As some may have noticed there seems to have been an uptick in auger motor related failures on the S1 modules. Notably this was often resulting in the main rotor shaft breaking, and seems to be something possibly affecting disproportionately the newer modules. I believe my 2025 delivered snowblowe…

Yours looks like mine and I have the early batch of the 24 S1. [C70917E5-614F-4A6F-BCCD-E788EC33B823_1_105_c]

I’ve only seen 2 posts of broken shafts that I can recall. I thought they were also newer ones, but could be wrong.

Interesting, I wonder how early the one in my photo is

My new blower has a fully sealed chute rotation motor and the main pulley has what looks like an updated bearing on the main impeller drive pulley with a snap ring retainer. My other S1 I received late this past summer

Looks like a 23 or maybe one of the 22 prototypes

Also, I don’t think breaking belts is really a standalone issue - that’s a symptom of another issue. The fracturing motor shafts likely represent a manufacturing defect either in the shaft itself or tolerances or poor bearings, etc. The belts will break from something else not being right - pulley…

I believe mine is the same as Bryan’s (going by memory)

Could also be a symptom of a bad belt heating up the shaft until it breaks.

yeah I do suspect the shaft failures have some heat involved from either bearing or belt/belt tension/alignment/etc.

Snowblower motor (shaft failures)

Yarbo Product Talk

rcguymike January 10, 2026, 7:55pm 3

The newer blowers were breaking belts, the “mid-old” blowers were breaking motor shafts… I had to put the belt from my old broken S1 on the new S1 when the belt broke after a few runs. S1 down - #35 by rcguymike

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Snowblower motor (shaft failures)

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