[commodor47]

John,

Try spraying the exposed threaded area with a good penetrating oil. then use the rounded end of a small ballpeen hammer to gently tap the end of the anode rode. The gentle tapping will help move the penetrating oil into the hidden threads. Let the oil set up for several hours, preferably overnight. You may have to repeat the process several times before the threads loosen up. You might also try tightening the rod a bit then try loosening as this will sometimes free up the threads.

Dick