Associated model number: GPT90-1 (12 switches & 390 frequency)

  1. Important Information
    • WARNING - Moving Door can cause serious injury or death
      • DO NOT install transmitter unless the door operator's safety reverse works as required by the door operator's manual
      • Wall control must be mounted in sight of door, at least 5 feet above floor and clear of moving door parts
      • Keep people clear of opening while door is moving
      • DO NOT allow children to play with the transmitter or door operator
    • If safety reverse does not work properly:
      • Close door then disconnect operator using the manual release handle
      • DO NOT use transmitter or door operator
      • Refer to Door and Door Operators Owner's Manuals before attempting any repairs
    • Electrical Shock can cause serious injury or death:
      • Power cord must be unplugged before attaching any wires
      • Be sure wire ends do not touch each other or other terminals
      • If you have questions or if you need a manual, contact the distributor or manufacturer of the operator
  2. Instructions for additional transmitters
    • Your garage door opener, transmitter, and this new transmitter must all be set to the same code to work.
    • Note:
      • If your opener has 9 code switches instead of 12 as shown this replacement transmitter will not work with your system.
    • Your code block with dip switches can be found where you see the antenna wire hanging from the motor head (you may have to take the lens cover off). If antenna wire is not hanging from motor head then you have an external receiver which is a black box approx. 6" x 2" mounted somewhere in the garage with a antenna wire hanging from it (pop off cover to find code block with dip switches).
  3. Frequency number
    • The frequency number is on a label on the back of your transmitter. This 3 digit number is also found on your opener power unit or separate receiver. If these numbers do not match, the new transmitter will not open the door.
  4. Setting the code on your new transmitter
    • Your new transmitter is shipped with all 12 code switches set "ON". Locate the code switches on your existing transmitter or on the operator. Your new transmitter must be set to the same switch pattern to work.
      • Remove battery cover
        • Press firmly below arrow and close cover off
      • Slide code switches to match setting on your existing transmitter or receiver
        • Use ballpoint pen or small screwdriver
        • Slide firmly up or down
        • NOTE: If your original unit includes "one time" punch out keys instead of switches, set the switches of the new transmitter to "off" position to match the keys that have been punched.
      • Replace remote control battery cover
        • Slide battery cover back in place over battery
        • Press firmly and slide forward to snap in place
  5. Lost or stolen transmitters
    • If your transmitter has been lost or stolen, it is recommended that you change the code setting on all transmitters and receivers for security.
  6. Transmitter operation
    • Press the button while the door is moving. Door will stop.
    • Point the transmitter at the garage door and press button. Door will open or close.
    • Press the button again. The door moves the other way.
    • Door automatically stops at the end of open or close cycle.
    • For maximum range, point remote control at door and press button.
  7. Visor / Clip attachment
    • Attach visor clip to remote control
      • Spread wire ends apart
      • Insert wire ends into holes in sides of remote control
      • Clip can be inserted up or down
    • Battery replacement (your remote control is battery powered)
      • Remove battery cover by pressing firmly below arrow and slide cover off
      • Install new battery in same position
      • Use Eveready 9V Classic No. 216

Contact Us

We invite your inquiries regarding your garage door opener.

  • For technical and compatibility issues, we must know the brand and model of your opener to help
  • Be sure to include your complete and accurate email address with your inquiry
Name A value is required.
Email Address (accurate) A value is required.Invalid format.
Phone No.
Brand of Opener
Model Number of Opener
(located on motor head behind light bulb cover)
Model Number of Remote Control
(located on back of remote)
Model/Part Number of Current Receiver
(located on Receiver)
Enter Security Code

Comments: - Owned by 1st Garage Door Openers, Inc., an independent family owned and operated business serving the Garage Door and Garage Door Opener Industry since 1981. Providing excellent customer service and assistance for over 25 years. We are a discount reseller of garage door opener remotes, repair parts, keyless entry and gate operator controls for your home, business, or gated community. We carry parts for the following garage door openers: Lift-Master, Chamberlain, Sears Craftsman, Access Master, Sears Best Craftsman, Sears Automatic Door Opener, Master Mechanic, Security +, Formula 1, Garage Master, Billion Code, LiftMaster Professional, Estate Series, Premium Series, Contractor Series, Power Driver, Whisper Drive, Genie, Alliance, Norelco, Blue-Max, Lift-A-Door, Pro Max, Hercules, Stealth, Excelerator, Intellicode, Genie Pro, OverDrive, Python 2, Signature, Phantom, Legacy, Medallion, CodeDodger, Overhead Door, Genie Shop Vac, Stanley, Vemco, Quiet Glide, SecureCode, Lightmaker, Innovative Products, Whistler, U-Install, Popular Mechanics, Allister, Allstar, Pulsar, MVP, Challenger, GTO, All-O-Matic, Electrolift, Westinghouse, AM/11, Linear, Access Pro, Moore-O-Matic, MegaCode, Delta 3, MultiCode, Heddolf, ESP Micom, Intercontinental Dynamics, Crusader, Wayne Dalton, iDrive, Door Master, Quantum, Classic Drive, Tec Key, Martec, Monarch, Telectron and other garage door openers, and gate operators. Brand names of Garage Door openers are registered trade names of the respective entities and are only used for reference.