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Diagnosing EN 06 code on APeX controller

EN codes are the APeX controllers primary way of signaling an entrapment condition with the system. These codes range from EN 00, to EN 14. We will discuss each of these codes, their meanings, and possible solutions in periodic blog posts. Comments and questions are welcomed and encouraged to help you understand the automatic gate system you are working on as thoroughly as possible.

The EN06 code is activated only on dual gate installations when there is an error on the other controller. If both controllers have an error other than the EN06, they will flash both sequentially: "ENxx" "EN06", this will repeat indefinitely until the problem(s) are taken care of. Any previous blog posts can be found here.


When an EN06 error occurs, a lockout condition is present due to a an error on the second controller from the APeX board. This error will lockout the system until the other controller is cleared and reset.

When triggered, this input will display "EN 06" on the APeX display, and will have the "LOCKOUT" LED lit preventing movement of the gate until both controllers are clear and can resume normal operation.

To reset this error code and return the automatic gate operator to normal operation, check the secondary controller for any "EN" codes, you can reference our manual here on page 31 for a list of EN codes, or check our blog here for previous posts that may cover your error.

Once the secondary operator has been cleared of any EN codes, press the "RESET" button on the bottom of the control box, or the "STOP" button next to the display on the APeX board; this should reset the error. You can now test run the slide gate system and check for normal operation.

If the problem persists after checking these devices and wiring, contact your installing dealer, distributor, or Rotary Gate Systems for further troubleshooting or replacement parts.

All error codes, and diagnostics can now be managed remotely with the Rotary IQ. This system is designed to work with all gate operators using the Linear APeX circuit board from 2008 to present and allows installing dealers a look at what is happening with a gate opener before making a trip on site, saving time and money.

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