LMS Points Failures

In the last week there have been two points incidents on the LMS side:-

1. One set can be operated from the control board – but only in one direction;
2. Another set will not switch at all – even manual operation is difficult.

Today I investigated issue (1) but was unable to resolve it. I started by finding a new points motor so that I could prove whether the fitted motor was the cause of the problem. I disconnected the wiring harness from the problematic points and connected it to the brand new motor – supported on a couple of blocks of wood. It showed the same problem, i.e. that the motorised pin could be operated in one direction (remotely from the control board) to the other side. But it would not move back. That eliminated the original points motor as the cause.

I then checked all the wiring connections and reran the tests – still the problem persisted. I even ran a new cable from the points wiring harness across to the control panel connections – still the problem persisted.

I then connected a new switch to the wiring so that I could eliminate the control board. The problem persisted.

At that stage I gave up for the day and am now contemplating what to do next. I think I will use new connector blocks to link the new switch to the new points motor via two new lengths of wiring. Surely that should resolve the issue???