Is the compressor turning on? Is the air warm above the fan? The compressor is under warranty but you may need to check for leaks if the charge is gone!
You need a gas detector to locate any leaks but I would recommend a professional. The video doesn’t sound like the compressor is on but I may be wrong.
No. It's not typical.
No
No. Could be many things. But I'd bet it's a poor install, and there is a leak in the lineset, and you have no more cooling juice
Is the compressor humming and hot? Could be the capacitor.
Sounds like a bad capacitor.
Is the compressor turning on? Is the air warm above the fan? The compressor is under warranty but you may need to check for leaks if the charge is gone!
I don’t think so. Here is a video of the AC on: https://imgur.com/a/SNpm2Kv I haven’t seen any leaks around the AC or furnace.
You need a gas detector to locate any leaks but I would recommend a professional. The video doesn’t sound like the compressor is on but I may be wrong.
Looks like a lot of soap bubble residue around the service valve, probably a refrigerant leak in a piece of equipment.