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LiftMaster MJ Support Question

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Question posted by vessey on December 14th, 2011

The Door Won't Open

When I push the up button on the mj-1211 opener, the motor runs but the will not go up. When I push the down button the motor does nothing. It seems that nothing engages to make the door go up. Any solution?

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Related LiftMaster MJ Manual Pages

MGJ User's Guide Manual - Page 2

... product line as well as a Timer To Close (TTC) Commercial Door Operator. Press and hold the LEARN and CLOSE buttons until the LED goes out (approximately 3 seconds). MONITORED SAFETY DEVICE C31 C31 Sensing Edge RESET TO C2 WIRING TYPE (Factory Default) Remove any opening device. • Wiring for ALL installations. NON-MONITORED SAFETY...
MGJ User's Guide Manual - Page 4

... and hold the desired button of the STOP button. 5. All programmed remote controls will light.) 2. Operation is running. Begin with FCC and or Industry Canada (IC) rules, adjustment or modifications of the next open command. Press and release the TTC button. 4. Example: 30 second TTC = 6 presses of the remote control until LED flashes rapidly, then...
MGJ User's Guide Manual - Page 5

... MT/BMT Emergency Disconnect CAUTION To prevent possible SERIOUS INJURY or DEATH from the chain retaining bracket before the door will Door open door falling rapidly and/ or unexpectedly. • NEVER use emergency release handle to engage the hoist mechanism. Pull emergency handle to allow arm to the appropriate instructions for Model MH 5 The disconnect...
MGJ User's Guide Manual - Page 7

...3. Place an obstruction in the open direction.) ATTENTION 2. Door should close . Release CLOSE button. Allow the door to fully open . 3. Press CLOSE button. (The door should close to make sure they are not set properly, contact your installing dealer. The door should close .) 4. Door should not close . Press STOP button. (The door should open. IMPORTANT NOTES: • Do not...
MGJ User's Guide Manual - Page 8

...RESPOND TO ANY COMMANDS No power Accessory failure Possible component failure OPERATOR MAKES Operator requires adjustment NOISE BUT DOOR DOES NOT MOVE DOOR DRIFTS AFTER OPERATOR STOPS Operator or door requires adjustment DOOR OPENS/CLOSES Operator requires adjustment TOO FAR DOOR REVERSES UNEXPECTEDLY Safety device activated RADIO FUNCTIONALITY NO RESPONSE REMOTE CANNOT BE PROGRAMMED...
MGJ User's Guide Manual - Page 12

... visor clip. 333LM OPEN 3-Button Tri-Colored Dip Switch Remote Control: Includes visor clip. CLOSE PRESS TO R ING Coil Cord 18 AWG WireOPEN(20'): Black coil cord, 2 wire,CLO1SE8 AWG, 20' PRESS TO extended. R ING CPS-L Non-Monitored 65-8202 Commercial Protector SystePmRE®SS: TO OPEN Provides protection on doors up to 30...
MJ5011E QuickStart-2008 Manual - Page 1

.... Make sure the operator output shaft is used , pull handle to the operator BEFORE manually operating your door. Back off power to disengage operator from nut on the appropriate side of the continuous loop hoist chain. Follow ALL local electrical codes. 11 Adjust the limit switches to open and close to Model MJ instructions...
MJ5011E QuickStart-2008 Manual - Page 2

...MJ/MH/MHS door operator Medium Duty Logic This QuickStart is running. 1 2 3 4 5 Electrical Box Logic Board 014A1030 J4 C32 TP1 C20 R25 C9 C21 U1 D7 D5 U4 D6 D4 C31 AAUUX AANNTT J2 L5 ^^^^ R27 TTC 1 C18 D14 LEARN STOP CLOSE OPEN...the STOP button will become...Push Direction Limit Nut Will Move During Travel SAFETY CLOSE Limit Nuts Retaining Plate 11 Limit Switches OPEN...
MJ5011E Installation-2008 Manual - Page 5

... letter of order. If your installation check that all components were provided. 3 ^OPEN ^CLOSE O STOP 1 2 ITEM 1 2 3 4 5 6 DESCRIPTION QTY Operator 1 Warning labels 2 3-Button station 1 Hoist hand chain (models MH and MHS only) 1 Door/Operator chain 1 Door sprocket 1 4 6 5 NOT SHOWN Installation Manual 1 Quickstart Guide 1 User's Guide 1 Caution Label 1 Installation...
MJ5011E Installation-2008 Manual - Page 11

... jumper if external interlock is used Control R27 TTC LEARN STOP CLOSE OPEN LEDD14 1 2 3 45 67 LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN Stop Close Open 3-Button Control Station ^^OPEN CLOSE O STOP Common ADVERTENCIA Secure warning signs to 3-button control station. Select appropriate knockout and run wire according to local electrical code from operator to wall PRECAUCI...
MJ5011E Installation-2008 Manual - Page 13

... there is fully seated with cotter pin. 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...
MJ5011E Installation-2008 Manual - Page 14

... photo eye will stop and typically reverse to the full open position. The sensing edge must be installed facing each other across the door, no more than 6" (15 cm) above the floor...eyes must be installed. SENSING EDGES When properly connected, the sensing edge will make contact with an obstruction while the door is recommended that a safety device (sensing edge or photo eyes) be ...
MJ5011E Installation-2008 Manual - Page 16

... LEDD14 1 2 3 4 5 6 7 LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN 8 9 10 ITEM 1 2 3 4 5 6 7 8 9 10 DESCRIPTION Open Button Close Button Stop Button Learn Button Timer to Close 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...
MJ5011E Installation-2008 Manual - Page 17

... C2 WIRING TYPE WITHOUT MONITORED SAFETY DEVICE A (Factory Default) • Momentary contact to open and stop with constant pressure to close command. NON-MONITORED SAFETY DEVICE MONITORED SAFETY DEVICE ADVERTENCIA...on the wiring type. The operator is used . • The 3-button control station is out of sight of the door. • Or ANY other control (automatic or manual) is shipped from...
MJ5011E Installation-2008 Manual - Page 21

...MJ This operator has a floor level disconnect chain to electrically disable the operator controls. 1. To operate the hoist: 1. The disconnect chain must be pushed up or pulled down manually. 3. CAUTION To prevent possible SERIOUS INJURY from the chain keeper before the door... to engage the hoist mechanism. Pull the disconnect chain (sash chain) to operate the door again ...
MJ5011E Installation-2008 Manual - Page 31

... 789 * 0# Wireless Single Push Button Control SECURITY✚®: Rugged composite housing. (Wireless controls can not be used in place of hardwired controls.) Wireless Access Control Keypad SECURITY✚®: Rugged composite housing. (Wireless controls can not be used with MJ, MGJ, and MH operators. ENTRAPMENT PROTECTION DEVICES OPEN CPS-LN4 OPEN Commercial ProtectorCLOSSE ystem...
MJ (BLACK LINE) Manual - Page 2

... RPM VOLTAGE 115V 1 Phase 60Hz, 230V 1 Phase 50Hz CURRENT See motor nameplate ELECTRICAL TRANSFORMER 24Vac CONTROL STATION: ......NEMA 1 3-button station. OPEN/CLOSE/STOP WIRING TYPE C2 (Standard) Momentary contact to OPEN & STOP, constant pressure to reverse. Output: #48 chain OUTPUT SHAFT SPEED:.....80 RPM DOOR SPEED approx. 9" per sec. Model MH: Floor level chain hoist...
MJ (BLACK LINE) Manual - Page 3

...door lock needs to the building purlins. An unbalanced door may be switched on either a vertical (standard) or horizontal mounting position. Retain 5-1/2" between operator and door shaft. c. Shaft Support Bracket with Bearing (Not Provided) Door Sprocket 5-1/2" (13.97 cm) All MJ... professional door serviceman if door binds, sticks or is out of door, and in the door opening, hook...
MJ (BLACK LINE) Manual - Page 5

...MJ instructions above for Models MJ and HMJ Pull the disconnect chain (small chain) to operate the door again electrically. Operate the door...Release the disconnect chain to engage the hoist mechanism. Refer to the appropriate instructions ...openings in case of the chain keeper mounted on the wall. Or if emergency egress device is used , pull handle to disconnect the door from the door...
MJ (BLACK LINE) Manual - Page 9

... of the person operating the equipment), and connect to door travel . 4. When a receiver is used . CAUTIWONARNING gate or garage door: • ALWAYS keep gate or garage door in parallel with the OPEN button. NEVER permit children to activate a commercial door opener, a reversing edge MUST be added to slip if the door is obstructed. NEVER permit anyone to persons trapped beneath...

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