Hornby Class 390 Pendolino : Repair Request

This Hornby Pendolino belongs to a young lad called Brodie. His parents bought it on Ebay only to find it didn't run. They were recommended to contact me after they posted for help with it on Facebook. Support - https://ko-fi.com/oobill73561 FAQ - https://ko-fi.com/post/FAQ-C0C6E0UO4