LiftMaster 3950 Support and Manuals
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Most Recent LiftMaster 3950 Questions
Do You Have A Bigger Sprocket For This Aplicación?
(Posted by bucannasconsoda 10 years ago)
I need Liftmaster 3950 The Handbook In Spanish?
I searched the manual liftmaster in Spanish but I found
I searched the manual liftmaster in Spanish but I found
(Posted by karloboni 10 years ago)
3950 Error Code
My 3950 Will not close the door. The error code is 9 blinks which indicates the facory jumper is loo...
My 3950 Will not close the door. The error code is 9 blinks which indicates the facory jumper is loo...
(Posted by bgh0612 11 years ago)
What Size Shaft Does The Live Sprocket
Fit On Door?
(Posted by jgrowlett 11 years ago)
Popular LiftMaster 3950 Manual Pages
3950 Addendum Manual - Page 1
... 3950MB mounting brackets may be required. To order visit www.liftmaster.com or contact door supplier. NOTE: The inside mounting option takes away from clear door opening. The axle is opened or closed. ADDENDUM
DOOR COMPATIBILITY FOR MODEL 3950
IMPORTANT INSTALLATION INSTRUCTIONS
It is important to identify the door type before attempting an installation of the Model 3950 door operator. MOUNTING...
3950 Addendum Manual - Page 2
...side room depends on the mounting option for the Model 3950. Live Shaft Components
Minimum Side Room
The minimum amount of the door opening. The assembly is required to the outside bracket mount using the optional mounting bracket Model 3950MB, a minimum of 11" is held up by the Model 3950 driving a chain which spins the drums and rolls the door curtain. Live Shaft Clearances
Minimum...
3950 Addendum Manual - Page 5
... they interfere with operator installation.
Dead Shaft Door Offset
Drum Condition
The door drum on the side on the mounting option for the desired operator mounting position.
5 If bent, the drive chain may not align to the outside of the door opening, a minimum of side room depends on which the Model 3950 is required for the operator, however, the door brackets must not be...
3950 Manual - Page 1
®
DOOR OPERATOR Model 3950
For Light Duty Commercial Use
The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196
www.liftmaster.com
Com
patible with
Owner's Manual
■ Please read this manual and the enclosed safety materials carefully! ■ The door WILL NOT CLOSE unless The Protector System® is connected and properly aligned. ■ Periodic checks of...
3950 Manual - Page 2
...Notes
23
Repair Parts and Service
Back Page
INTRODUCTION Safety Symbol Review and Signal Word Review
This door operator has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the warnings that accompany it will alert you to the possibility of damage to your operator 16 Having a problem? (Troubleshooting 17...
3950 Manual - Page 3
...To prevent damage to door and operator: • ALWAYS disable locks BEFORE installing and operating the
operator. • ONLY operate door operator at 120V, 60 Hz to avoid
malfunction and damage. • DO NOT exceed 10 complete cycles of balance refer to extend 1-1/2" beyond the door mount bracket.
• If the operator is mounted below 6 feet (1.83 m).
See accessories page. For live...
3950 Manual - Page 4
... that accessories will depend on the model purchased. If anything is packaged in one carton which contains the motor unit and the parts illustrated below.
Carton Inventory
Your door operator is missing, carefully check the packing material.
2-Conductor Bell Wire White & White/Red
Mounting Bracket (4)
Operator
Door Sprockets
Safety Labels and
Literature
Hardware Inventory
Installation...
3950 Manual - Page 10
... a piece of the door as long as the wall framing. Extension brackets (see accessories) are available if needed. The invisible light beam path must be installed inside .
To prevent SERIOUS INJURY or DEATH from inside the building so that the sending and receiving eyes face each location to full open position. No part of its electronic...
3950 Manual - Page 15
... n NOTICE
15
The door operator will flash. Safety Reversing Sensor
Safety Reversing Sensor
ADJUSTMENT STEP 4 To Open the Door Manually
• The door should then be able to be opened manually.
• Return the door to disengage door
ONLY when door is CLOSED. Weak or broken springs or unbalanced door could be heard).
Without a properly installed safety reversing sensor...
3950 Manual - Page 17
...; Remove the bell wire from the door control terminals and operate from the single button control station:
• Are the wiring connections correct? HAVING A PROBLEM? (TROUBLESHOOTING)
1. If this operator is normal as long as it is connected, the operator should be opened and closed manually. Remove the obstruction or repair the door.
7. The operator strains to disconnect the...
3950 Manual - Page 18
... from brackets and shorten sensor wires to 1-2 feet (30-60 cm) from back
each of times then pause signifying it has found a potential issue.
Symptom: Door reverses while closing. • Check the factory installed jumper at door control, touch wires together.
Operator will flash a number of sensor. • Reattach sending eye to be in wire), replace...
3950 Manual - Page 19
... a Hand-held Remote Control (Not Provided)
Below are instructions for 30 seconds.
2. Release the button when the learn indicator light will glow steadily for programming your operator to reverse. If the optional remote light is operated with a non-rolling code transmitter, the technical measure in the door operator does not authorize the purchaser or supplier of eight...
3950 Manual - Page 20
...door operator. After a programmed number of hours or number of accesses, this temporary PIN will work, press the number of hours this temporary PIN expires and will blink. NOTE: If the optional remote light is installed, the light will no longer open the door...button.
3. To set the number of hours (up to 255), then press ✽. To set a temporary PIN:
1.
The door should move.
1....
3950 Manual - Page 22
Guide Mounting Bracket Kit: The bracket can be mounted in their door operator remote or from anywhere in several different configurations with the motor location outside by entering a password on a work light from their car with their home with an additional LiftMaster Security✚® remote.
3950MB
371LM
1-Button Security✚® Remote Control :
Includes visor clip.
...
3950 Manual - Page 24
... at prevailing prices and you will be billed accordingly. Technical Support Group 6050 S. WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION:
• PART NUMBER • PART NAME • MODEL NUMBER
ADDRESS ORDERS TO: THE CHAMBERLAIN GROUP, INC. Look for him in the Yellow Pages, or call our Service number for a list of dealers in your local LIFTMASTER/CHAMBERLAIN dealer.
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