Cooling fan function

I have two of the speakers indicated one of which developed a fault on the cooling fan, I have since fitted a new unit but when I fire up it fails to start immediately unlike the second speaker.
Does the fan operate via a switch on the board as I can distinctly hear what sounds like an electronic click when if tries to start.
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  • Hi Stuart,

    Thanks for posting.

    The fan operates as needed to control the internal temperature of the amplifier. There are component tolerances which cause small variations from unit to unit. It is normal for a unit at room temperature to have the fan spin slowly, or not at all, or to stop and start. It is normal for this to vary slightly from unit to unit. It has no impact on the performance of the product.

    I'm afraid I don't have any information on the internal workings of the product. If you need to service your product, please contact our Technical Support team by logging on to www.altoproaudio.com/support.

    I hope this helps!
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  • Thank you for taking the time to reply to my concern, the thing that worries me most is that I have two of the units and when I fire up the second one the fan starts immediately and I can feel quite a surge of air when I put my hand near the aperture, which doesn't feel the same on the unit that has a new fan and when I listen closely there is a distinct click as if an electronic switch is controlling it's on/off cycle
    I certainly don't want to blow the output stage as I have been advised that this can be expensive to repair.
    Sorry to be over cautious but I would feel much safer if both units operated the same.

    Kind Regards,
    Stuart Moir
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  • If you're hearing a clicking sound from the speaker, you may want to contact our Technical Support team for more information. Please refer to my post above. 

    Thanks!
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