Hi John. Fluky symptoms like this are highly suggestive of an open circuit. My dollar is betting that you'll find a connector that makes a poor, or no connection, somewhere in the instrumentation circuit, or a bad ground for the instrumentation. I don't know where the binnacle's ground is, but I'd find it before I let myself get too depressed about it. Good luck. Rick. --- In dmcnews@xxxxxxxxxxxxxxx, "jchapelhow" <chapelhow@xxxx> wrote: > Thank you all for your calming words, and things to try. Replacing > the harness is now on hold since I have been convinced this may be > overkill! > > My current list of woes runs like this.... > > John Chpaelhow > MMG 287W : 'Boeing' #0737