not opening

[easygates]

Can be relay.
Try to swap motor outputs on the control panel and check if other motor (which now is fine) will be doing the same - what motors and controller you have got there?
I had similar situation with new install. Engineers called from site and told this is happening. I found lose wire in junction box (motors P7.5)

Try changing capacitors over to see if that narrows down the fault to a capacitor first of all as that seems quite likely.

i also agree with swapping the motors over on the control board, so motor one is connected to motor 2 and visa versa. if the other gate has the same problem then you will need a new control board as the relay is probably sticking. you could try hitting the relays with the plastic end of a screwdriver for a tempory fix.

if all of these fail, you may need a new motor.

Regards