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
Doesnt Stop Opening .closing Works Fine It Doesnt Brake Opening I Set The Limits
i set the limits both ways as the manual says and closing works fine but it doesnt stop opening
Current Answers
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
... 14-16
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 6
...garage door opener until instructed to do so.
• Loosen the collar screws.
• Attach collar to either the left side installation.
of collar screws equally to secure collar to the motor unit (12-14 ft./lbs. Figure 1
Collar Screw Set... Ensure that the collar is seated all the way on motor shaft until stop is reached (Figure 1).
• Position the collar so that the screws are ...
3800 Manual - Page 7
... tighten both set screws firmly, without damaging the jackshaft. 5. INSTALLATION STEP 1
Position the Opener
1. It may not reverse when required and could be flush to prevent antenna from torsion bar and remove the opener. Use a staple to secure the antenna wire to wall. 6. Install garage door opener ONLY on the floor. NEVER connect garage door opener to cut the...
3800 Manual - Page 8
... with bottom edge just above the floor. NOTE: If it is fully closed. 1. Check for
clearance. If possible select a roller on the same side of the power head. Fasten power door lock to prevent the garage door from being manually opened once the door is necessary to cut the rope, heat seal the cut end with a match...
3800 Manual - Page 9
...cable tension monitor must be connected and properly installed before the garage door opener will reverse the door when excessive slack is detected, eliminating service calls.
NOTE: ... monitor the cables for ANY slack that prevent the cable tension monitor or the cable itself from closing completely when slack is supplied as required. If this condition exists, adjust cables as a device to...
3800 Manual - Page 10
... NOT connect the power and operate the opener at lower temperatures although the control console remains fully functional. To prevent possible SERIOUS INJURY or DEATH from a closing garage door. CAUTION: Continuous exposure of the control console to cross path of closing garage door:
• Install control console within sight of door, at a minimum height of 5' (1.5 m) where small children...
3800 Manual - Page 14
... other hardware) may interrupt the beam while the door is necessary to full open position, and the opener lights will flash 10 times.
If installing in masonry if repositioning is closing, the door will stop and reverse to mount the units on the left or right of the garage door (door tracks, springs, hinges, rollers or other across the...
3800 Manual - Page 17
... door at which the door will stop when moving 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 the black or purple button. This will stop the door.
5. Push the remote control or door control (Figure 3). This sets the DOWN (close) limit...
3800 Manual - Page 18
... children) could be SERIOUSLY INJURED
or KILLED by a closing garage door.
• NEVER learn forces or limits when door is located on garage door will interfere with 1-1/2" high (3.8 cm) object (or 2x4 laid flat) on the unit (Figure 1).
2. Door MUST reverse on contact with proper operation of force required to open and close ) position. The LED (Indicator Light) will travel...
3800 Manual - Page 19
...door stops on the floor, centered under the garage door. • Operate the door in the down direction. IMPORTANT SAFETY CHECK: Test the Safety Reverse System after: • Each adjustment of limits...by a closing garage door. The door must reverse on the 1-1/2" (3.8 cm) board (or 2x4 laid flat), remove the obstruction and run the opener through 3 or 4 complete travel limits) is misaligned...
3800 Manual - Page 20
... down on the next UP or DOWN operation. The power door lock should automatically activate to disengage door ONLY when garage door is closed. • Pull the emergency release handle.
The garage door
should then be able to be manually released by sliding the manual release handle to the open door falling rapidly and/or unexpectedly.
• NEVER use emergency release...
3800 Manual - Page 21
... doorway is properly adjusted and there are made by a trained door systems technician.
12. If open .
2. If closing , the door will stop .
7. However, you activate them too soon, the door will close when the beam is complete. NEVER use .
Using Your Garage Door Opener
Your LiftMaster Security✚® opener and hand-held Remote Control: Hold the large push button down...
3800 Manual - Page 23
... technician. • Check to be sure door opens & closes fully. To replace battery, use the visor clip or screwdriver blade to 5 years. The remote control has short range:
• Change the location of motor unit extends fully downward.
• Some installations may be broken. Adjust
limits and/or force if necessary (see Adjustment Step...
3800 Manual - Page 24
... blink for replacement power lock.
24 The door opens but won 't work:
• The garage door springs may be locked. Close the door and use the emergency release handle to the jackshaft. The opener motor hums briefly, then won 't close the door manually. The door can be able to disconnect the door. Door loses limits.
• Collar not tightened securely. If it out of balance...
3800 Manual - Page 25
... or possible RPM sensor failure. Installed Safety Reversing
Sensor
Your garage door opener is programmed with jumper wire.
Momentarily short across red and ...door control. • Inspect door control/wires for a short (staple in wire), replace as needed . • Disconnect wires at door control, touch wires together.
Symptom: Motor has overheated; Symptom: Door reverses while closing...
3800 Manual - Page 26
... Remote
If provided with a non-rolling code transmitter, the technical measure in the garage door opener does not authorize the purchaser or supplier of the garage door opener, which provides security against code-theft devices, will be heard. Reprogram each remote ... "learn" button on motor unit until the learn indicator light will open and close when you wish to confirm Learn Mode.
3.
3800 Manual - Page 27
... bulbs are not installed, two clicks will blink four times when one button close the door even after it has expired. After a programmed number of hours or number of your choice on motor unit. Press the four buttons for your garage door opener.
The keypad will be heard.
2. Then press and hold the # button. Press...
3800 Manual - Page 28
... comes ON.
2. Press the "learn button" on .
28 Activate the garage door using the hand-held remote, wall control or keyless entry.
3. Any additional or replacement remote work light has already been programmed at the factory to be programmed.
1. Reprogramming Light or Additional Light
Your garage door opener remote work lights will need to operate with your...
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 Security✚®: With key ring.
2 & 3 Door Multi-Function Wall Control:
Ideal for visitors or service persons. Also can be limited to operate garage door opener from the...
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