vacuum cleaner - broken roller brush (Sciennes EH9)

Shark Duo Clean corded vacuum cleaner. The roller brush has stopped turning, it's not the motor - it turns a tiny bit then stops like it's jamming. Still works fine with other attachments (upholstery and crevice). It might be possible for someone who knows what they're doing to fix the roller, or the head can be replaced but it's around £70 new from Shark. Unfortunately the roller itself can't be removed.

Offering in case it's any use to anyone before I skip it.
Interested in this offer?
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