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It is usually recommended that before fitting a decoder that a loco is tested on DC first. Did your loco work OK on DC ? If it did, then this rules out any fault by Hornby (swapping wires etc) and makes the peoblem likely to be the tender wipers mentioned by 34C or something you have done.

Graham Plowman

QUOTE (Bill Bells @ 3 Sep 2007, 18:50) <{POST_SNAPBACK}>I bought the Devon Belle Train Pack for my wife for her birthday, and have fitted an Hornby DCC decoder to it (not sure whether DCC relevant or not).
With just the Loco on the track it runs very well, but when we put the tender on the loco, it shorts out the whole system.
I can see 2 contacts on the eye on the loco which appear to contact a metal plate a the top of the pin on the tender, and I am guessing it is this that is shorting out the system. Should this be happening?
I am looking for advice as to
a) why it is happening and
B) what can be done to resolve this.

Hope someone can help


Bill Bells

n.b. I have emailed Hornby, but their response time is usually not quick.
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