RED LED
LEARN BUTTON
Lights Flash
RED LED
Flash
DESCRIPTION:
The MMT103 Code Safe digital transmitter is a wireless radio control designed for use with Mighty Mule
garage door openers and can also be programmed to your Mighty Mule gate openers. One remote for
two or three devices.
Each of the three transmitter buttons will send a unique code when pressed. All buttons can be used to
activate an individual Mighty Mule garage door opener, multiple Mighty Mule garage door openers or
Mighty Mule garage door opener(s) and gate opener(s).
MMT103
3-BUTTON REMOTE TRANSMITTER
Instructions
PROGRAMMING:
Press the operator’s LEARN button until the
operator’s red LED flashes once and the light turns
on. A remote must be added while the light is still on
(15 seconds).
Send a signal from the desired button on the remote.
The operator’s light and the red LED will flash once if
the remote was added.
Repeat to program additional buttons for other garage
door openers.
After programming, test the transmitter from various
locations. Be sure the door or gate areas are clear.
Activate the transmitter and verify that the receiver
triggers the opener(s).
®
PRINTER’S INSTRUCTIONS:
INSTR, INSTL, MMT103 - GTO P/N: 10015841 A - INK: BLACK - MATERIAL: 20# MEAD BOND - SIZE: 8.500” x 5.500” - SCALE: 1-1
PROGRAMMING THE REMOTE TO THE GARAGE DOOR OPENER
DELETING A REMOTE FROM THE GARAGE DOOR OPENER
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If you have a Mighty Mule gate opener, you can program one of the buttons to
open the gate also.
Press and hold button 1 and button 3 at the same time for 5 seconds. The LED
will turn on, then release the buttons.
Press and release the button that you want to learn the gate opener code to.
Hold the gate opener transmitter with the front/top facing the side of the
MMT103. Press the button on the gate opener transmitter and the LED on the
MMT103 will blink twice when it has successfully learned the code.
The button you programmed will now transmit the gate opener code as indicated
by the LED being solid on when the button is pressed.
PROGRAMMING/LEARNING A GATE OPENER TRANSMITTER
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®
Button #1
LED
Button #3
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®
Press and release the button you
want to learn the gate operator code
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®
Press and hold the gate operator transmitter button
until the LED on the MMT103 blinks twice
®
LED
3
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3
DELETING A DIP SWITCH CODE
Press and hold button 1 and button 3 at the same time for about 5
seconds. The LED will turn on, then release the buttons.
Press and hold the button you want to delete a code from for 5 seconds,
then the LED will blink twice indicating the DIP switch code was
successfully removed.
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2
2
®
Press and hold the button you want
to delete a code from for five seconds.
®
Button #1
LED
Button #3
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Printed in China for GTO Access Systems, LLC.
Copyright
©
2017 GTO Access Systems, LLC
Document Number: 10015841 REV A
MIGHTY MULE LIMITED WARRANTY
This product is warranted to the consumer against defects in material and workmanship for one year from the date of purchase. This warranty applies
to first retail buyers of new devices. Mighty Mule will repair, or at its option, replace, any device it finds that requires service under this warranty, and
will return the repaired or replaced device to the consumer at the Might Mule’s cost. For warranty service and shipping instructions contact Mighty
Mule Tech Service. Devices must be sent to Mighty Mule for service at owner’s expense. The remedies provided by this warranty are exclusive.
Implied warranties under state law are to the one year period of this written warranty. Some states do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you. In order to be protected by this warranty, save your proof of purchase and send copy with
equipment should repair be required. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
All products returned for warranty service require a Return Product Authorization Number (RPA#). Contact Mighty Mule Technical Services at 1-800-
543-1236 for an RPA# and other important details.
When the red light on the transmitter glows dimly, or fails to light at
all when the transmitter is activated, the batteries need replacing.
Twist a coin, visor clip or screw drive in slot to open case.
Lift off top of case.
Carefully remove the circuit board.
Remove old battery and properly dispose them.
Replace battery with new Type 2032 battery – PLUS SIDE UP.
Re-assemble the transmitter.
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Mighty Mule® is the retail brand of GTO Access Systems, LLC
3121 Hartsfield Road • Tallahassee, FL 32303
Mighty Mule Sales: 800-543-4283 • Fax 850-575-8912
Mighty Mule Technical Service 800-453-1236
For more information on Mighty Mule’s full line of Garage Door Openers, Gate Openers, Accessories and
Access Controls, visit www.mightymule.com
KEEP BATTERIES OUT REACH OF CHILDREN. Swallowing batteries can lead to serious injury or death. If you suspect
someone has swallowed a battery, go to the hospital immediately. Do not induce vomiting or eat or drink anything.
For more information, call the National Battery Ingestion Hotline: 202-625-3333.
The battery identification number for this product is CR2032.
WARNING
REPLACING TRANSMITTER’S BATTERY
WARNING:
Changes, modifications or adjustments not expressly approved by GTO Access Systems, LLC could void the user’s authority to operate
this equipment. There Are No User Serviceable Parts.
NOTICE:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This device complies with Industry Canada License-exempt RSS standard. Operation is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
If a remote is already programmed to the opener and you want to delete it, follow the same procedure as PROGRAMMING THE REMOTE
above. The opener will recognize the remote and delete it from memory. The RED LED and LIGHT will blink 4 times to show the REMOTE was
successfully deleted.
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