Anybody here do kitchen equipment service ?

A guy over at the country club asked me today about an electric steam table. Apparently the refrigeration works so well now that they assume I can fix anything.

They have had the steam "fixed" repeatedly and the heating elements keep burning out.

Which sounds like they are leaving it on all night and running it out of water to me.

Of course they deny that.

Are there burn-out proof / run-dry elements available for these things? How about a float switch? These can't be the only people in the world having these problems.

Anybody here work on this stuff?