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LiftMaster 3800 Support Question

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Question posted by Fieds4 on November 20th, 2011

Liftmaster 3800 Opener Issues

My new opener does not turn the torsion bar. The motor makes a sound for 2 seconds then stops while attempting to set the force and stop limits.

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Related LiftMaster 3800 Manual Pages

3800 Manual - Page 1

® GARAGE DOOR OPENER Model 3800 For Residential Sectional Doors With Torsion Assemblies Only Com Details The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com patible with 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. &#...

3800 Manual - Page 2

...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 22 Care of your garage WARNING door and/or the garage door opener...or from motor unit memory...

3800 Manual - Page 3

... cm) drums, not to be greatly reduced. Select the side that use a torsion bar, springs and a door no noticeable movement up to 180 sq. This opener is not corrected, life of this type of movement is compatible with the installation of your opener. Planning Survey your garage area to see if any of the conditions below . -

3800 Manual - Page 4

.... • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door WARNING opener to make sure your garage door is balanced and is out of balance, call a trained door systems technician if garage door binds, sticks or is not sticking or binding: 1. If your door binds, sticks or is out of balance. Cable tension should...

3800 Manual - Page 5

If anything is packaged in one carton which contains the motor unit and the parts illustrated below. Carton Inventory Your garage door opener is missing, carefully check the packing material. LOCK LIGHT LCD Motion Detecting Door Control Console Remote Control Visor Clip SECURITY✚® 3-Button Remote Control (1) Remote Light with Hardware Bag 2-Conductor Bell Wire...

3800 Manual - Page 6

... the Collar to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to do so. • Loosen the collar screws. • Attach collar to either the left side installation. NOTE: For most installations the screws should be facing up (accessible when attached to the torsion bar). • Tighten both...

3800 Manual - Page 7

...opener by a trained door systems technician BEFORE installing opener. 4. Motor unit Staple Torsion Bar 7 Place entrapment warning label on properly balanced and lubricated garage door. NEVER connect garage door opener...• NEVER try to make sure bracket is located on the floor. They could result in garage door or opener mechanisms. 8. WARNING INSTALLATION ...

3800 Manual - Page 8

... into the motor unit (Figure 2). Weak or broken springs or unbalanced door could result in an open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle to cut the rope, heat seal the cut end with hardware provided. 5. INSTALLATION STEP 3 Install Power Door Lock The lock is used to prevent the garage door from...

3800 Manual - Page 9

... ANY slack that the roller is on the opposite side of the cable. 5. HARDWARE SHOWN ACTUAL SIZE Figure 1 Opener Torsion Bar Drum Cable 2"-6" (5 cm15 cm) Cable Tension Monitor 1/8"-1/4" (3 mm-6 mm) Cable Tension Monitor Roller With Door Closed Preferred Orientation Figure 2 Wall Drum Cable 3/4" Min. (18 mm Min.) Figure 3 WHT/GRN WHT/GRN Cable Tension...

3800 Manual - Page 10

...Remove push bar cover by inserting top tabs first and then snap cover in tab with a staple, creating a short or open position but will travel . • ALWAYS keep garage door in new home construction),..., away from end of the control console is recommended to motor unit. The door will not return to each garage door opener. NEVER permit anyone to temperatures below -22°F (-30...

3800 Manual - Page 12

... If permanent wiring is grounded. To make a permanent connection through conduit, cut to make it fit outlet. Be sure the opener is required by your garage door opener has a grounding type plug with moving...does not come in the back of the motor unit (according to local code): • Remove the opener from the torsion bar, remove cover screws and set the cover aside. • Remove the ...

3800 Manual - Page 14

If an obstruction breaks the light beam while the door is closing, the door will stop and reverse to full open position, and the opener lights will move in masonry if repositioning is NO HIGHER than 6" (15 cm) above garage floor. If it is closing garage door: • Correctly connect and align the safety reversing sensor. above floor The...

3800 Manual - Page 15

... at each side of each other across the garage door, with the beam no higher than 6" (... the same distance out from the wall. Make sure all door hardware obstructions are cleared. They may be installed... in Figure 1. Floor installation (Figure 4): • Use wood blocks or extension brackets (See Accessories) to the opener...

3800 Manual - Page 17

... Light Black Button Purple Button To program the travel limits will interfere with 1-1/2" high (3.8 cm) object (or 2x4 laid flat) on floor. This will stop when moving up (open ) limit and begins closing garage door. • NEVER learn forces or limits when door is not stopping exactly where you may toggle the door back and forth using the black and purple...

3800 Manual - Page 18

...garage door. • NEVER learn forces or limits when door is binding or sticking. The door must travel to open ) position. See page 4, "Preparing your garage door." Door MUST reverse on contact with proper operation of force required to the UP (open and close ) position. Push the purple button twice to the DOWN (close the door. 1. ADJUSTMENT STEP 2 Setting the Force The force setting...

3800 Manual - Page 21

... Garage Door Opener Your LiftMaster Security✚® opener and hand-held Remote Control: Hold the large push button down until the door starts to disengage door ONLY when garage door is turned OFF. If open, the door will open position, it will close . 5. If closed . If opening , the door will blink once signifying the feature is complete. If the door has been stopped...

3800 Manual - Page 24

...to make sure the torsion bar is not moving left/right excessively. • Check to make sure the torsion bar is a new installation. The opener won't operate due to 20 times without power. 13. Having a Problem? (Continued) 5. See Installation Step 9. 10. The opener motor hums briefly, then won 't close the door manually. The door opens but won 't work: • The garage door springs...

3800 Manual - Page 25

... jumper wire. Installed Safety Reversing Sensor Your garage door opener is firmly secured to reset. 9 FLASHES Cable tension monitor reversal. Consult Diagnostic Chart below. Unplug to wall and does not move. RPM Sensor = Short travel 6-8" (15-20 cm). • Unplug unit to 1-2 ft (30-60 cm) from motor unit. Momentarily short across red and...

3800 Manual - Page 31

... enables homeowners to turn opener lights on a work light from their car with Security✚®: Includes visor clip. Keyless Entry with Security✚®: Enables homeowner to a programmable number of your garage door is open or closed. Remote Light Control: Enables homeowner to the model 3800 and 3500 garage door openers. Monitors up to 4 garage doors by entering a password...

3800 Manual - Page 32

..., Arizona 85706 SERVICE INFORMATION TOLL FREE NUMBER: 1-800-528-9131 LIFTMASTER® GARAGE DOOR OPENER FIVE-YEAR LIMITED WARRANTY LIFETIME MOTOR LIMITED WARRANTY The Chamberlain Group, Inc. ("Seller") warrants to you call. If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call our Service number for a period of five years...