Sir Harold Mitchell - Fixed

[Chilly]

Received the Gresley loco set last week which enabled me to run all the loco's on the track DC before the main track arrives and they get decoders.

 

All 11 locos' (new and 75/25 split between Hornby/Bachmann) run well forwards and backwards apart  the Hornby B1, it starts off then "trips" the Hornby controller that came with Gresley.

 

I had run it for 5-10 minutes last week before this started occurring and this now happens forward or in reverse within 3-4 seconds of being powered.

 

There is nothing obvious underneath which looks clean, it is new has been stored in its box from receiving it , any ideas??

 

Chilly