Hydor Koralia 1400/1500 CLICKING NOISE

[mqur1963]

Any one know the fix or repair my old 1400 were fine i replaced my 2 evaluation 1400 with new 1500 they are clicking bad

 

[edd]

i read that its normal for koralias to click when on a controller, when they turn on.

 

[mqur1963]

thanks