It's easy to lose track of manuals, especially when it's something you don't need to reference very often like a large appliance. ManualsLib is a free collection of a lot of different product manuals that doesn't require an account to access.
We've talked about using Google and Amazon to find manuals before, but ManualsLib is another resource you can add to your manual hunting toolkit. The database has around 450,000 manuals currently and an easy-to-use search engine for finding them. Unlike other libraries of PDF manuals ManualsLib doesn't require an account or payment for files. You can also view the files directly in your browser. However, if you do want to download the manual so you can reduce clutter and store it on an ereader you can with a single click.