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Old 03-24-2012, 09:13 AM   #1
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cover for airconditioner

The roof top cover for my air conditioner unit has four screws that hold it down. I was going to take it off and clean the unit up, but one of the screws just spins. I figure that the nuts must be spot welded onto the frame of the air conditioner and must have broken loose. The only thing I can figure out to fix the problem is to grind off the head of the screw, but that would be difficult to do since the screw is recessed into the cover itself. Any ideas? I would hate to have to have the unit serviced and have to pay a bunch for getting that screw out before they can work on it.

95 Winnebago Brave Sport. 27'
94 33' Fleetwood Wilderness
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Old 03-24-2012, 10:53 AM   #2
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Try using a thin chisel between the fastener head the shroud while backing out the screw...the outward tension on the nut plate may be just enough to stop the nut from turning and be able to remove the screw. Otherwise, you may just have to drill the screw head off. Bob

Jan and Bob

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Old 03-24-2012, 10:57 AM   #3
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Can you get a vice gripe or pliers on the head of the screw and pull out while you turn it?
Bob, Sandi & Marmaduke the Big Pug
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If towing: a 2006 Mini Cooper or 2015 RAM Limited 4X4
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Old 03-24-2012, 12:27 PM   #4
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I will try the chisel trick if there is enough room. I can't get a vice grip on it. If I try to drill it, the head will just spin.
95 Winnebago Brave Sport. 27'
94 33' Fleetwood Wilderness
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Old 03-24-2012, 01:54 PM   #5
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I was lucky that this didn't happen to me, but they sure can get tight. (rust) After I removed mine, I placed some silicone grease on the threads for easier removal next time.
History: '08 View, '05 Chinook, '01 Jamboree 24D, '78 Apache Popup, 81 Komfort Tlr,
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Old 03-25-2012, 04:59 AM   #6
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Take care doing it but "mutilate" the cover a bit around the guilty screw. It might not even have a nut behind it, just a self tapping screw. Put a large washer under a new screw head to cover your "modification" and you're done.
Doug and Cassi
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Old 03-25-2012, 10:07 PM   #7
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Try using a putty knife in lieu of the chisel or grind a cheapy screwdriver down with a nail puller type "V" in the center

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