Finally bled my brakes correctly but the light still flashes on the top of the tank level.
Anyone know how to reset the brake warning light?

Reset button on master cylinder if it does not have one try unpluging the wire at master cylinder and plug it back in then check parking brake switch.
William

I was just going to start a new thread when I saw this. Seems I'm not the only one having issues here!
I've just installed an ate 19mm master cylinder. However there doesn't seem to be a way to reset it. I've pulled off the little black rubber protection sleeve to reveal this. It seems to be one piece of white molded plastic, not a switch. Any ideas?

Pull the emergency brake and release it and clip your seat belts.
it is magic!

The middle of that white plastic piece is a button sticking out. Press the button.

And yes, make sure the hand-brake is released.

--DD

Well I guess it's pressed. It didn't seem much of a switch to me...

I still get a buzzing - relay rapidly clicking - when the handbrake is applied. This goes to the normal speed of clicking when indicators or hazzard flashers are in operation. Is this related to the new master cylinder? It is the only thing that's changed so I'm thinking there might be a connection.

The warning should be on when the handbrake is applied as well as when there is low pressure in the braking system.

Same indication for 2 different reasons. That's the way it's designed.