Hvac Service call(water leak) 

Grrr…,cut off before the issue was resolved.

The red cap isn't a plug it will leak, it's just a thread protector.

What is the putty on the connector going into the air handler?

Soooooooo basically you’re showing us your problem ? I can do tons of videos of me, my neighbours, friends and families Issues, but why would anyone want to see that ??

Not helpful

Bruh, come on. At least show you fixing it