• Check power source.
– Plug a lamp into outlet used for
power head. If lamp works, power
source is OK.
– If not, check fuse or circuit breaker
or noncompatible GFCI
(We
recommend replacing
noncompatible GFCI receptacle).
(Any electrical work should be
conducted by a qualified person
who understands electrical circuitry.)
• Check ribbon connector between
boards (qualified service representative).
• If power is OK:
– Check connections at power
head terminals. Page19, Fig. 3-1.
– Check connections at wall control.
Page 19, Fig. 3-2.
– Check operator troubleshooting
chart on page 28.
• Check wires to ensure they are not
cut. Staples can cut insulation and
short wires. If wire is cut, replace it.
• Was a remote control lost or stolen?
Erase all remote control codes from
receiver memory and reprogram.
Page 27, step 4.
• Button stuck on wall control or remote.
• Check CLOSE limit switch setting.
Page 21.
• Wires shorted.
• Check door for binding.
• If new, check door arm position.
• Check CONTACT REVERSE.
• Check STB System for beam
obstruction or misalignment
of lenses.
• Check STB diagnostic code.
• Check “CLOSE FORCE” adjustment.
Page 22.
• Check door for binding.
• Check OPEN limit switch for short
and proper wiring.
• Check “OPEN FORCE” adjustment.
Page 22.
• Check door condition and
door spring.
• Check STB System (see STB
troubleshooting chart on page 28.)
• Check CLOSE limit switch for short
and proper wiring.
• Check “CLOSE FORCE” adjustment.
Page 22.
Use wall control supplied with operator. Any other
wall control can cause the operator to operate
unexpectedly and light not to work
Operator does
not run from
wall control.
Door will only
run open.
Door will only
run closed.
Door starts
down, then
stops and
goes back up.
Door starts
down, then
stops before
it’s closed.
Door operator
starts for no
reason.
Lights will
not go out.
• Disconnect and reconnect wires on
wall control. Page 19.
• Check wiring.
•
Incompatible wall control.
Disconnect and use remotes
for operation.
• Be sure door and operator are in
good repair, properly lubricated and
balanced (See Maintenance Section).
• Check “OPEN” limit sw. set. Page 21.
• Check “OPEN FORCE” set. Page 22.
• Check door condition and for broken
Door spring.
• Make sure carriage is engaged to
carriage slide.
– Check carriage lever engaged. Pg. 10.
• Check force adjustment. Page 22.
Door operator will NOT run more
than 30 seconds each way if door
does not move.
• Check condition and placement
of coupler. Page 8.
• Check screw is turning.
• Relocate remote control inside car.
• Point remote control at garage door.
• Replace battery.
• Reposition door operator antenna.
• DO NOT attempt to retune
remote controls.
• Program remote control code into
receiver memory. Page 23-26.
• Replace remote control Battery. Pg. 23.
• Check STB’s.
• Be sure all fasteners are tightened.
• Be sure door and operator are in
good repair, properly lubricated and
balanced (see Monthly Maintenance
Section).
If an operational problem exists, the
operator will not run closed. The
operator can be forced to close this
way –
• Disconnect the STB System from
the operator.
• Hold the wall control button down
until the door is completely closed.
Use self-diagnostic STB System
troubleshooting information to maintain
safe operation. Page 28.
• Carriage must be in contact with
“CLOSE” limit switch for vacation
lock to work.
Door starts
up, but
stops before
it’s
completely
open.
Operator
runs, but
door does
not move.
Remote
Control has
less than 25
feet
operating
range.
Operator
works from
Wall Control,
but not from
Remote
Control.
Noisy
operation.
Safe-T-Beam
®
System.
Vacation
Lock doesn’t
work.
CAUTION
TROUBLESHOOTING GUIDE
FOR HELP-1.800.929.3667 OR OVERHEADDOOR.COM
29
