20
AM800, AM808 & AM888
Dominator Instruction Manual
7.4. Troubleshooting
Symptom
Possible cause
Remedy
The opener does not work
from the transmitter
Garage door in poor condition e.g. springs
may be broken
The opener does not have power
The battery in the transmitter is flat
Transmitter does not contain
TrioCode
TM
128 Technology
The opener has been put into “Vacation
Mode”
The transmitter button is not programmed to
operate the door.
Door Code LED is flashing yet the opener is
not working.
Check the door’s operation
Plug a device of similar voltage (e.g. a hairdryer) into the power
point and check that it is OK
Replace the battery
Check that the transmitter has grey buttons and the model
number on the back displays V2. Contact dealer for support if
otherwise.
Turn off “Vacation Mode”
(Section 11.4)
Code in the transmitter
Ensure the correct button on the transmitter is being pressed.
One transmitter works but
the other/s do not
Faulty transmitter
Flat battery
Replace transmitter
Replace battery
The chain moves but the
door remains stationary
The opener is disengaged
Re-engage the opener
Motor is running but chain is
not moving
Damage motor assembly
Contact your dealer for support.
The transmitter range varies
or is restricted
Variations are normal depending on
conditions e.g. temperature or external
interference
The battery life is exhausted
Position of the transmitter in the motor
vehicle
Make sure you can see the door when you use the transmitter.
Check the battery status by pressing a button (flashing or no light
requires battery to be changed)
Aim the transmitter through the windscreen.
The Courtesy light does not
work
LED has failed
Change LED.
The door reverses for no
apparent reason
This may occur occasionally from
environmental conditions such as areas that
are windy, dusty or have extreme temperature
changes.
If Safety beams are installed they may be
partially obstructed.
Ensure the door runs smoothly before increasing the force
pressure.
Ensure the beam path is not obstructed. Check the Alignment.
Auto Close not working
Safety Beam or wiring faulty
Repair Safety Beam or replace wiring.
Re-align optics. See Safety Beam instructions.
The door stops or moves
very slowly under battery
(Optional Battery Back Up
Accessory)
The batteries may have little OR no charge
Connect mains power and leave the batteries to charge. The
batteries may take 24 to 48 hours to reach their maximum charge
capacity.
The SERVICE LED has
started to flash and is
beeping numerous times
A Fault has been detected. The fault will
be active each time an attempt is made to
operate the door.
Record opener function (How many beeps?) then press the SET
button once to reset the opener. If the fault continues to be
tripped contact your dealer for support.
The Open (Green) LED and
Close (Red) LED are flashing
alternatively
Opener is overloaded
Check the doors operation by disengaging the motor and
ensuring the door runs smoothly. If necessary make door
adjustments or contact your door professional.
