Clifford Garage Door Receiver ACG Owners Guide - Page 3

Detuning the electric garage door's existingreceiver Skip this sectionifyourgarage door openerhas an externalreceiver or ifyour garage door opener never had a remote control. The garage door opener's original receiver must be disconnected or "detuned" to make it impervious to "scanners." (Burglars use scanners to rapidly transmit one garage door remote control code after another, often activating the garage door opener in a matter of seconds. Unless you detune the existing receiver, your garage door opener will still retain the original remote control code and will open the door when a scanner transmits that code.) To detune a garage door receiver, perform the following: 1. Unplug the garage door opener's power cord. 2. There are two types of receivers: external and built-in. If your opener uses an external receiver, you should have already disconnected its terminals as part of the installation procedure (page 1, step 2). 3. If your garage door opener does not have an external receiver, you must detune its built-in receiver. Near the garage door opener's antenna wire, you will find its tuning device(s). You may need to remove the opener's outer housing in order to access the circuit board. 4. Most receivers use "tuning slugs."It may he necessary to poke through a decal in order to gain access to the tuning slug holes (as illustrated in diagram 2). • On some openers; the tuning slugs may be located on the exposed printed circuit board (diagram 3). • Use the supplied tool to turn the inner core counterclockwise until it can be removed (diagram 4). • lithe receiver uses a "tuning capacitot;" use a screwdriver to turn the screw 1/4-turn in either direction (diagram 5). • On a Genie "Genius" type opener, peel back the label on the circuit board and rotate the screw a quarter-turn in either direction (diagram 6). 5. Reconnect power to the garage door opener and activate the original remote control. The opener should NOT respond. Repeat steps 1-5 for garage door/gate openers #2 and #3, if applicable. 3