Having A Problem - Craftsman 139.53678SRT Owner's Manual

1/2 hp
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Situation
Having a Problem?
Probable Cause and Solution
The opener doesnl
operate from either
the Door Control or
the remote control:
Opener operates
from the remote
control, but not from
the Door Control:
1. Does the opener have electric power? Rug a lamp into the outleL If itdoesn't light,
check the fuse box or the circuitbreaker. (Some outlets are controlledby a door switch.)
2. Have you disabled all door locks? Review installation instructionwamings on Page 11.
3. Is there a build-up of ice or snow under the door? The door may be frozen to the
ground. Remove any restriction.
4. The garage door spring may be broken. Have it replaced.
5. Repeated operation may have tripped the ovedoad protector in the motor. Wait
15 minutes. Try again.
1. Is the Door Control lit?.If not, remove the bell wire from the opener terminal screws.
Short the red and white terminals by touching both terminals at the same time with a
piece of wire. If the ohener runs, check for a faulty wire connection at the Door
Control, a short under the staples, or a broken wire.
2. Are the wiring connections correct? Review Step 6, page 18.
The door oporstee
from the Door
Contro/, but not from
the remote control:
1. If your model has the Lock feature, make sure the look is Off.
2. Is any door push button flashing? Your opener needs to re-leam a remote control
code. Refer to Instrucbons on the opener panel.
3. Program the receiver to match the remote control code.
4. Repeat the receiver programming procedure with all remote controls.
The remote control
has short range:
1. Change the location of the remote control in your car.
2. Check to be sure the antenna on the side or back panel of opener extends fully
downward.
3. Some installations may have shorter range due to a metal door, foil becked
insulation, or metal garage siding.
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 4tA3263 can be installed. This kit was designed to
minimize vibration to the house and is easy to install.
The garage door
opens and closes
by Itself:
1. Be sure that all remote control push buttons are off.
2. Remove the bell wire from the Door Control terminals and operate from the remote
control 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 opener.
3. Clear memory and reprogram all remote controls.
The door dnean I
open completely:
1. If the door has'been working properly but now doesn't open all the way, increase the
up force. See page 29.
2. Is something obstructing the door? Remove the obstruction or repair the door.
3. If door opens at least 5 feet, the travel limits may need to be increased. One turn
equals 2 inches of travel. Sea page 28.
Repeat the selety reverse test after the adjustment Is complete.
The door stops but
doeen l close
completely:
Review the travel limits adjustment procedures on page 28.
Repeat the safety reverse teat after any adjustment
of door arm length, close
force or down limit.
34

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