How can I get the owners manual, or a use and care guide, for a recently purchased glacier bay water dispenser?

Find their website, or call them.

They make sevceral is this yours Glacier Bay Hot, Room and Cold Water Dispenser in Stainless Steel-VWD5446BLS at The Home Depot

Try this: http://www.homedepot.com/catalog/pdf...ae91efc3db.pdf