bathroom pull switch probs

[hiram]

Hi, trying to replace a pull switch in bathroom of our static caravan, as soon as i have connected one wire it blows the fuse switch, either the positive or the neutral,makes no difference,it still trips, I got the new one from Wilkinsons Are pull switches all the same? or is there something I need to know? the old one worked fine until it started malfunctioning and fell apart.
Hope someone can help

Regards H

 

[ban-all-sheds]

What wires do you have at the switch?

How many terminals did the old switch have?

 

[bernardgreen]

When you say "one wire connected" do you mean one cable with two wires.

A single wire connected to a switch, no matter how incorrectly cannot complete a circuit, ( unless the wire is connected to an earth terminal which is earthed by some other connections )

 

[Taylortwocities]

Please tell us that you made a note of the connections to the old switch, or took a photograph?

 

[PrenticeBoyofDerry]

What colour are the core of the cables at the switch?
are any mark up or sleeved?
You said positive and neutral blow the fuse, does the switch have a terminal for the neutral to be switched? as this is not common on a bathroom pull-cord for lighting.