Why is my mighty mule FM500 gate opener opening by itself?
Cathie,
Thank you for using GTO Products. If the gate opener appears to be opening by itself, then it's receiving an input from an accessory such as a transmitter, keypad, push button, exit wand, photo beam, loop detector, telephone entry system, etc.
By disconnecting these devices and reconnecting them back to the system one at a time, we can use a process of elimination to determine which device is causing the problem.
If you still need assistance, please call our tech support from the gate so we can help you troubleshoot. You can contact us at 800-543-1236 Monday - Friday from 8:00 AM to 6:50 PM EST
Technical Support
GTO Access Systems, LLC