LiftMaster 3800 Support Question
LiftMaster 3800 Support Question
Find answers below for this question about LiftMaster 3800.Need a LiftMaster 3800 manual? We have 1 online manual for this item!
Question posted by jacobneta on May 10th, 2012
It Works Fine But I Open It Manual 1 Time And The Open And Close Limits Are Gon
I OPEN IT MANUAL AND ITS LIKE THE OPEN AND CLOSE LIMITS ARE GONE . IT OPENS A LITTLE AND CLOSES AGAIN IF PRESSING THE REMOTE AGAIN BUT JUST A LITTLE BOTH WAYS ITS A DESESTER.
Current Answers
Answer #1: Posted by Idiotsiamyourking on February 14th, 2014 9:44 AM
Idiotsiamyourking
Member since:
February 14th, 2014 Points: 3,290
Member since:
February 14th, 2014 Points: 3,290
The reason the door opens and closes so quickly is because the safety sensors, which should be located somewhere near the bottom of the garage door on either side, are either not working, or not lined up correctly, or they may have been bumped out of alignment. It could also be the limit switches on the door opener itself need to be adjusted. Its a safety condition brought on by those sensors. If you need to open and close the door "FIRST" be sure to check nothing is blocking the door. "Hold" the up or down button on the remote or wall mount till the door reaches the opened or closed position then let it go.
Related LiftMaster 3800 Manual Pages
3800 Manual - Page 1
...
See Page 13 for
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® and cable tension monitor are
connected and properly aligned. ■ Periodic checks of the opener are required to ensure safe...
3800 Manual - Page 2
...-16
Adjustment
17-20
Program the travel limits 17 Setting the force 18 Test the safety reversal system 19 Test The Protector System 19 Test cable tension monitor 20 Test power door lock 20 To open door manually 20
Operation
21-25
Operation safety instructions 21 Using your garage door opener 21 Using the wall-mounted control console...
3800 Manual - Page 7
NEVER connect garage door opener to power source until pilot holes align with a 1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on properly balanced and lubricated garage door. Place manual release/safety reverse test label in SEVERE INJURY or DEATH.
3. Close the garage door completely. 2. Drill 3/16" pilot holes at a right angle to the torsion bar to wall. 6. NOTE: The motor...
3800 Manual - Page 8
...prevent possible SERIOUS INJURY or DEATH from being manually opened once the door is fully closed. 1. INSTALLATION STEP 3
Install Power Door Lock
The lock is used to prevent the garage door from a
CAUTION falling garage door:
• If possible, use emergency release handle unless garage doorway is ideal in most installations. 2. Select a door roller to secure wire in several places. 6. If...
3800 Manual - Page 9
... installed before the garage door opener will reverse the door when excessive slack ...closing completely when slack is supplied as the opener. Run bell wire to the wall using the wall anchors (2) and the #8 hex head screws (2) provided in cable on top of door. Use insulated staples to monitor the cables for anchors).
4. NOTE: Cable must be mounted on the opposite side of garage door...
3800 Manual - Page 10
... console by gently prying at this time. Remove push bar cover by color: white wire to the W (2) and white/red wire to secure. Connect bell wire to operate the same garage door opener, it may damage the LCD screen. WARNING
To prevent possible SERIOUS INJURY or DEATH from a closing garage door. To prevent possible SERIOUS INJURY or...
3800 Manual - Page 12
...the proper outlet.
Be sure the opener is required by your garage door opener has a grounding type plug with ...Garage door installation and wiring MUST be in compliance with ALL local electrical and building codes.
• NEVER use an extension cord, 2-wire adapter or change plug in any way...opener at this time. To avoid installation difficulties, do not run the opener at this time...
3800 Manual - Page 14
... shines directly into the receiving eye lens. This is closing garage door: • Correctly connect and align the safety reversing sensor.
If an obstruction breaks the light beam while the door is a required safety device and cannot be securely fastened to full open position, and the opener lights will detect an obstacle in masonry if repositioning...
3800 Manual - Page 17
... down , press and release either the black or purple button.
Black moves the door UP (open ) limit and begins closing garage door. • NEVER learn forces or limits when door is at desired UP position
BLACK PURPLE
Figure 3
Figure 4
BLACK
PURPLE
or
LOCK
LIGHT
Push either button to Adjustment Steps 2, Setting the Force.
See Troubleshooting section.
4. Push the remote control...
3800 Manual - Page 18
...close) position. Door MUST reverse on floor. Push the remote control or control console a third time to send the door to open and close your door.
Repair door first
• Too much force on garage door... reversal system MUST be SERIOUSLY INJURED
or KILLED by a closing garage door.
• NEVER learn forces or limits when door is located on the unit (Figure 1).
2.
The LED...
3800 Manual - Page 19
... KILLED by a closing garage door. IMPORTANT SAFETY CHECK: Test the Safety Reverse System after: • Each adjustment of limits, or force controls. • Any repair to or adjustment of the garage door
(including springs and hardware). • Any repair to or buckling of the opener. ADJUSTMENT STEP 4
Test The Protector System®
• Press the remote control push button...
3800 Manual - Page 20
... function, the lock can be fully closed if possible. ADJUSTMENT STEP 7
To Open the Door Manually
Disengage door lock before the door begins to the opener, pull down the emergency release handle straight down a second time.
The door will blink 9 times. WARNING
To prevent possible SERIOUS INJURY or DEATH from a
CAUTION falling garage door:
• If possible, use emergency release...
3800 Manual - Page 21
.../or unexpectedly.
7. The sensor has no obstructions to garage door opener BEFORE making any remote, follow the instructions in SEVERE INJURY or DEATH.
11. ONLY activate garage door when it will close.
5. ALWAYS keep garage door in a partially open , the door will not close . Your opener will reverse.
3. Activate your opener with the Control Console, the Outside Key lock, or...
3800 Manual - Page 22
... feature
LIGHT
Press the Light button to
open and close the door. The 4-1/2 minute interval can be learned and the worklight will turn it detects a person entering the
garage. Repeat again for a 3-1/2 minute interval, etc., up to 1-1/2 minutes. See Automatic Light Feature, below.
We recommend that you first disable the motion sensor. Press Remote Control Button to...
3800 Manual - Page 23
... and/or remote control are controlled by pressing the Lock button.
• Program the opener to match the remote control code. (Refer to a metal door, foil backed insulation, or metal garage siding.
23 Review installation instruction warnings on page 7.
• Is there a build-up to be sure door opens & closes fully. Review Installation Step 5, page 10.
3. Adjust
limits and/or...
3800 Manual - Page 24
...all remote controls.
6. The garage door opens and closes by its springs. The door doesn't open the power door lock.
• Use the emergency release handle to disconnect the door. See Installation Step 9.
10. If not, move the position of the opener, door may be opened and closed manually. Having a Problem? (Continued)
5. When power is restored, pull manual release a second time.
•...
3800 Manual - Page 25
... to wall and does not move. Symptom: Door reverses while closing. • Check for the sensors.
If ...door control. • If motor unit does not activate, disconnect door control wires from
back each of times then pause signifying it is still flashing 5 times... using shortened wires. Installed Safety Reversing
Sensor
Your garage door opener is not lit on stop bolt = Motor unit...
3800 Manual - Page 26
... for programming your garage door.
3. Within 30 seconds, press and hold the "learn indicator light will open and close when you wish to operate your opener to operate with your garage door.
4. If light bulbs are not installed, two clicks will be heard. Reprogram each remote or keyless entry you wish to operate your hand-held Remote Control
USING THE...
3800 Manual - Page 27
... hold buttons 1 and 9 for your garage door opener. To change an existing, known PIN
3. LOCK
LIGHT
If the existing PIN is already mounted outside the garage.
1. The opener light will blink once when the temporary PIN has been learned. Test by pressing the new PIN, then press Enter.
One Button Close: Opener can be heard. The keypad will be...
3800 Manual - Page 31
...
LIGHT
915LM
CLOSED OPEN
Garage Door Monitor:
Security for the largest door of hours or entries.
373LM 370LM
3-Button Security✚® Remote Control: Includes visor clip.
3-Button Mini-Remote Control with multiple garage doors.
Includes battery. Remote Work Light:
Enables homeowner to a programmable number of your garage door is open or closed.
Also can be limited to...
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