Hario Coffee Grinder Not Working? 5 Common Problems And How To Fix It

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Hario Coffee Grinder not working? You should read our article to see clearly the pros and cons when using Hario coffee grinders, as well as the tips to fix their common problem.

Coming from Japan, Hario has been famous for designing, producing, and selling glassware and household products. Today, the company continues to manufacture various items, such as microwave-safe kitchenware, coffee and tea implements, and aromatherapy and pet products. Among these products, Hario coffee grinders have become essential machines for multiple coffee lovers. In this sharing, we are going to discuss the pros and cons when using Hario coffee grinders. Simultaneously, the tips to fix common problems will also be presented so that you can deal with the situations by yourself.

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Pros and cons when using Hario coffee grinders

Though Hario coffee grinders are well known for their excellent performance, they have both advantages and disadvantages as follows.

  • With regard to pros when using Hario coffee grinders, it is noticeable that there is no electronic part in the machine. Moreover, you will find it easy to use and clean Hario coffee grinders.
  • When working, the grinders are quiet, bringing about comfort for the users. With burr grinders, the coffee beans are ground uniformly for better final products.
  • Parallel with the advantages, Hario coffee grinders are also found with some disadvantages. It takes some time to modify the setting. Besides, the grinders can take a while for thin-enough grinds.
  • Sometimes, the machine can have a problem with coarse grinds. So, you should consider whether it bothers your use much or not.

5 common problems when using Hario coffee grinders and fixing guides

After the discussion of pros and cons, it is essential to look at the common issues when using Hario coffee grinders. At the same time, we also present ways to fix them effectively.

Hario coffee grinder not starting

Sometimes you will find out that the grinder cannot start but don’t know the reason. This may result from the problem with power system.

How to fix Hario coffee grinder not starting?

To deal with this situation, at first, you check the Hamilton Beach grinder to make sure it is plugged in properly. The machine must be plugged for operating.

When utilizing the center pulse switch, if the device performs at one speed setting while malfunctioning at other speeds, this can be understood that the switch is damaged and you should replace at once.

Sometimes sugary substances or food waste can result in button jamming. Keep the switch clean and remove liquids and food products if found.

Hario coffee grinder not operating due to the motor

If the Hario grinder does not operate, the motor shaft might be frozen.

How to fix Hario coffee grinder not operating?

In this case, it is advised to disassemble the grinder, then clean the shaft and prepare one or two drops of lightweight machine oil to lubricate each bearing point.

Consequently, you should rotate the shaft to distribute the oil uniformly.

Hario coffee grinder not running due to thermal limiter

In case the Hario grinder still does not run, the thermal limiter is possible to be burned out.

How to fix the Hario coffee grinder not running?

First, you can find a substitute thermal limiter for the burned one, then operate the machine to see the performance.

If it is not available to find a replacement for Hario grinder’s thermal limiter, then it may be more expensive to substitute the grinder.

Hario coffee grinder not spinning due to the clogged grinds

When you use Hario coffee grinders, sometimes they do not spin. In fact, it may due to the grinds clogged in the grinder.

Grinds can be clogged in any area and this commonly happens beneath the button starting grinding. This lack of contact prevents the grinders from functioning properly.

How to fix the Hario coffee grinder not spinning?

If you meet this problem, you should unplug the machine and brush any grinds from the switch with a fine brush.

Then press the switch some times using a toothpick. If the issue still goes on, you should disassemble the Hario grinder to clean and examine the switch for the break, which you can fix.

Hario coffee grinder vibrating

If the Hario coffee grinder vibrates, the electric coffee grinder’s burr may bend and dull, or the electric switch can break.

How to fix the vibration of Hario coffee grinder?

When dealing with this situation, you are recommended to look over the burr and find a replacement if it is damaged or dull.

Another root of vibration can stem from a worn motor bearing. You should unplug the grinder and detach the access plate.

Video Tutorial: Fixing Hario Coffee Grinder Not Working


After sharing about Hario coffee grinders, we hope you have found the useful information. There are both pros and cons while using Hario coffee grinders, and you can rely on these features to make your decisions. Equipping yourself with quick guides can help you fix the common problems quickly. Thank you for reading!

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