20 Cover M50 14 41A2818 Helical gear retainer w grease 15 41D3452 Limit switch assembly 16 41C4398A ...

Page 35: ... automatically turns opener lights on for 5 minutes when it detects a person entering the garage Sensor can be easily deactivated when desired 1710LM 976LG Extension Brackets Optional For safety sensor installation onto the wall or floor 973AC SECURITY Keyless Entry Enables homeowner to operate garage door opener from outside by entering a password on a specially designed keyboard Also can add a t...

Page 36: ...ED TO ABUSE MISUSE FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE OR ANY ALTERATIONS TO THIS PRODUCT LABOR CHARGES FOR DISMANTLING OR REINSTALLING A REPAIRED OR REPLACED UNIT REPLACEMENT OF BATTERIES AND LIGHT BULBS OR UNITS INSTALLED FOR NON RESIDENTIAL USE THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH OR RELATING TO THE GARAGE DOOR OR GARAGE DOOR HARDWARE INCLUDING BUT NOT LIMI...

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