Drop sensors are dirty error, but they are CLEAN, HELP!

I did remove the battery for more than one minute, and I also unplugged the three corresponding cables from the motherboard.

Hi have the same problem with my 15c

Eventually after taking all the advice above I decided to split it all apart and find the drop sensors and see if they were really dirty.

So unscrewed all the case fittings, easy enough, split the shell open fairly mucky in there as expected.

You can prise apart the outer ring where the actual drop sensors are, 3 in total, two small black cases attached with ribbon callers on each side and then also two bulb type open leds on one side only.

I disconnected the ribbon cables on the small cases, levered them open and they were filthy, they had what almost looked like rust stains in there, no idea how, any way, have cleaned them out throughout inside and outside, wiped down the exposed bulbs all round and refitted everything, works like a dream!

So maybe the little beastie was right all along, the drop sensors were actually dirty! But inside.

Hope this might help.

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Great advice.
There are videos around how to dismantle the Robovac.
Its easy for a skilled person.

My daughter and I opened “old Willy” and swapped the left brush motor.
She was really perfect to unplug these little plugs from the main board etc.

(And we marked these to plug them in again in correctly .
Also we took different little “containers” for the screws and label these
Normal engineering tricks. These help a lot and is saving much time :smile:)

I had this same issue for weeks and could NOT figure it out. I have two Kyvol’s, both are a few years old now and I’ve never had an issue with them in the past. They have been used DAILY for atleast 2 years and we live on a farm…so they have ‘earned their keep’ : )
I did some online research after the cleaning and other manual tips didn’t resolve the issue, and I found some people posting about how bright sunlight could affect the sensors, SURE ENOUGH I tested my machines after using them with the curtains closed and NO ISSUES! : ) We live in soggy, wet NW Oregon so bright sunlight isn’t something we get much here LOL! And I usually run them early in the morning, so pre-bright sunlight… hence why I’ve not had an issue until recently.
But it did resolve the errors! Give it a try! : )

Take a look at my post above and try a reset by battery removing.

Glad they are working for you

Remove the front 2 brushes and try again.

My brushes were old and dirty, once removed no more issue.

Try cleaning the brushes or but new ones.

I cleaned them in very hot water and washing powder and not the bushes have gone straight again and pretty good.

Of course you have to keep ALL brushed clean.
The best it to clean these properly after every cleaning cyclus.
I do this since years and “Old Willy” is working from the first day I got it.
Its about 4 years now.

If you don’t, the whole machine will die pretty soon.

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Of course you have to keep ALL brushed clean.
The best it to clean these properly after every cleaning cyclus.
I do the since years and “Old Willy” is working from the first day I got it.
Its about 4 years now.

If you don’t, the whole machine will die pretty soon.
Game over.