GE side to side - fizzing sounds from back of freezer

Refrigerator & Freezer Repair
1

Gentlemen,
I inherited a TFX22ZPBE WW side-to-side fridge with the house. Been using it for 2+ years without major issues.

The other day I opened the freezer door and noticed a dripping sound, followed by a fizzing sound.
Basically it sounded like some condensation was dripping on a hot surface, like water drops on a stovetop.

Here’s a video I took as soon as I saw it:
https://www.youtube.com/watch?v=96QIrm6SpjM

As you can see in the video, looks like something failed (look at the burnt zip-tie) and overheated.

I haven’t noticed the issue since, everything seems to be working normally.

Can you give me your opinion on what could be happening and the recommended steps to repair it?

TIA!

2

It just looks like a normal defrost sequence to me. The fridge may have been worked on before, but they all make the water dripping on defrost element sound, it’s a hot element.
If it’s running good, I wouldn’t worry.