Common Blender Problems and How to Repair Your Appliance

How to repair a blender

You can fix some of the most common blender problems with a little bit of work at home.

It’s frustrating when common household appliances break, but instead of using that as an excuse to upgrade to the latest model, it’s worth trying to fix it. Here are some common blender problems and tips for repairing it yourself.


Leaking is the most common problem with blenders. The first thing to check is that the blade assembly is tightly screwed onto the jar. If everything seems snug, the problem may be with the rubber gasket or O-ring, located in the blade assembly. Over time, this rubber can harden and crack. The good news is rubber O-rings can be purchased at your local hardware store for a few dollars.

Unfortunately, there are times when leaking comes from a crack in the jar. If this is the case, you can purchase a replacement jar without purchasing an entirely new blender. Do compare costs, though. If your current blender is several years old, it may be more cost effective in the long run to replace your blender with a newer model.

Stuck Buttons

Recently, blender manufacturers have begun to move away from push button control panels and implement digital control panels. However, many of us still have those old-school models, and the push buttons are bound to get stuck at some point. No matter how hard you try to keep the base clean, foods and liquids will spill onto the base of the blender and leak in between those buttons.

Most often, all you need to do is give your blender a good deep cleaning. Some models allow you to remove the face that surrounds the buttons. Others require you to unscrew the bottom of the base and remove the housing to reach the buttons. Either way, a small, dry toothbrush will allow you to access all of those tiny crevices. Then go over all the parts all with a slightly damp sponge. Make sure all the parts are thoroughly dry before reassembling your base.

Slow-Moving Blades

When you push the “Crush” button and get “Puree,” there is a problem with the blades on your blender. Often, you will hear the engine start to run and then slow down or chug. Often times, this is due to food particles clogging the blade assembly. This is an easy fix. Just disassemble the blade assembly (located at the base of the jar) and soak all of the parts in warm, soapy water for 30 minutes. Then give all of the parts a thorough scrub. Once you reassemble the blade, turn the blender jar over and apply a small amount of WD-40 to the blade assembly. Just make sure you don’t spray WD-40 inside the jar where you will be placing food.

To get the most use out of your blender, it’s important to make sure you are using it properly. Preventative maintenance is important. Remember, don’t overload your blender—it’s hard on the blades and the motor. It’s better to make two smaller batches rather than one large batch that places stress on the blender. Also, keep your seals tight so liquids don’t leak into the motor and cause corrosion.

If none of these fixes work for your blender—or you just can’t resist the lure of the latest new thing—check out the blender reviews to help you pick out a new one.

Editor’s note: If you have professional experience with kitchen appliances, Viewpoints is recruiting experts in priority product categories to write for our blog. Check out this overview of the Viewpoints Category Expert Program, including qualifications, compensation and how to apply.

Amanda Bryant (56 Posts)

Amanda Bryant is a design professional with an interest and expertise in products for the home and office. She is founder and principal of HangItUp Chicago, a fine art rental business partnering exclusively with Chicago-area companies.