You may have spotted white and black flakes in water in the past. White flakes are created by mineral deposits from hard water, whereas black ones are caused by mold that develops in your water dispenser.
There are multiple possible causes. Check pages 12-14 (PDF pages 13-15) in the manual: https://useandcares.hamiltonbeach.com/files/840178600.pdf
Note: if you hear the refrigerator unit running or feel heat at the hot water tank, you have power. Not listed in the troubleshooting guide in the manual: pump or valve unit failure. I don't see anything on venting for the water bottle either, so in addition to the steps in the manual, do a check of any venting on the bottle attachment assembly for clogging.
You are my 40,000 question that I have answered! You don't get a prize, but I think that is pretty neat Paul :>D I have been here a long time.
The manual only says that you have to make sure that cooling is switched on (Page 12). The unit has a 1 year warranty. If it out of warranty, you just need to pick it up and take it to a refrigeration engineer. It may need topping up with refrigerant gas.
Consumer Support Questions?
How to contact us:
Telephone 800-488-5080 (Monday - Friday 8:00AM-5:00 PM ET) E-mail: [email protected][email protected]https://useandcares.hamiltonbeach.com/files/840178600.pdf
There are some videos here that might be of interest.
https://www.google.com/search?q=Hamilton+Beach+Bl-1-3+water+cooler+not+cooling+the+water
Hope the information helps you.
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Refer to manual that came with unit.
Big hint page 14
Even bigger hint and book mark this site.
https://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=49-50283-11.pdf