20
GDO-8 Shed Master®
Owner Installation Instructions
Deleting Transmitters
11. Deleting programmed codes
11.1 Deleting a stored transmitter code
1. Select the transmitter you want to delete.
2. Press and hold the Door Code button
(Fig. 18).
3. Press the transmitter button you would like to delete
for two seconds. Pause for two seconds. Press the
transmitter button again for two seconds.
4. Release the Door Code button. The code should now
be deleted. Confi rm this by pressing the transmitter
button. The door should not respond.
11.2 Deleting all stored transmitter codes
1. Turn the power off to the opener.
2. Press and hold the Door Code button
(Fig. 18).
3. Turn the power on again while holding the Door
Code button. The Open Limit, Close Limit and Door
Status LED’s will illuminate for about fi ve seconds.
These LED’s will turn Off and the Coding LED will
illuminate. Release the Door Code button. All the
stored codes should now be deleted. Confi rm
this by trying to operate the door by pressing the
transmitters previously used to control the door. The
door should not respond.
12. Locking the control panel
To lock or disable the control panel, a transmitter button
must be coded to operate the door.
1. Press and hold coded button of transmitter to
operate the door and Plus (+) button on the opener
together until you hear a beep (approx. four (4)
seconds).
2. Release both buttons.
3. The control panel should now be locked. Press the
Operate button on the opener to confi rm the door
does not move.
To unlock the control panel repeat the above steps.
Press and hold
Door Code button
buttons you wish to
detete
press and hold Plus
(+) button on the
opener and pre coded
OSC button on the
transmitter
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fi g
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