LiftMaster MJ Support Question
LiftMaster MJ Support Question
Find answers below for this question about LiftMaster MJ.Need a LiftMaster MJ manual? We have 4 online manuals for this item!
Question posted by prestige21246 on February 25th, 2015
Rolling Steel Door Starts Back Down After Fully Opened
Why does my rolling steel commercial garage start rolling back down after opening?What is the repair.Model MJ 1211.Where can I get the felt that goes between the rail and the door . It self sticks to the back of the door.what is this part actually called
Current Answers
Answer #1: Posted by TechSupport101 on February 25th, 2015 10:10 PM
TechSupport101
Member since:
May 24th, 2013 Points: 12,171,305
Member since:
May 24th, 2013 Points: 12,171,305
Hi. Garage door opens and/or closes by itself:
Stuck remote control button. Check all remotes. check LED on receiver.
Staples around Multi-Function Control Panel bell wire could be cutting into that wire. Remove wires from opener and test. Replace staples causing intermittent short.
Multi-Function Control Panel could have sticking door control push bar. Remove wires from control panel and test. Replace control panel if defective
Related LiftMaster MJ Manual Pages
MGJ User's Guide Manual - Page 2
... STOP CLOSE OPEN
LEARN STOP CLOSE OPEN LEDD14
1
2
3
4
5
6
7
ADVERTENCIA
PRECAUCIÓN
TO PROGRAM
Photo Eye
Press and hold the LEARN and STOP buttons until the LED goes
out (approximately 3 seconds). NOTE: 1. The LED on purchasing a quality, LiftMaster Medium Duty
existing 315 MHz product line as well as a Timer To Close (TTC)
Commercial Door Operator. It...
MGJ User's Guide Manual - Page 4
...light). 3. Press and hold the LEARN button (over 5 seconds) until the LED goes out. Electrical Box
Logic Board
014A1030
J4 C32
TP1 C20
R25
C9
C21
U1
D7...) SETTING
1. MODE
B2 B2 with door in fully closed position. 2.
TTC will light). 2. Press and release the LEARN button (LED will become active after a preset time, adjustable from the open limit after completion of the STOP button...
MGJ User's Guide Manual - Page 5
...& INMGH )
The operators have provisions for manually operating the door in an open .
Weak or broken springs or unbalanced door could result in case of door arm to engage roll pin. AVERTISSEMENT
TO DISCONNECT DOOR FROM OPENER TO RECONNECT DOOR ARM TO TROLLEY
NOTICE
Emergency
Emergency Disconnect
Door Arm
ATTEEmergNencyTION
Pull emergency Disconnect
release handle
straight down. To...
MGJ User's Guide Manual - Page 7
....
Press CLOSE button. (The door should open direction.)
ATTENTION 2. Door should move in the open . ADVERTENCIA PRECAUCIÓN
ADVERTENCIA ADVERTENCIA
7
TEST REMOTE CONTROL * Requires B2 wiring type and compatible LiftMaster remote
control.
The door
AVERTISSEMENT should close to fully open. 3.
Door should close . Allow the door to obstruction and reverse if...
MGJ User's Guide Manual - Page 8
...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 POOR RANGE...
MGJ User's Guide Manual - Page 12
...' wide. CONTROL STATIONS
02-102
2-Button Control Station: Steel enclosure. CLOSE
PRESS TO
R ING
Coil Cord 18 AWG WireOPEN(20'):
Black coil cord, 2 wire,CLO1SE8 AWG, 20'
PRESS TO
extended.
CPS-L
Non-Monitored 65-8202
Commercial Protector SystePmRE®SS:
TO
OPEN
Provides protection on doors up
to 30' wide. NEMA-O4PEN rated. WPB1LM...
MJ5011E QuickStart-2008 Manual - Page 1
... disconnect chain (sash chain) to disconnect the door from door. Make sure the limit nuts are equipped with adjustments.
7 Align Sprockets
Optimum Distance 12-15"
MODEL MJ This operator has a floor level disconnect chain ...the control wiring conduit hole in position, secure the operator to open and close to ensure that the total door system is safe for its intended use. c The disconnect ...
MJ5011E QuickStart-2008 Manual - Page 2
...controls in fully closed position. 2.
QuickStart for the model MJ/MH/MHS door operator Medium Duty Logic
This QuickStart is the responsibility of the remote
control until the LED goes out....release to complete programming (LED will
add 5 seconds to the Timer to close from the open command.
Repeat steps 1 and 2 for further information. Press and hold the LEARN button...
MJ5011E Installation-2008 Manual - Page 2
... fully understand this Signal Word on the following pages, it will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany it. When you see these Safety Symbols and Signal Words on the following pages, they will alert you to your commercial door...
MJ5011E Installation-2008 Manual - Page 3
...Not recommended for use on the wiring type. FT)
24 ga. Steel 20 ga. Steel Insulated
16 ga. Steel Insulated
---
24 ga. 22 ga. Intended for use on vertical or high-lift sectional doors, or rolling door products. Steel 18 ga. Steel --- APPLICATIONS
INTRODUCTION
This Medium Duty Commercial Door Operator includes a number of features that will require an optional safety...
MJ5011E Installation-2008 Manual - Page 4
...63" (39..6232"cm)
22..9911""(7.39 cm)
MOUNTING DIMENSIONS A - Bracket Mounting (rolling door)
18.5" (1487.5c0m")
A
B 6(1.636.4.55"01 "cm)
B A
A
..." (293..1394"cm)
Hand Chain Wheel present with model MH only.
7.070" " (17.78 cm)
...DOOR SPEED Approximately 9" (23 cm) / second depending on door setup
OUTPUT FORCE 125 ft. OUTPUT RPM:
MJ 80 RPM MH 80 RPM MHS 38.6 RPM LIMIT ADJUST Fully...
MJ5011E Installation-2008 Manual - Page 5
....
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
...• If the door lock needs to remain functional, install an
interlock switch. • ALWAYS call a trained professional door serviceman if door
binds, sticks or is working smoothly...
MJ5011E Installation-2008 Manual - Page 13
... 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 that the retaining plate is fully seated with cotter...
MJ5011E Installation-2008 Manual - Page 19
... active.
Open
Close Stop
2. Press the desired button on the remote control until the LED goes out....seconds of the 20 memory channels in fully closed position. 2. Electrical Box
Logic...OPEN
LED
2
3
4
5
6
7
K2 LT
C29 R24 P1
D9
LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN
LEARN STOP CLOSE OPEN LEDD14
1
2
3
45
67
MEP1 LMEP2 COM INTRLK STOP CLOSE OPEN
NOTICE: To comply with door...
MJ5011E Installation-2008 Manual - Page 20
... Press remote control button. 4. Allow door to fully open. 3. WARNING
TESTING
WARNING
CAUTION Turn on power, LED will open the door only. 1. TEST 3-BUTTON CONTROL STATION
ATTENTION 1. Release CLOSE button. Press STOP button. (The door should stop if in the open direction.) 2. TEST THE SAFETY DEVICES (IF INSTALLED) 1. Open the door. 2. Door should close . Press remote control button...
MJ5011E Installation-2008 Manual - Page 31
...TO
R ING
21-2LM
Commercial Protector System: OPEN
Provides protection on doors up to 45' wide. OPEN
CLOSE
MOUNTING BRACKETS
10-12360
Mounting Brackets:
Angle mounting brPaREcSSket, Painted steel, for control wiring.
...Station SECURITY✚®: Rugged composite housing. (Wireless controls can not be used with MJ, MGJ, and MH operators.
PRESS TO
R ING
86LM (15') 86LMT (25')
...
MJ (BLACK LINE) Manual - Page 2
... Mounting (rolling door)
A
A
18.50"
14.75"
A
A
7.00" 10.88"
15.78"
9.19"
Hand Chain Wheel present with electrical interlock for sensing device to the bottom edge of door. OPEN/CLOSE/STOP
WIRING TYPE C2 (Standard) Momentary contact to OPEN & STOP, constant pressure to CLOSE, open override plus wiring for emergency manual door operation. DISCONNECT :
SAFETY
Model MJ: Floor...
MJ (BLACK LINE) Manual - Page 6
... Switch
6
Refer to spin freely. Important Notes:
a. Proceed with Limit Switch Adjustments before proceeding with top of door opening . b. TAKE-UP REEL: Take-up the door opening .
4. After adjustment, release plate and ensure it seats fully in open (N.O.) output are compatible with your operator.
This includes pneumatic and electric edges. If not pre-installed by either...
MJ (BLACK LINE) Manual - Page 8
.../STOP) is desired (B2 wiring) you must include an entrapment protection device. Control Station
Push Buttons
OPEN CLOSE STOP
WARNING
TO PREVENT ENTRAPMENT DO NOT START DOOR DOWNWARD
UNLESS DOORWAY IS CLEAR
WARNING Notice
8 Reversing devices are recommended for all connections. Refer only to the replacement wiring diagram for ALL installations.
WARNING
...
MJ (BLACK LINE) Manual - Page 9
... diagram, the control circuit will then open a fully closed door, close a fully open door, and reverse a closing door from
the radio transmitter.
NEVER permit children to stop the door by hand during travel . bracket marked R1 R2 R3 is located on the FIELD WIRING CONNECTIONS diagram. However, for complete door control from a remote, a commercial three-channel radio receiver
(with...
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