BlendJet not working, what are the usual culprits?

[Thomas Martinez]

Was looking into why these little BlendJets crap out so often and figured I'd toss the list here for anyone else struggling with them. From what I can find, there are six common issue with them (from the LED indicators alone) before you even have to crack open the unit:
Flash purple = in lock mode (double press to exit)
Flash red = jar not seated into base correctly
Solid red = blade jammed
Battery not charging
Motor going bad
Power button failure
The button and charging port are the most common failures due to these mentions.
For those who have actualy opened one up to tinker with the battery/motor, have you done so? They are sealed pretty tightly, but you could replace the power button. The charging circuit is the same question, is it the charging port or is it further along the circuit?

 

[Gorgeous Gerbil]

opened one for my kid, the housing is glued not screwed. You basically have to crack it. Not worth it imo, just buy a new blender

 

[The Castle of B]

Flashing purple gets me every single time with my wife's. She'll call me from work freaking out and its literally just the lock. Double press the button, problem solve. They really should of put that in bigger letters on the manual.

 

[Planet of the]

a real blender. These things are toys lol

 

[Impossible Ibex]

Has anyone actually measured the current draw on a healthy one vs a dying motor? I'm curious as to if there's a way to diagnose a bad motor vs. Guess work.

 

[Enchanting Elk]

the charging port is 100% the most common failure. It's micro usb on the older ones and the solder joints crack from people yanking the cable. If you can solder you can fix it but you have to get past the glued shell first

 

[Mic]

bought one, used it twice, sits in a drawer. Waste of money

 

[Gorgeous Gerbil]

if you do crack one open use a thin guitar pick and warm it up with a hair dryer first. Heat softens the adhesive. Dont use a knife unless you want to slice your hand open

 

[Scottish Bible Basketb]

You forgot one of the biggest issues, the battery cells themselves swelling. Mine puffed up after about a year and the bottom started bulging out. This is a fire hazard and there's no easy way to fix it. The BMS on these is also really cheap and locks the cells down if something happens to the battery. In my opinion combined with the swollen batteries and glued together housing these are landfill products by design.

 

[Impossible Ibex]

You forgot one of the biggest issues, the battery cells themselves swelling. Mine puffed up after about a year and the bottom started bulging out. This is a fire hazard and there's no easy way to fix it. The BMS on these is also really cheap and locks the cells down if something …

wait does the BMS actually have a reset or is it just done once it trips?

 

[Scottish Bible Basketb]

wait does the BMS actually have a reset or is it just done once it trips?

On these specific units it's basically done. I haven't seen a reset pin on the BMS or a specific IC on the board for these BlendJets. At least not when I looked which was the same as looking into the motor to diagnose the issue.

 

[Pixellated Han]

flashing red = jar not seated right is the one that gets people. Half the time its just a tiny bit of pulp on the contact ring at the base of the jar. Clean that and its fine

 

[The Castle of B]

flashing red = jar not seated right is the one that gets people. Half the time its just a tiny bit of pulp on the contact ring at the base of the jar. Clean that and its fine

yes!! happened to me with smoothie residue. Cleaned with a qtip and rubbing alcohol and works fine.

 

[Misty Mandrill]

the button is a tact switch. Cheap part, like 20 cents.
but getting to it is the problem because of the sealed shell

 

[Planet of the]

or you could buy a ninja and never deal with any of this

 

[Impossible Ibex]

the button is a tact switch. Cheap part, like 20 cents.
but getting to it is the problem because of the sealed shell

is the tact switch a standard size? could you in theory desolder and put in a higher quality one or are they all about the same

 

[Misty Mandrill]

is the tact switch a standard size? could you in theory desolder and put in a higher quality one or are they all about the same

yeah pretty standard 6x6mm through hole. Omron makes nicer ones rated for way more cycles than whatever bargain bin part they ship with. Would definitely last longer if you swapped it

 

[Crazy Crane]

I fixed one for my sister-in-law last christmas. Used a heat gun on low, worked my way around the seam with a plastic spudger, took maybe 20 minutes to get it open without cracking anything. Inside was actually pretty straightforward, the battery was a single 18650 with a tiny protection board. Her issue was the charging port had pulled away from the pcb, reflowed the joints and added a dab of hot glue for strain relief and it's been working for about 8 months now. So it can be done, just takes patience and the right tools.

 

[Mic]

I fixed one for my sister-in-law last christmas. Used a heat gun on low, worked my way around the seam with a plastic spudger, took maybe 20 minutes to get it open without cracking anything. Inside was actually pretty straightforward, the battery was a single 18650 with a tiny pr…

20 minutes to fix a $40 blender lol

 

[Crazy Crane]

20 minutes to fix a $40 blender lol

sentimental value, she got it as a gift. And i enjoy the tinkering. Not everything has to be about money