"Dee D. Flint" wrote in message
gy.com...
[snip]
Note if you had a carbon buildup before, that indicated something else was
wrong with your system. Carbon occurs when something burns. Quite
possibly
your tuner has been arcing because something is off with the antenna and
has
always been off. Then when the carbon builds up, it won't work.

If you are using a properly cut 10m dipole on 10meters, you really
shouldn't
need the tuner at all unless you are at the extremes of the band. What is
your SWR reading when you don't use the tuner?

Dee D. Flint, N8UZE


Also burned on carbon deposits may not be removable with the simple spray
cleaners and if that problem has recurred you may indeed need to take it
back to the repair tech to have it removed.

Dee D. Flint, N8UZE