trackspot issues

I have some issues with some trackspots.

first one seems to run for a maybe 30-60 seconds and then it blows the fuse on base and dies?? any suggestions??

second one powers up, homes and then dies, then powers back up and dies?? lose connections??

one has DMX issues, but I'll follow through as per the other post i read about that.

I might have one more, but can't remember what the issues are.

I hope this will help get these fixed for me!! thanks Darwin
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