Troubleshoing and Dianosing ASIC Miners is a time consuming and technical process. There are many causes for failures, and not all machines can be repaired. The Hashboards are complex units which comprise not just the ASIC chips themselves, but many other circuits and components. Power supply and control board issues are also common and in most cases are replacable.
If you have an ASIC that you beleive has an issue, and are not sure where to start then please get in touch via our email sales@rchobbies.co.nz.