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LiftMaster 3800 Support Question

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Question posted by susannroyle on March 29th, 2012

My Lift Master 3800 Pld Has Had Problems Opening And Closing. Wires Were Tighte

Now the GFI has tripped. What causes this. I have been told the circuit board/ chip to operate often blows in an electrical storm. The GFI is very high to reset and not a safe climb.

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Related LiftMaster 3800 Manual Pages

3800 Manual - Page 1

... 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 operation. ■ The model number label is located behind the hinged...

3800 Manual - Page 2

... 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 if you do not comply with the warnings that accompany it...

3800 Manual - Page 4

... BEFORE installing and operating garage door WARNING opener to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of door. WARNING To prevent possible SERIOUS INJURY or DEATH: CAUTION • ALWAYS call for hand tools as shown. Stepladder 12 Drill Tape Measure 5/32", 3/16", 5/16" and 3/4" Drill Bits Pencil Pliers Wire Cutters Claw...

3800 Manual - Page 5

... 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 White & White/Red Power Door Lock 2-Conductor White & White/Black Bell Wire with Connector Cable Tension...

3800 Manual - Page 7

... of 5 feet (1.5 m). • away from torsion bar and remove the opener. Place entrapment warning label on properly balanced and lubricated garage door. INSTALLATION STEP 1 Position the Opener 1. Close the garage door completely. 2. Reinstall the opener by a trained door systems technician BEFORE installing opener. 4. Motor unit Staple Torsion Bar 7 Drill 3/16" pilot holes at...

3800 Manual - Page 8

... handle to cut the rope, heat seal the cut end with an overhand knot. NOTE: If it is fully closed. 1. Run bell wire up from being manually opened once the door is necessary to disengage door ONLY when garage door is no higher than 6' (1.83 m) above . Secure with an overhand knot at least 1" (2.5 cm) from a CAUTION falling...

3800 Manual - Page 9

...Door Closed Preferred Orientation Figure 2 Wall Drum Cable 3/4" Min. (18 mm Min.) Figure 3 WHT/GRN WHT/GRN Cable Tension Monitor 7/16" (11mm) Strip wire 7/16" (11mm) To release wire, push in several places. 6. INSTALLATION STEP 4 Attach the Cable Tension Monitor (Required) This opener... cable. 5. NOTE: Cable must be installed on the same side of garage door during normal operation.

3800 Manual - Page 10

...; Replace cover by color: white wire to the W (2) and white/red wire to the R (1) (Figure 2). 2. For pre-wired installations (as the secondary control console. 1. Strip 7/16" (11 mm) of insulation from one 398LM can be connected to each garage door opener. To prevent possible SERIOUS INJURY or DEATH from a closing garage door. WARNING WARNING INSTALCLATUITOINOSNTEP 5 Install the...

3800 Manual - Page 12

... sure power is grounded. Be sure the opener is not connected to the opener, and disconnect power to circuit BEFORE removing cover to establish permanent wiring connection. • 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 contact with moving...

3800 Manual - Page 14

... garage door opener CAUTION BEFORE installing the safety reversing sensor. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the safety reversing sensor will detect an obstacle in masonry if repositioning is necessary. The units must be installed inside the garage 14 Safety Reversing Sensor 6" (15 cm) max. If it is closing garage door...

3800 Manual - Page 16

...closing, the door will glow regardless of insulation from both the sending and receiving eyes will blink 10 times. (If bulbs are correct. Figure 6 To CableTension Monitor Bell Wire Motor unit Bell Wire To Power Door Lock Connect Wire to the opener...Electric power to grey (Figure 6). Use insulated staples to secure wire to brackets, with lenses pointing toward each other across the door...

3800 Manual - Page 17

... the door. 5. Follow the steps below to Adjustment Steps 2, Setting the Force. WARNING Without a properly installed safety reversal system, persons CAUTION (particularly small children) could be sure fully open ) and purple moves the door DOWN (close ) positions, proceed to set the limits. Door MUST reverse on contact with proper operation of the motor unit will cause premature...

3800 Manual - Page 18

... DOWN, in order for the force to open and close the door. 1. The unit has learned the forces required to be SERIOUSLY INJURED or KILLED by a closing garage door. • NEVER learn forces or limits when door is located on garage door will flash quickly. 3. Door MUST reverse on contact with proper operation of force required to enter unit into Force...

3800 Manual - Page 19

... the door reverses on the floor, centered under the garage door. • Operate the door in the path of the opener. Safety Reversing Sensor Safety Reversing Sensor 19 If the opener closes the door when the... INJURED or KILLED by a closing garage door. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on the floor. 1-1/2" (3.8 cm) board (or a 2x4 laid flat...

3800 Manual - Page 20

... released by sliding the manual release handle to disengage door ONLY when garage door is CLOSED. ADJUSTMENT STEP 7 To Open the Door Manually Disengage door lock before the door begins to move. • Operate the door in an open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle to the open direction. Test the emergency release: • Make sure the...

3800 Manual - Page 21

... opening , the door will open , the door will close the door with your opener with each use . ONLY activate garage door when it can close . See Programming. If fully open position, it is properly adjusted and there are no effect in a partially open , the door will not close when the beam is complete. NEVER permit children to operate or play with 1-1/2" (3.8 cm) high...

3800 Manual - Page 23

... have electric power? HAVING A PROBLEM? (TROUBLESHOOTING) 1. If it replaced. 2. Have it doesn't light, check the fuse box or the circuit breaker. (Some outlets are prohibited, except for changing the code setting or replacing the battery. CARE OF YOUR OPENER MAINTENANCE SCHEDULE Once a Month • Manually operate door. The lithium battery should produce power for a faulty wire...

3800 Manual - Page 24

.... Having a Problem? (Continued) 5. Remove any ice or snow from the remote only. The garage door opens and closes by its springs. If it out of the mounting bracket. 15. If not, move the position of balance, or are off. • Remove the bell wire from the door control terminals and operate from the garage floor area where the door closes. •...

3800 Manual - Page 25

...If motor unit activates, replace door control wires. the motor unit does not operate or trolley is programmed with jumper wire. Installed Safety Reversing Sensor Your garage door opener is stuck on door control. • Inspect door control/wires for a short (staple in wire), replace as needed . • Disconnect wires at door control, touch wires together. Symptom: One or both...

3800 Manual - Page 31

... feature and auxiliary button. LOCK LIGHT 915LM CLOSED OPEN Garage Door Monitor: Security for homes with Security✚®: Includes visor clip. Remote Work Light: Enables homeowner to the model 3800 and 3500 garage door openers. Combine up to precisely park vehicles in their garage door opener remote or from home and turn opener lights on a specially designed keyboard. Includes...