(ET) Another episode of Stump-The-Elec Trak Owner

[Klein Robert W NPRI <KleinRW Npt NUWC Navy Mil>]

Well,  My Wheelhorse C-185 has started doing a truly Bizarre thing and it 
appears to be sucking the life out of my T-105 Battery bank.

When I engage the battery isolation switch, I get a random, and sometimes 
rapid energetic clicking of a solenoid relay engaging and disengaging.  
I'm not talking about the small control relays at the top, but the big 
ones behind the kick plate.

The unit runs OK through all the speeds but I think I can hear/feel a 
solenoid relay clicking while I'm in motion.  This is not a constant 
occurrence but more intermittent.

If I pull the middle fuse from the fuse block, the clicking stops... Duh!  
Anyone got any ideas as to what causes this?

Robert W. Klein II
SSGN Deputy Technical Manager AWS/AWSS
1176 Howell Street
Newport, RI 02841
Phone: 401-832-1948
Toll Free:  1-800-669-6892 Ext. 21948
FAX:  401-832-7877
e-Mail: kleinrw npt nuwc navy mil