What is a "Red Fail" fault for a signal monitor?
This article explains what a Red Fail fault means and how to troubleshoot it.
What is Red Fail?
The monitor detects a channel which has no active color output to the field, aka a dark approach).
When you get a Red Fail, the issue is in the cabinet. From the top of the Terminal block up in the cabinet wiring and signal components.
|
|
Here is an example of a diagnostic wizard for red fail.
|
|
|
The term Red Fail is when the intersections would rest in all red and a vehicle would come to an approach. When the lights were transitioning to green in that approach and a fault occurred, they would say if it is not all red then there is a “Red Fail".