Back to Riverrune's original problem. All the frustration or lack of same with FR customer service aside, you
still need to be certain you know where each of the wires goes before connecting.
Even if someone at FR had gone to the trouble of labeling each of the 4 wires I would still check them with a mulitmeter. The customer service/tech at FR has no way of knowing for sure which wires go where because the human being who wired up could have made a mistake, as all humans do. There really is only one way to be certain, and that is to check them yourself.
That is standard safety protocol when doing any work that could cause an energy release, whether electrical, chemical (like a propane line) or mechanical (like a tensioned spring). Be sure you understand what you have in front of you and that you have de-energized it before changing anything so that you don't release energy that could cause harm or damage.