Just got this Loco for Christmas to run around my den on a shelf. The loco runs, however it does not make smoke as advertised, despite what position the smoke unit switch is in. The whistle also does not work properly. When I activate the whistle lever on the transformer (type 4090) the locomotive speeds up and the light gets brighter, but the whistle does not blow. Well not all the time. I have heard a sound once or twice, but it sounds more like a diesel horn not a whistle. Should I take it to the local shop and see about repair?