How do I figure out what's wrong with my Hitachi breadmaker?

You will need the manual to figure that out, and I doubt that anything is wrong, you just need to press and hold certain keys to reset the machine.

I can sell you the original manual and recipes booklets:

Hi, My name is Troy, I live in Ohio, U.S.A. and I own an eBay Store named “The Breadmaker Guru”. I carry kneading blades and owner’s manuals for just about every make and model of breadmaker ever made, even some replacement drive belts, pan seals and bread pans. I accept Major Credit and Debit cards, PayPal, Money Orders and Cashier’s Checks…even payments from Canada and beyond. If you’re interested, just go to the newest of eBay sites called “eBay Express”, created especially for those who would rather not sign up with Paypal. That website is: www.express.ebay.com. When you get there, simply go to the site search bar and type in your model number exactly as it is found on your machine. If you cannot locate your item from there, then contact me personally at troywiler@gmail.com. I’ll be glad to assist you, most times within 24 hours. Thank you.

P.S. With each owner’s manual purchase, you receive over 1000 extra bread machine recipes, most of which are alphabetized, tips on how to create the perfect batch of bread every time no matter what recipe is used, an ingredient substitution chart, and the results of a laboratory study documenting the bread machine process, from start to finish. As you can see, you get a lot more than you might expect.

Troy, The Breadmaker Guru
April 2007