Hello Folks!

My wife bought me a sidekick for Christmas and I've used it a few times, but there is a loud whistling noise when I first turn it on. I've twisted the hose, straightened it, taken it off, moved the clamp around to uncover the air hole, and moved the clamp to cover the air hole. Not sure what is causing it and it lasts for a minute or so. Has anyone else experienced this? I tried googling it and searching on this forum, but I didnt find anything on this subject. Any fixes out there to stop this from happening?

Thank you in advance!!

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