Bought a used K400 that works but makes a bad bearing-like noise and leaks rusty water into the base and jug.
Quick note: Some links are affiliate links. We earn a tiny commission if you buy (at no cost to you). Keeps the lights on!
24signal
27reviews9%18% Mixed73% Negative
Reliability is the story with the KitchenAid K400 Blender: most owners report the jar leaking from the base, a failing bearing, grease or rusty residue, and a growing noise, often within a year or two.
What owners love, and what they don’tWhat owners noticed
Owner reviews (27)
Add your reviewShowing 6 reviews mentioning loud Show all
Their K400 glass jug failed with grease at the base and a screaming bearing; warranty is pointless as the glass jug was unavailable, so they rebuilt the jar with a new bearing.
Two KitchenAid blenders in a row (a diamond and a Proline K400) had blade bearings that went loose and noisy and leaked rusty residue on the motor. The jar cannot be repaired, only replaced for about $300, and the blade could detach.
K400 jug failed after about a year, was replaced, and the replacement failed the same way with unbearable noise and grease, now rusted spindle. Calls it design flawed.
Second K400: the first was replaced in 2021, and a year later the second one is leaking grease and loud again; support replaced it again.
K400 got so loud it hurt their ears and left brown metallic goo after blending; suspects a failed seal and bearing.
Common questions about KitchenAid K400 Blender
What do owners say about KitchenAid K400 Blender?
Reliability is the story with the KitchenAid K400 Blender: most owners report the jar leaking from the base, a failing bearing, grease or rusty residue, and a growing noise, often within a year or two. Replacements sometimes failed the same way, and spare jars are costly or hard to find. It is powerful while it works.
Is KitchenAid K400 Blender worth it?
Of the 22 reviews with a clear verdict, 9% are positive, 18% mixed and 73% negative. The praise mentioned most is powerful. The most common complaint is broke down.
What do people like about KitchenAid K400 Blender?
The praise reviewers mention most: powerful (2 reviews) and solid build (1 review).
What are the most common complaints about KitchenAid K400 Blender?
The complaints reviewers mention most: broke down (19 reviews), loud (4 reviews) and overpriced (2 reviews). For example: Bought a used K400 that works but makes a bad bearing-like noise and leaks rusty water into the base and jug.
What does the signal score of 24 mean?
It's how well reviewed KitchenAid K400 Blender is, out of 100, next to the other blenders here. Two things go in: how its reviews compare with the best-reviewed appliance (positive reviews, mixed counting half, and how many reviews there are), and its own negative and mixed reviews, which take points off, so only a appliance few people are unhappy with scores in the high 90s. It's worked out from reviews only, needs at least 5 of them, and updates as new ones come in.
What are the specs of KitchenAid K400 Blender?
Category: Blender. Type: Full-size blender. Capacity: 1.4 L. Model number: 5KSB4026. Power: 1200 W.
Where do these KitchenAid K400 Blender reviews come from?
27 are quotes from Reddit, each linked to the original. Owner reviews are checked for spam before they appear. Every review, written here or quoted, is read as positive, mixed or negative.
