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13
COMMON FAULTS & SOLUTIONS
Nature of Fault
Possible Cause
Solutions
Operator not functioning.
LCD screen is dim.
1. No power supply.
2. Plug wire is loose.
1. Check that mains voltage is present.
2. Check the fuse.
3. Check the low-voltage wires from the
transformer to the control board.
4. Check that the ribbon cable is plugged
into the board.
5. If 26V AC is present on the transformer
low-voltage side, replace the control
board. If not, replace the transformer.
Loss of Limit settings
System error
Reset the limits. (See
PROGRAMMING
OPEN AND CLOSE LIMITS
.)
While learning, is
displayed.
Travel is less than 30cm or more
than 9m.
Reset the limits. (See
PROGRAMMING
OPEN AND CLOSE LIMITS
.
)
is displayed, and the
operator does not work or
stops working.
Insufficient voltage.
Check the power supply.
or is displayed.
Unbalanced springing of the door. Adjust the spring system of the door to
achieve balance.
The operator is not working
and is displayed
Open and close limits failed to
learn, or improperly learnt.
Reset the limits. (See
PROGRAMMING
OPEN AND CLOSE LIMITS
.)
Curtesy LEDs are always on.
Either the control board or the
power supply board is faulty.
Replace the control board or power board.
After starting the door, the
operator stops automatically
after running 10cm, and
is displayed.
Hall sensor wire is loose or
damaged.
Open the cover, check the hall sensor wire,
and re-plug or replace.
Operator does not work. The
relay is heard to ‘click’, and
is displayed
The wires between the gear
motor and the control board may
be loose.
Open the cover and check the wires
between the gear motor and the board.
Operator stops automatically
after running 10cm, nothing is
displayed.
The wires between the gear
motor and the board are plugged
in inversely.
First power off. Open the cover and
reverse the plug on the wires between the
gear motor and the board. Reset the limits.
(See
PROGRAMMING OPEN AND CLOSE
LIMITS.
)
The door opens, but will not
close and is displayed.
1. If no Safety Beam device is
installed:
2. If a Safety Beam device is
installed:
1. Disable the Safety Beam function if no
safety beam device is connected.
(See
PROGRAMMING INSTRUCTIONS:
SAFETY BEAM
.)
2. The Safety Beam may be faulty,
incorrectly connected, misaligned or
obstructed by some object.
After being open for some
time, the door closes by itself.
The courtesy LED lights flash
4 times.
Automatic closing function is
selected
Disable the Auto Close function or, if
required, set a more suitable delay.
NOTE:
It is highly recommended that a Safety
Beam device is fitted if Auto Close is
selected.
(See
PROGRAMMING INSTRUCTIONS:
AUTOMATIC CLOSING.
)
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