47-55.1 Universal Turn Signal

[1project2many]

Most three terminal flashers are connected to power on one terminal, load on the second, and the indicator bulb on the third. If the load and indicator terminals are swapped the flasher will behave as you are describing.

And of course, there are multiple configurations for three terminal flashers. Look for the letters X, L, and P on yours. X is the battery connection, L is the load (turn signal bulbs) and P is the indicator lamp or pilot. If your flasher has different letters there's a good chance it's not the correct flasher.

If you are using LED lights be sure you have an electronic flasher. LED lights typically do not draw enough current to make an electromechanical flasher work.

[Nima]

When I unplug the power from the X terminal, the center red light does not flash any more.
This is the unit;