Thanks for the response. I'm not an electrical engineer but I am
kind of handy. This unit uses the common glass automotive type fuse
(glass 15 amp). What happens is it works fine for about 10-15 times
then blows/melts. When I pry the fuse out of it's melted carrier
the ends appear clean. It seems to me that some
component/connection is deteriorating with each use until it self
destructs. Question? If the metal clips that hold the fuse where
not a heavy enough gauge metal could they say, break down with each
Trying to diagnose a problem such as this on site can be problematic,
long distance it's impossible.
In answer to your question, the clips are probably heavy enough, but
if they heat up while the unit is on they could loose some of their
temper. Repeated heatings would cause them to loose more over time.
If you don't have any luck determining the cause of the problem
yourself, you might have some one experienced in working with
electrical appliances have a look at it.