23-11-11, 07:11 PM
(23-11-11, 08:49 AM)pitternator link Wrote: not had this problem, but have had a few of the gold circles on the base of my 550 unit itself go black...and interrupt the unit. Is this common?..I was told its oxidisation caused by water ingress and it will come off with gentle abrasion .Is this right ?Depends if you have it permanently live or not. Mine is, and the pins are corroding owing to electrolysis (apparently). Everything still works, it just needs the odd wiggle now and again.