How can I extend my dryer's exhaust vent away from my A.C. condensing unit using the existing outlet?
It currently looks like the picture below. I don't know if the vent going through the wall is connected with the cover on the outside or not.
Remove the vent cover, attach some rigid duct work, run along the house a few feet, put the vent cover on the end of the run. Make sure the end of the new run is lower than the exit point, so that moisture/condensation will never run inside.
BTW, make sure the ductwork inside is rigid. If it isn't replace that too.