On Thu, 14 Nov 2013 16:47:47 -0500, Ralph Mowery wrote:

It could be static electricity. Is the 4 foot long vent pipe seperated from
the dryer by some material that does not conduct electricity ?

I'm not sure HOW static electricity could build up, but, that's the only
thing, at the moment, that makes sense to me.

Here's a picture of what the vent hose looks like when it's all in place:
http://farm4.staticflickr.com/3815/1...c2fe362f_o.gif

Here's a front view:
http://farm4.staticflickr.com/3833/1...2c472367_o.gif