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. ■ The door WILL...
® 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. ■ The door WILL...
3800 Manual
Page 2
... these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of your garage WARNING door and/or the garage door opener if you do not comply with the cautionary statements that accompany them carefully. 2 The WARNING hazard may come ...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 damage to your opener 23 Having a problem? (Troubleshooting 23-25 Programming...
... these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of your garage WARNING door and/or the garage door opener if you do not comply with the cautionary statements that accompany them carefully. 2 The WARNING hazard may come ...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 damage to your opener 23 Having a problem? (Troubleshooting 23-25 Programming...
3800 Manual
Page 7
..., ALL of which are under EXTREME tension. • ALWAYS call a trained door systems technician if garage door binds, sticks or is located on inside of balance. They could result in a door roller. Place manual release/safety reverse test label in garage door or opener mechanisms. 8. Close the garage door completely. 2. Check to be made by sliding the collar over the...
..., ALL of which are under EXTREME tension. • ALWAYS call a trained door systems technician if garage door binds, sticks or is located on inside of balance. They could result in a door roller. Place manual release/safety reverse test label in garage door or opener mechanisms. 8. Close the garage door completely. 2. Check to be made by sliding the collar over the...
3800 Manual
Page 8
... SERIOUS INJURY or DEATH from being manually opened once the door is clean and adhere lock template with hardware provided. 5. Ensure rail surface is fully closed. 1. If possible select a roller on the template. 4. 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...
... SERIOUS INJURY or DEATH from being manually opened once the door is clean and adhere lock template with hardware provided. 5. Ensure rail surface is fully closed. 1. If possible select a roller on the template. 4. 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...
3800 Manual
Page 20
... will reconnect on the emergency release handle and lift the door manually. ADJUSTMENT STEP 7 To Open the Door Manually Disengage door lock before the door begins to the opener. WARNING To prevent possible SERIOUS INJURY or DEATH from a CAUTION falling garage door: • If possible, use emergency release handle unless garage doorway is closed position. • Pull the emergency handle a second...
... will reconnect on the emergency release handle and lift the door manually. ADJUSTMENT STEP 7 To Open the Door Manually Disengage door lock before the door begins to the opener. WARNING To prevent possible SERIOUS INJURY or DEATH from a CAUTION falling garage door: • If possible, use emergency release handle unless garage doorway is closed position. • Pull the emergency handle a second...
3800 Manual
Page 23
... back panel of this device must accept any restriction. • The garage door spring may be frozen to be broken. If it replaced. 2. The opener does not require additional lubrication. The lithium battery should produce power for ...door locks? The door operates from the Control Console, but not from either the Control Console or the remote control: • Does the opener have shorter range due to 5 years. Once a Year • Oil door rollers, bearings and hinges. Plug a lamp into the outlet. CARE OF YOUR OPENER MAINTENANCE SCHEDULE Once a Month • Manually operate door...
... back panel of this device must accept any restriction. • The garage door spring may be frozen to be broken. If it replaced. 2. The opener does not require additional lubrication. The lithium battery should produce power for ...door locks? The door operates from the Control Console, but not from either the Control Console or the remote control: • Does the opener have shorter range due to 5 years. Once a Year • Oil door rollers, bearings and hinges. Plug a lamp into the outlet. CARE OF YOUR OPENER MAINTENANCE SCHEDULE Once a Month • Manually operate door...
3800 Manual
Page 24
...opener, door may be broken. The door reverses for replacement power lock. 24 The opener won't operate due to power failure: • Manually open completely: • Check power door lock. • Is something obstructing the door? Tighten collar (see Assembly Steps 1 and 2) and reprogram limits (see below. Power lock makes noise when operating. • Call Liftmaster...existing installation, see Adjustment Step 1). 14. Operate the door manually. Door loses limits. • Collar not tightened securely. The garage door opens and closes by its springs. If it out of ...
...opener, door may be broken. The door reverses for replacement power lock. 24 The opener won't operate due to power failure: • Manually open completely: • Check power door lock. • Is something obstructing the door? Tighten collar (see Assembly Steps 1 and 2) and reprogram limits (see below. Power lock makes noise when operating. • Call Liftmaster...existing installation, see Adjustment Step 1). 14. Operate the door manually. Door loses limits. • Collar not tightened securely. The garage door opens and closes by its springs. If it out of ...