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The Samsung NaviBot SR8855 is a handy autonomous vacuum by Samsung.

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Short shift and turn.

Navibot sr8855 after repair of FET tranzistors for brush have bad mooving - navigation.

From the beginning it worked well and after some time was problem in navigation.

It looks like that: move 20-30cm stop and go back about 3cm, turn 90st. and repeat.

Sometimes work good for 1 minute and then again fail to this state.

I try test mod and all sensors look fine, motors are OK too.

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I have the same issue. Is there a fix?

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Hi,

yes, i found that it was dusturbation in system . I add some capacitors on motor and all is OK

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Can you describe more precise what did you done?

Could be the aging of the accumulator?

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I must replace suction motor and with it start the disturbance of electronics. For this I used capacitors on motor pads. I was 1nF + 100nF + 1uF together. To other motors must be carefull becouse are PWM drivered. There You can use only some smaller - max 100nF capacitors.

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Hi

What voltage do you use in capacitors?

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Can be that the battery started to decay?

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It could probably have an effect but it is not a reason.

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