How to fix a pull cord ceiling switch [setup, self & voltage test, strip/tear down] - YouTube
Electric shower - switch problem. | MIG Welding Forum
Tips For Wiring up an Electric Shower Pull Cord - YouTube
The shower pull cord isolation switch has been wired incorrectly, which is concerning because a professional person would know that it is important that any switch with a neon light on it
MWJ Services - Shower Pull Cord cabling burnt out due to loose connection. This is a common problem with badly fitted pull cords but this is the worst one I have personally
David Savery Electrical Services Ltd. - Top tip: Shower Isolators
How to replace a pull cord switch - Fitting or Repairing Bathroom Pull Cord Switches