Having A Problem - Chamberlain 4142DC Manual Del Usuario

Having a Problem?

1. The opener doesn't operate from either the Door Control or
the remote control:
• Does the opener have electric power? Plug a lamp into the
outlet. If it doesn't light, check the fuse box or the circuit
breaker. (Some outlets are controlled by a wall switch.)
• Have you disabled all door locks? Review installation
instruction warnings on page 15.
• Is there a build-up of ice or snow under the door? The door
may be frozen to the ground. Remove any restriction.
• The garage door spring may be broken. Have it replaced.
• Repeated operation may have tripped the overload protector in
the motor. Wait 15 minutes and try again.
2. Opener operates from the remote, but not from the Door
Control:
• Is the door control lit? If not, reverse the wires. If the opener
runs, check for a faulty wire connection at the door control, a
short under the staples, or a broken wire.
• Are the wiring connections correct? Review Installation Step 6.
3. The door operates from the Door Control, but not from the
remote control:
• Is the door push bar flashing? If your model has the Lock
feature, make sure it is off.
• Program the opener to match the remote control code. (Refer
to instructions on the motor unit panel.) Repeat with all
remotes.
4. The remote control has short range:
• Change the location of the remote control in your car.
• Check to be sure the antenna on the side or back panel of
motor unit extends fully downward.
• Some installations may have shorter range due to a metal
door, foil backed insulation, or metal garage siding.
5. 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, the Vibration Isolator Kit 89LM
can be installed. This kit was designed to minimize vibration to
the house and is easy to install.
6. The garage door opens and closes by itself:
• Be sure that all remote control push buttons are off.
• Remove the bell wire from the door control terminals and
operate from the remote only. If this solves the problem, the
door control is faulty (replace), or there is an intermittent short
on the wire between the door control and the motor unit.
• Clear memory and re-program all remote controls.
7. The door doesn't open completely:
• Is something obstructing the door? Is it out of balance, or are
the springs broken? Remove the obstruction or repair the
door.
8. The door opens but won't close:
• If the opener lights blink, check the safety reversing sensor.
See Installation Step 10.
• If the opener lights don't blink and it is a new installation.
See Adjustment Step 2. For an existing installation, see
below.
Repeat the safety reverse test after the adjustment is complete.
9. The door reverses for no apparent reason and opener lights
don't blink:
• Is something obstructing the door? Pull the emergency
release handle. Operate the door manually. If it is unbalanced
or binding, call a trained door systems technician.
• Clear any ice or snow from the garage floor area where the
door closes.
• Review Adjustment Step 2.
Repeat safety reverse test after adjustments.
10. The door reverses for no apparent reason and opener lights
blink for 5 seconds after reversing:
• Check the safety reversing sensor. Remove any obstruction
or align the receiving eye. See Installation Step 10.
11. The opener lights don't turn on:
• Replace the light bulbs (100 watts maximum). Use a
standard neck garage door opener bulb if regular bulb burns
out.
12. The opener lights don't turn off:
• Is the Light feature on? Turn it off.
13. The opener strains to operate door:
• The door may be out of balance or the springs may be
broken. Close the door and use the emergency release
handle to disconnect the trolley. Open and close the door
manually. A properly balanced door will stay in any point of
travel while being supported entirely by its springs. If it does
not, disconnect the opener and call a trained door systems
technician.
14. The opener motor hums briefly, then won't work:
• The garage door springs may be broken. See above.
• If the problem occurs on the first operation of the opener,
door may be locked. Disable the door lock.
15. The opener won't operate due to power failure:
• Use the emergency release handle to disconnect the trolley.
The door can be opened and closed manually. When power is
restored, press the Door Control push bar and trolley will
automatically reconnect (unless trolley is in lockout position).
See page 28.
• The Outside Quick Release accessory (for use on garages
with no service door) disconnects the trolley from outside the
garage in case of power failure.
16. The chain droops or sags:
• It is normal for the chain to droop slightly in the closed door
position. Use the emergency release rope and handle to
disconnect the trolley. If the chain returns to the normal
height when the trolley is disengaged, and the door reverses
on a 38 mm obstruction, no adjustments are needed. See
page 15.
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