Saw this today, this is connected to my AC unit,  Is this normal? I haven’t used the AC since summer, what happened?

Question from user nyjetsny1 at hvacadvice at reddit.com.

Answer:

What do you mean what happened? Why do you think something happened?

Answer from user HydrogenxPi at hvacadvice at reddit.com.

this is connected to my ac unit is this normal