Noise of the Saris H3 smart trainer

Saris H3 noise is like  to a hammer knocking inside.

You also have this problem on your Smart trainer. Please enter your comment. Unity is strength

We believed the message from the Saris ad but apparently something went wrong with the design of the Smart Trainer H3.

Saris Smart Trainer H3
Saris Smart Trainer H3

Why are so many users submitting complaints online with posts and videos about the “TOC TOC TOC” the annoying noise that H3 emits?