I thought it was going to be a straightforward fix but, in my typical fashion, I've screwed something up.
The power light isn't turning on.
The old switch assembly had a blue and brown wire tied to each side of the switch (they weren't soldered but were attached by tightening the screws.)

I bought a new switch rated for the same specs as the old one -- 15a 125 vac, 10a 250 vac -- with four lugs.

I took the blue top right wire from the old one and soldered it to the top right lug of the new switch. I then took the brown bottom right from the old switch and soldered it to the bottom right lug of the new switch.
I then did the same thing for the other side of the switch.

I though the lugs on the new switch would be the same as the old one.
When I turn on the new power switch, the power light doesn't light up.
Any ideas? Did I mix up the lugs?