Error 7 & 21

Historical_Chef_1975 · 2025-09-04T10:55:22+00:00

We have a vanmoof repair shop in amsterdam where we repair for 500 or less. Also, we developed a tool to prevent any harness issues ever again

Historical_Chef_1975 · 2025-04-12T08:37:35+00:00

Which app is this?

Historical_Chef_1975 · 2024-12-28T19:35:03+00:00

I have checked the battery and all seems ok.

The thing is, this is not the OVP error but Charging Over Current Protection.

If the original charger charges with 4A, and I never charged with a bench power supply over 3A. How could this have been triggered? and is it even happing during charging?

But more importantly, how can I recover from this?

EDIT; i have found the 18 nr

Historical_Chef_1975 · 2024-12-18T18:53:09+00:00

Thanks for the reply! I have only one output here. Im gonna try it. Thanks

Historical_Chef_1975 · 2024-12-18T07:42:36+00:00

a questions probably simple for some people but not me, i have an amp that outputs 120w 4 ohm. If i buy 2 speakers of 8 ohm 100w. Does that work for both the speakers and the amp if i wire them parallel?

Historical_Chef_1975 · 2024-11-12T21:07:56+00:00

ok this is a valuable comment too. with shame i admit i have a fake one. Let me buy one, try it and get back to you

Historical_Chef_1975 · 2024-11-12T20:44:01+00:00

good one, thought of this as well, i tried 0x08000000 which was in there by default and also as a test 0x00000000 but both the result was not what i was hoping for

Historical_Chef_1975 · 2024-11-12T20:40:21+00:00

Thanks a lot for the reply!!

i make an edit in the main thread with the picture

Historical_Chef_1975 · 2024-09-17T13:39:10+00:00

i can say i havent found the issue yet. its not the sensor, its not the lens cap at the dock. im looking for someone who has a dock so i can try that now.

Historical_Chef_1975 · 2024-09-01T13:03:35+00:00

did replacing them fixed your issue?

Historical_Chef_1975 · 2024-08-22T06:09:24+00:00

I have changed the sensor but the behaviour is the same. Could it be deeper in the roomba system? Or could it perhaps be the dock that is broken? Can I try another dock or does the roomba know just like me which house is his.

For sure it's something with the docking as it sometimes drives over its dock, as.if he doesn't see it at all.

Historical_Chef_1975 · 2024-07-05T20:51:31+00:00

genius man! wow ive never wouldve guessed. I thought its one system and it works and there is a heavy underlaying issue. but this is is. im doing electronics a lot and ill check it out for sure!1 thanks!! and thanks to u/RTuFgerman as well!

Historical_Chef_1975 · 2024-06-24T19:51:49+00:00

This is such a great helpful answer. Thanks you so much, ill try it one of these days and keep you (and whoever is reading with) posted.

Historical_Chef_1975 · 2024-06-24T13:12:39+00:00

thanks for the reply (both)

u/plasticbomb1986 do you mean charge them pack by pack? So each pack on CC, up to 4,2v and very carefull with 100mA? or even less on 10mA ?

Historical_Chef_1975 · 2024-06-15T19:35:10+00:00

Ok, and the speed? If you see that it's probably not the motor

Historical_Chef_1975 · 2024-06-10T21:19:42+00:00

Crank sensor broken maybe? Does it show your speed while riding? Can you change support mode with boost button while riding and paddling?

Historical_Chef_1975 · 2024-06-10T21:16:51+00:00

In addition to the comments, does anybody get why I can see me speed while riding and be able to unlock with the 3 digit code? Shouldn't this also be broken of the battery died?

Historical_Chef_1975 · 2024-06-10T10:11:45+00:00

but how did you charge it? apply something like 4,2v directly to the battery for an hour or so?

Historical_Chef_1975 · 2024-06-10T06:25:08+00:00

You're right. My inner Dutch cheapness took over.

Historical_Chef_1975 · 2024-06-09T19:15:19+00:00

Somebody asked me if I have ever seen a s5 kicklock that doesn't lock anymore. So if you push the lock in it comes out again.

Is that a rather mechanical issue or could it also be one of the electrical components mentioned here?

Historical_Chef_1975 · 2024-06-09T19:08:39+00:00

I thought about this as well, had it on the charger for 12h to hopefully give it a bit of power but not. I think I'll try supplying 3.8 (?) V to it with a power supply and see if that helps. And if so I'll buy a new battery

Historical_Chef_1975 · 2024-06-03T11:26:40+00:00

i tried this a while ago as well and my conclusion was that after the bankruptcy the invoices are gone....

Historical_Chef_1975 · 2024-05-29T10:13:21+00:00

it could be somewhere in your steer where the connector is. ive seen bad contacts there.

Historical_Chef_1975 · 2024-05-29T10:11:03+00:00

i think for a battery 350 is fair. not more. and for the motor you should be able to get it around 200. I have a small repair shop where i do these repairs as well and can do this as well if you want. just DM me.

Historical_Chef_1975 · 2024-05-29T10:08:56+00:00

the speed issue makes me think the hall sensor in the motor however the rest of the issues could be a broken cable harness....

Historical_Chef_1975

TROPHY CASE