If your gate opener will only perform one task successfully, either open or close, it may point to a faulty limit switch.  You can perform the limit switch jump test to determine if that's the case. 

Tools Needed:

  • Two lengths of 12 - 18 AWG wire
  • Small flat-head screwdriver
  • A way to send an open/close signal to the gate (remote, keypads, etc.)

You will need to identify which ports the non-opening arm is wired into. Once you have identified the ports, remove the BLUE, GREEN, and YELLOW wires for that opener. This removes the limit switches for that arm from the circuit board so that you can test the operation without them. 

Below I have attached a visual aid for your reference as well as this video: 


  • The two lengths of wire will act as jumper wires to short the three ports (ULT#, COM, DLT#) and should be connected as shown in the attachment.
  • Once the three ports have been jumped, restore power to the operator and attempt to 'OPEN' the gate.

WARNING - With the limit switches removed from the faulty arm, it will not stop automatically. You need to manually stop the gate by sending another signal to the opener with either a Push Button or Key Remote.

If you are not comfortable performing this test by yourself, please feel free to contact us and we will be glad to walk you through troubleshooting.

Test Results:

If the gate opens and closes with the limit switches removed from the control board, it is confirmed that the limit switches on the bad arm are faulty and need to be replaced. Email us at hello@alekoproducts.com advising you have completed this test and the limit switch is faulty and needs to be replaced.

If there is no change in the operation of the gate opener, then further troubleshooting is required. Call us at 833-926-2323 and our technical support team can help.