Coffee grinder will not turn on

Question edited for clarity.

How about a new grinding cup for $10?

https://hamiltonbeach.com/removable-grinding-chamber-990099602

There seems little support and no parts diagrams that show how the parts fit together. There are a couple of videos that may help as all models work to a theme where the grinding cup is concerned.

Manual and Hamilton Beach contact details

https://www.manuals.ca/hamilton-beach/80393/manual

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Try tapping the other way. You may have unseated the motor's carbon brushes.

or

Send it back under warranty.

https://hamiltonbeach.ca/customer-service

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Take to the store where it was purchased and have it replaced. Warranty
Get receipt.

Customer Reviews: Hamilton Beach 49995 FlexBrew Single ...

www.amazon.com/Hamilton-Beach...FlexBrew.../B00...

Amazon.com, Inc.All in all, the Hamilton Beach FlexBrew Single-Serve Coffeemaker is an ... exhibit the same exact problems using the K-Cups recommended by Hamilton Beach.

Hamilton Beach FlexBrew Troubleshooting Common ...

? 3:39
https://www.youtube.com/watch?v=yA2dlGKUBKM
Sep 7, 2015 - Uploaded by Ronald Kretz
Hamilton Beach FlexBrew Troubleshooting Common Problemmust see if you ... Hamilton Beach Single ...

Customer Reviews: Hamilton Beach FlexBrew Single-Serve ...

https://www.walmart.com/reviews/product/21130276

WalmartProblem the model I purchased was the only one they made that uses K Cup. ... MyHamilton Beach FlexBrew Single-Serve Coffeemaker was truly a wonderful ...

FlexBrew® Single-Serve Coffee Maker (49995R) - Hamilton ...

https://www.hamiltonbeach.com/all-coffee-maker...

Hamilton Beach BrandsThe FlexBrew® Single-Serve Coffeemaker allows the flexibility of brewing freshly ...Not sure how much coffee grinds to add when brewing your next cup? ... and thenrunning 2-3 cycles of cold tap water before making the next round of coffee. ... 2016Hamilton Beach Brands, Inc. Trademarks by Hamilton Beach Brands, Inc.

Hamilton Beach FlexBrew 49995 - Consumer Reports Online

This what I could find:
http://kitchen.manualsonline.com/manuals/mfg/hamilton_beach/80365c.html

chances are your motor is burned out or the bearing has gone, it would be less hassle to replace the grinder than repair it. in any case blade coffee grinders are not the best thing to use, they create an inconsistent grind leading to a bad extraction, if youre grinding for anything upto a filter machine then a basic burr grinder will do, if its espresso then youll need a ceramic hand grinder like the porlex mini or be prepared to spend serious money on an electric burr grinder (mine, a mazzer super jolly was over £300)

You have a screw missing take it back to where you boght it and have them fix it for free or replace it. It is still under warrenty, You may have gotton a lemmon, if they won't replace it then post here for a better answer.
Avid101

The Hamilton Beach Custom grind has a 1 year warranty. Send it back for repair.
Squido

I have the same problem . Ireally like this grinder and have been thinking of buying another , but
I'm afraid of the same problem. Don't want the same problem.

The replacement lid can be found at:

http://www.forumappliances.com/i-656-Hamilton_Beach__cover_lid_.html