This week we have a BR Sprinter Class 155 - 57344 and 52344 in the works, along with a Class 37 D6704 in BR Green in for repair. Both locomotives exhibit the same problem - not running when power is applied. The wiring and general condition of both locomotives have been visually inspect and are fine, so in this video we begin the process to troubleshoot and isolate the root cause of the problems. The Class 155 is in West Yorkshire PTE Livery...