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Old 09-13-2017, 09:41 AM   #1
Join Date: Nov 2016
Location: Chicago area
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Maxx Air vents

I installed 4 Maxx Air vents over the 4 vents on my Coachmen Class C according to their directions. Unfortunately they seem to make wind/rattling noise when traveling at anything over 40mph, especially the one directly over my head. Any solutions?

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Old 09-14-2017, 08:58 AM   #2
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This may sound like a dumb question but did you place the outlet of the maxim facing to the rear? I would also check to ensure all the hardware is tight and that with the original vent lid open it is not hitting the Maxair cover.

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Old 09-14-2017, 04:43 PM   #3
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thanks for your reply seadog, check on all those things. The cover is installed correctly and tightly, I think it's just the nature of the beast
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Old 09-14-2017, 05:16 PM   #4
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Just to be certain....
Are you hearing the rattling noise even with the original vents closed?

Another question...
How can you have a vent directly over your head in a Class C? I thought you have the roof of the vehicle over top of you with a small space in between before the house part has its roof over top of that. Like....are you based on a Ford E350 or E450 chassis?

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Old 09-14-2017, 05:41 PM   #5
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Try running your manual vents ALL THE WAY to the top, so they can't move.
That may fix your rattle problem. My guess is the actual vent covers have a little play in them.
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Old 09-14-2017, 10:21 PM   #6
Join Date: Nov 2016
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thanks for replies, yes there is a vent right over the middle of the upper bunk, over my head. I know it's not the original vents as the noise didn't start until I installed the MaxxAir II, but I like the idea of opening the manual vent until it puts pressure on the maxxair to hold it still, thanks

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