I have my Carousel (10257) powered by a Medium Linear Motor connected to a Hub (88009). There is a second motor in this Hub that is also powering the Roller Coaster (10261).
Lately the Carousel seems to be labouring in its movement, which is putting a strain on the motor (which now alternately flashes orange and blue). I've attached a video of what's happening for reference.
Things I have ruled out:
- It's not a battery issue
- It's not this specific motor (I tried a different motor)
- It's not down to powering two sets at once (it still happens with the Coaster disconnected)
Recently I had to fix the long technic beam that runs across the centre, as it had started to dislodge from the pins it was on. I thought that was the problem, but it has continued. It sounds sort of - I dunno, squeeky?
One thing that might be happening is that the Light My Bricks lighting kit is somehow putting a strain on the movement. But I can't see any evidence of this.
To be honest, I'm starting to feel resigned to rebuilding from scratch, but this post is a last ditch effort to see if I could be spared from that (I already have too many sets waiting to be built!).
It's probably asking a lot for someone to diagnose this from a video and description, but any thoughts welcome!https://youtu.be/Kjf1P0EwSRg
I removed the tires, though unfortunately do not have spares in my collection. But I gave them a thorough clean, until they were looking in great condition (I could see no sign of wear and tear). I used a mini vacuum on both the tires and the tiles. Unfortunately, the problem persisted.
I was pretty confident the problem was in that general area, so I removed the whole top assembly. I ran the set again, and that proved me wrong - it was still labouring, meaning that the problem is hidden somewhere further down.
So I stripped the set back further - not the whole way, though pretty far back - and I've gotten to a point where the set rotates perfectly, and the motor shows no signs of struggle. So, in some sub-assembly that I have removed, there is a problem. It's a pain to have to rebuild this much, but if it sorts the problem out then it'll be worth it.