All of the US based ads look way to shady for me. Thats why I want to send it to a bitmain repair center in the US.
Zeusbtc is a well-known site here on the forum where you can able to buy parts of any ASIC machine and partner with trusted repair companies.
They have a list of US-based repair shops look at this link
https://www.zeusbtc.com/RepairCenter/USA/