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LiftMaster MT Support Question

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Question posted by patrickkaren86 on April 14th, 2018

My Lift Master Mt-1211, 1/2 Hp

Will open from closed position but will not close when opened.Tried both remote and wall control. thanks for any help

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Related LiftMaster MT Manual Pages

MT5011E Installation Manual - Page 1

INSTALLATION MANUAL MODEL MT5011E/BMT5011E MEDIUM DUTY DOOR OPERATOR RaNdoBiwuoiRlwteiitcnheiver INTENDED FOR PROFESSIONAL INSTALLATION ONLY Visit www.LiftMaster.com to locate a professional installing dealer in your area. 2 YEAR WARRANTY Serial # (located on electrical box) Installation Date Radio Receiver Built on Board 315MHz NOT FOR RESIDENTIAL USE A SAFETY DEVICE IS HIGHLY RECOMMENDED.

MT5011E Installation Manual - Page 2

...pages, it . WARNING • DO NOT attempt repair or service of your door and/or the door operator if you do not comply with the cautionary statements that WARNING accompany them ... 21 TROUBLESHOOTING 22-23 DIAGRAM 23 REPAIR PARTS 24-26 ACCESSORIES 27 CONTROL CONNECTIONS BACK COVER SAFETY INFORMATION WWAARRNNIINNGG Mechanical CAWUATIRONNING Electrical When you see this manual and...

MT5011E Installation Manual - Page 3

... 150 100 NOTE: Actual track length will exceed door height by the manufacturer. • Radio receiver: A factory installed radio receiver allows remote controls, keyless entries and other remote command devices to be programmed to the operator. • Timer To Close: The Timer To Close feature allows the door to Basic Programming Section for descriptions of wiring types...

MT5011E Installation Manual - Page 4

...Hz WIRING TYPE C2 Standard B2 configurable (see Basic Programming section) CONTROL WIRING 16-22 AWG MECHANICAL DOOR SPEED 12" (30.48 cm) / second OUTPUT FORCE 125 ... BEARINGS Maintenance Free FINISH Powder coated, Corrosion Resistant Steel SAFETY DISCONNECT Quick disconnect door arm for emergency manual door operation. BRAKE (BMT ONLY Solenoid actuated disc brake LIMIT ADJUST:. . . ...

MT5011E Installation Manual - Page 5

...OPEN CLOSE O STOP 8 4 10 9 7 2 12 3 13 11 6 5 ITEM DESCRIPTION QTY 1 Operator 1 2 Track (left & right) Door height plus 2' 2 3 Track Spacers 2 4 Front Idler 1 5 Trolley 1 6 Take-up Bolt 1 7 Chain 1 8 Master... on door height, the quantity of track spacers and hardware may not reverse when required. • NEVER try to loosen, move or adjust doors, door springs,...

MT5011E Installation Manual - Page 6

ASSEMBLY 1 Install track spacers Position the track spacers evenly over the length of the track using the pre-punched holes. Track Spacers Header End Flange Hex Nut Bolt 3/8" - 16 x ... -16 x 1" Lock Washer Header End Lock Washer Bolt 3/8" -16 x 1" 3 Assemble trolley Trolley Flange Nut 3/8" - 16 Take-Up Bolt Flange Nut 3/8" - 16 Lock Washer 6 For doors up to 12' use 2 track spacers, for 14...

MT5011E Installation Manual - Page 8

6 Install chain Attach chain to front of trolley Chain Trolley Master Link ASSEMBLY Track Front Idler Wrap chain around front idler Chain Run chain around track in the direction indicated Slide ... Attach chain to back of trolley Adjust the chain by tightening the inner nut Trolley Chain Inner Nut Master Link Bottom of Track 3" Chain 8 Bottom of Track More than 3" Chain

MT5011E Installation Manual - Page 9

....96 cm) off center mounting may be required due to the header wall and the ceiling. Extension springs require center mounting. 1 Mark the center of the door Mark the center line of the door. Extend the line on torsion spring doors. TYPICAL INSTALLATION DETERMINE HEADER BRACKET MOUNTING LOCATION The trolley operator is generally mounted...

MT5011E Installation Manual - Page 10

... T I O N WARNING 3 Position header bracket Center header bracket over drywall. • Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry. • NEVER try to loosen, move or adjust door, springs, cables, pulleys, brackets,...MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise door might not reverse when required. Cotter Pin ADVERTENCIA ...

MT5011E Installation Manual - Page 11

.... Vertical NOTE: Refer to structural supports of the garage. T Y P I C A L I N S T A L L A T I O N WARNING 6 Hang the operator Secure the operator using appropriate fasteners and locking hardware that will support the weight of Door PRECAUCIÓNVertical Door Door Bracket Use appropriate hardware to secure door bracket to door (Not Provided). CAUTION To avoid possible SERIOUS INJURY...

MT5011E Installation Manual - Page 12

... Attach power and ground wires to high voltage terminal strip Power Conduit Ground Neutral Hot Control Line Power 115 Vac Single Phase Do NOT turn power on a dedicated circuit and .... • ALL power wiring should be visible and clearly labeled. • ALL power and control wiring MUST be properly grounded and connected in accordance with local electrical codes. When a larger wire...

MT5011E Installation Manual - Page 13

... are recommended for 3-button control station Remove cover ^OPEN Screws CLOSE O STOP Wall Secure using appropriate hardware 5' (1.5 m) 3-Button Control Station CAUTION To prevent possible SEVERE INJURY or DEATH, install reversing sensors when: • The radio is used. • The 3-button control station is out of sight of the door. • Or ANY other control (automatic or manual) is...

MT5011E Installation Manual - Page 14

...or DEATH from the front of the electrical box. Depress retaining plate Adjust OPEN limit Retaining Plate OPEN Limit Nut OPEN Limit Switch CLOSE Limit Nut AVERTISSEMENCLTOSE Limit Switch ATTENTION Increase Door Travel Adjust CLOSE limit Increase Door Travel Decrease Door Travel AVERTISSEMENT AVERTISSEMENT Decrease Door Travel SAFETY Limit Switch NOTE: When retaining plate is released, verify...

MT5011E Installation Manual - Page 15

... bottom of cotterpin to secure clutch nut OPTIONAL SAFETY DEVICE CONFIGURATIONS To protect against accidental entrapment or injury from a moving door it is closing , the door will stop and typically reverse to the full open position. Safety Edge SENSING EDGES When properly connected, the sensing edge will make contact with cotter pin. Remove Tape Holding...

MT5011E Installation Manual - Page 16

... with 4-wire sensing edge (White/Black) 4-wire electric sensing edge (White) TTC ^^^^ 1 LEARN STOP CLOSE OPEN LEDD14 2 3 4 LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN 5 6 7 AUX ANT AUX ANT TTC ^^^^ 1 LEARN STOP CLOSE OPEN LEDD14 2 3 4 LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN 2-Wire electric or pneumatic sensing edge 2-wire electric or pneumatic sensing edge (White/Black) (White...

MT5011E Installation Manual - Page 17

... Button Purple Wire Antenna Auxiliary Antenna Connection LED Field Wiring Terminal Factory Wiring Connector FUNCTION Open Door Close Door Stop Door Programs the remote controls and performs additional programming Programs the Timer to Close Primary Antenna For use with external antenna kit EXT-ANT. Not Provided Used during programming and diagnosing error codes Field wiring connections Factory...

MT5011E Installation Manual - Page 21

... limits (refer to Adjustment section). The door should close . 5. In C2 wiring the remote control will flash 7 times on power up. Allow the door to manually disconnect the door from obstruction, check safety devices. Weak or broken springs or unbalanced door could result in a safe manner and how to fully open . 3. Door Arm Lift free end of the limits. WARNING...

MT5011E Installation Manual - Page 26

...-LD-1 Motor Kit, Medium Duty 1/2 hp, 115 Volt. K75-12870 Door arm kit Complete with Master Link Brake Plate Pad Assembly Track for doors 8' to 10' Track for doors 10' to 12' Track for 14' doors #48 Chain for doors 8' to 10' #48 Chain for doors 10' to 12' #48 Chain for 14' doors 26 Clutch Disc Clutch Plate...

MT5011E QuickStart Guide Manual - Page 1

... in 315 MHz radio receiver permits as many as 20 Security✚® remote controls or dip switch remote controls in fully closed position. 2. Open Close Stop TO ERASE ALL REMOTE CONTROLS Press and hold the button on the logic board (OPEN, CLOSE or STOP). Electrical Box Logic Board 014A1030 J4 C32 TP1 C20 R25 C9 C21 U1 D7 D5 U4 D6...

MT5011E QuickStart Guide Manual - Page 2

... power wires through the control wiring conduit hole in same conduit as shown making sure the open and close door properly. Connect the arm assembly to the door bracket with the powerhead ... 5 QuickStart for the model MT/BMT door operator IMPORTANT: This QuickStart is intended to stop the door by hand during travel. These instructions are positioned between the limit switches before ...