ticking from the fuse box

Since coming back from the garage Ollie has a strange fast ticking from his fuse box when the ignition is on ( no it is not the indicators on etc) it ticks whilst in motion or when static as long as the engine is ............he never did this before, can someone advise if this normal if so why, or if it is not ......why ?

 

Thank you and please

 

Relay or flasher unit playing up?
Give them a bit of a tap and see if it stops.

 

It's a bomb

 

Perhaps the mechanics Rolex got stuck behind the fuse box, when he worked on it.

 

If its more of a clicking then probably a faulty relay as above. If more of a ticking noise it could be a loose wire.

 

Think I'd be inclined to pull the relays just to check for damp. Water leaking down from the windscreen seal providing a ground path.