Brick.ie The Irish Association for Adult Fans of LEGO®

I recently picked up a second hand train set with a Powered Up hub and motor. The hub itself (i.e. not including the battery insert) does not power own when the insert and batteries are added and I can see no visible physical issues with it.
Before dumping it, I was wondering if anyone knew of someone that might have a look at it and do a provisional check of it to see if it's an easy fix. In my head I'm thinking of spending (say) E20 on it to see what can be done for that money... maybe any electrician/model repairer wouldn't even look at it for that sum of money but I don't want to just dump it.