@Yarbo-Forum can you also please explain what the root failure cause was.
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I’d make sure and ask for that in your ticket too.
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This left wheel lock up issue has come for my Yarbo as well, on Day #1 of snowthrowing no less.
A root cause explanation would be really helpful, especially as it seems to be more common than what could be dismissed as a fluke.
In the meantime, I’m told a new Core will be heading my way, but am waiting for the details.
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Ugh. Keep us posted.
Oh no. I’m sorry to hear it. Certainly not the ideal first impression of Yarbo.
Hopefully the replacement core will arrive soon, and this will be the only challenge you experience this season!
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The root cause of the issue has been identified as a drive motor failure, which resulted in the wheel locking up.
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The root cause of the issue has been identified as a drive motor failure
@Yarbo-Forum I think they were asking for the root cause of the motor failure, not the more obvious cause of the wheel being locked up, which is the motor failure. Bad windings? Bad electronics? Bad bearings?
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Yes, but why does the left wheel motor fail so frequently? Any way to prevent or protect against it, either from an end-user or a product design perspective?
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Maybe we’ll get lucky and they find out that the left drive motor fails due to zero turns and they’ll banish them. Ok. Ok. Ok. A guy can dream…
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That made me laugh out loud. 
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I sense the ban all zero turns movement gaining momentum again. Who has the picket signs? 
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Same problem. Left wheel blocked (error LW001). Occurred December 13. Still waiting for a decision from Yarbo on what seems to me to be an obvious hardware fault.
I too would like an update. Ticket 140320. And a root cause explanation as well.
Yarbo is still 75’ from it’s charging base which is a pain for me to keep it charged so that someone can sign in and access all the data to verify the cause.
Plus yes it has been snowing a fair bit here which adds to the frustration and in working around it.
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A question for my Left Wheel Blocked people: what type of work plan were you running when the left wheel gave up? In my case, I had my driveway mapped with areas only and had successfully cleared it multiple times. I added some sidewalks, and got the left wheel issue during one of the first (dont recall if it was the first try or the second) attempt at executing the sidewalk plans. I have a replacement core now and have deleted all of my sidewalks; its performed with no issues so far. Just wondering if sidewalks are common to these left wheel failures. I know there are other issues with how the sidewalks behave (I have a ticket in currently for one sidewalk executing the entire plan entirely in reverse).
@bryan.wheeler I suspect the right wheel blocked case you saw might be an outlier, there sure seems to be an issue with the left wheel.
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Keep us in the loop on the backwards sidewalk. I didn’t have the mental strength for a support ticket at the moment for my backward sidewalk running.
@Yarbo-Forum ticket 136866
Simple circular area plan. Nothing fancy. Jokes aside, looking at where it stopped I DO wonder if a zero turn manoeuvre was in process at the time.
We are the Left Wheel Blocked Bloc.
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Mine failed mid-zero turn at the end of a sidewalk. Hmm…..
Mine failed just doing a smallish (400 square feet) area. About 2 minutes in. It had done this area a few times before without incidents. My yard only has areas (6) and pathways (4) defined so far … I don’t have any sidewalks configured yet so unlikely a link there.
Yarbo had done 2 areas and hour or two before. Returned to the docking station to charge for an hour or two, and then I sent it out to do another area. Yarbo died 2 minutes into the area it had done before successfully.
@balmerjd @spiegl.dave I’ve discussed this with our after-sales team, and at the moment we don’t yet have a definitive root-cause conclusion.
Our initial suspicion is that it may be related to behavior in automated work plans, where right-turn maneuvers occur more frequently than left turns. This can result in the left wheel being used more often as the primary drive source, potentially leading to increased wear over time. However, this is still a hypothesis and has not been fully confirmed.
To better understand the issue, we’re planning to pull together several similar cases and conduct a more focused analysis to identify the true root cause.
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I’m exactly the kind of guy that jumps to contusions, it’s the zero turns. 
(Yes contusions is the work I wanted)
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