You didn,t specify if it was a SWE or Swu..model..when I worked on those in the past the location of the Starting Station was mounted in the incline decking..yes while remove decking to work on the handrail drive system..the wiring for this has a tendency to drop down and rub against the moving stepchain..this has been a problem from day one wiring gets broken and even shorted out.this is also followed by a 41 fault which is a dead giveaway direction failure which will drop the emergency Brake..Oh how i miss working on that stuff...