32
MAINTENANCE & TROUBLESHOOTING
CAUTION
Door starts for no reason.
Check staples on wire from power head to wall control. If they cut into insulation, they can 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.
Wall control button sticking. Check operation of buttons.
Door starts down, then
stops before it’s closed.
Check CLOSE limit switch setting (See Section 7)
Check for shorted wires
Door starts down, then
stops and goes back up.
Check force adjustment (See Section 7).
Check CONTACT REVERSE (See Section 7).
Check for light beam obstruction or misalignment of Safe-T-Beam
®
(See Section 3).
Check STB self-diagnostic code.
Door will only run closed.
Check OPEN limit switch for short and proper wiring.
Check force adjustment (See section 7).
Check for broken door spring.
Door will only run open.
Check Safe-T-Beam
®
System (See section 3).
Check CLOSE limit switch for short and proper wiring.
Check force adjustment (See Section 7).
Remote control has
less than 25 feet
operating range.
Relocate remote control inside car.
Point remote control at door.
Replace battery.
Do Not attempt to retune remote controls.
Door starts up, but
stops before it’s
completely open.
Be sure door is in good repair, properly lubricated and balanced.
Check OPEN limit switch setting (See section 7).
Check force adjustment (See section7).
Check for broken door spring.
Operator runs, but door
does not move.
Make sure carriage is engaged.
Check force adjustment (See Section 7).
Operator works from wall
control, but not from
remote control.
Program remote control code into receiver memory (See section 9).
If one remote control works and another does not, check battery, remote control type (Series II ) and
frequency of non-working unit (See section 9).
Noisy operation.
Be sure all fasteners are tight.
Be sure door is in good repair, properly lubricated and balanced (See Monthly Maintenance section).
STB System malfunction.
Use self-diagnostic STB System troubleshooting information to maintain safe operation
(See section 3).
Use this guide to correct problems with your door
operator. If these solutions do not work, call
Customer Service.
Use only with included SERIES II wall control
Use of any other wall control can cause the door
to operate unexpectedly and the light not to work.
PROBLEM
SOLUTIONS
Operator does not run
from wall control.
Check lock switch on wall console (See section 4).
Check the 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.
• If power is OK:
- Check connections at power head terminals.
- Check connections at wall control.
- Motor protector may be open. Wait about 20 minutes for protector to reset.
Lights will not go out.
Check wiring.
Disconnect & reconnect wires on wall control.
Non-compatible wall control.
