Thanks Bob and Paul for replying.

I have the newer board without the LED.

The tech who has my board says there is an Omron LAB2 5v relay that lets the power through the logic board.

He tested it and the relay is not switching when it has voltage on it.

At the moment he is under the impression that the Reed relay is broken.

I am trying to find a replacement for this part but it does not exist anymore, has anyone ever found an alternative or know about this and if it makes sense.

Many thanks

Conor