PPP clicking noise

Hi all. I have bought the PPP a few years ago and have been very satisfied with the product. However, My unit started having this clicking sound yesterday and it just wouldn’t go away. The incessant clicking is driving me nuts and I googled about the issue and apparently it is a common problem with the PPP.

Unfortunately I live in Taiwan so shipping the unit back to the U.S. is out of the question because of the shipping fees; has anyone come across a solution for the problem that I can administer myself or get someone to fix it locally?

Thank you!