OK got a look finally. Its an Aquameter, which I find is gone out of business and has been sold to Rule Industries.
It might be easier to just buy a new one.
I found a link to Viking repair in Kingston MA. on the website.
~..~..~.. ><((((º>
Things done at the last possible minute are done with the greatest possible information. Procrastination is, therefore, the most efficient means of doing things.