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Gallien Krueger MB115 not working?

HELLO, TODAY I GOT MY NEW GK mb115 combo amp, and it sounds very good, but I have 2 doubts .
The first one is. Why is the cooling fan not moving? does it only start cooling when the amp gets heated or is it faulty?

And the second one is. Why does the horn make so much noise? When i turn it on it starts making a very weird sound which makes it impossible to play.

And even like this I love the sound of the amp and the volume :p.

Thanks for the help. XD