Chamberlain LiftMaster Professional 3780, Instructions Manual

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6-GB
HAVING A PROBLEM?
1. Opener doesn't operate from either door control or remote:
• Does the opener have electric power? Plug lamp into outlet. If it
doesn't light, check the fuse box or the circuit breaker. (Some
outlets are controlled by a wall switch.)
• Have you disengaged all door locks? Review installation instruction
warnings on page 1.
• Is there a build-up of ice or snow under door? The door may be
frozen to ground. Remove any obstruction.
• The garage door spring may be broken. Have it replaced.
• Repeated operation may have tripped the overload protector in the
motor. Wait 15 minutes. Try again.
2. Opener operates from remote but not from door control:
• Is door control button lit? If not, remove the bell wire from the
opener terminals. Short the red and white terminals by touching
both terminals at the same time with a piece of wire. If the opener
runs, check for a faulty wire connection at the door control, a short
under the staples, or a broken wire.
• Are wiring connections correct? Review page 3.
3. Door operates from door control but not from remote:
• Check battery. Replace battery if necessary.
• Is the light at the wall control flashing? Press button with key-symbol
to unlock the opener against remote controls.
• Is the receiver LED flashing at the back-side of the opener when the
transmitter is pressed? The opener receiver must re-learn the
remote control code. Follow the instructions on page 4.
• If you purchased a new remote control then check at carton of
remote control for compatibility or call the Service Hotline.
4. Remote has short range:
• Is battery installed? If needed, change the battery.
• Change the location of the remote control on the car.
• A metal garage door, foil-backed insulation or metal siding will
reduce the transmission range.
• Use outside coaxial antenna adapter to move antenna.
5. Door reverses for no apparent reason and opener light doesn't
blink:
• Is something obstructing the door? Pull manual release handle.
Operate door manually. If it is unbalanced or binding, call for
professional garage door service.
• Clear any ice or snow from garage floor area where garage
door closes.
• Review Force Settings. Open and close the door in learn mode for
several (3-5) consecutive cycles to allow the operator to adjust to
inconsistent doors.
• If door reverses in FULLY CLOSED position, re-learn travel limits.
Repeat safety reverse test after adjustment is complete.
The need for occasional adjustment of the force and limit settings is
normal. Weather conditions in particular can affect door travel.
6. Door reverses for no apparent reason and opener light blinks
for 5 seconds after reversing:
Check The Protector System™ (if you have installed this accessory).
If the light is blinking, correct alignment.
Note: Continuously holding down the door control button will allow
the door to close if the protector system is not properly aligned. The
transmitter will not close the door. The opener lights will blink.
7. Opener noise is disturbing in living quarters of home:
If operational noise is a problem because of proximity of the opener
to the living quarters, Vibration Isolator Kit 41A3263 can be installed.
This kit was designed to reduce the "sounding board effect" and is
easy to install.
8. The garage door opens and closes by itself:
• Delete all remote controls and reprogram.
• Make sure remote push button is not stuck "on".
• Disconnect all push buttons or key switches attached and wait one
day.
Replacement Parts
30 31
Special Features
A. Door within a door connection
Disconnect opener from power!
Remove cover. Locate auxiliary terminal block (TB1) on the
control board. Remove jumper from terminal leads 1 and 2 (not
shown). Replace with contact switch leads as shown.
B. Flashing light connection
The flashing light can be installed anywhere. Connect light leads
to terminals 3 and 4 on the terminal block.
C. Coaxial antenna adapter
A coaxial antenna connection can be used if the transmitter
range is too short. Cut off the existing antenna. Use standard
coax cable and connector. Strip off end of insulation to “X”
dimension.
433 MHz: X = 250mm. Reposition antenna.
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Accessories
(1) Model 94330E Single-Function Remote Control
(2) Model 4332E 2-Function Remote Control
(3) Model 94333E 3-Function Remote Control
(4) Model 94335E 3-Function Mini Remote Control
(5) Model 9747E Keyless Entry System
(6) Model 78LM Multi-Function Door Control Panel
(7) Model 760E Outside Keylock
(8) Model 1702E Outside Quick Release
(9) Model 770E The Protector System™
(10) Model 1703E The Chamberlain Arm™
(11) Model FLA230 Flashing Light Kit
(12) Model 16200LM Pedestrian Door Switch
(13) Model MDL100LM Mechanical Door Latch Kit
(14) Model EQL01 Door Handle Quick Release
(15) Model 100027 1-Position Key Switch (Flush Mount -
100010)
Model 100041 2-Position Key Switch (Flush Mount -
100034)
WIRING INSTRUCTIONS FOR ACCESSORIES
Keyless Entry System – To opener terminals: Red-1 and White-2
Outside Keylock – To opener terminals: Red-1 and White-2
Protector System™ – To opener terminals: White-2 and Black-3
Door Control Panel – To opener terminals: Red-1 and White-2
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114A2788C-GB