Sorry good people....
I no longer repair TCs or PSUs.
I will FULLY support any warranty returns. When I say FULLY, I mean you will pay nothing at all, if within the UK.
I even refund the postage.
In over 670 TC and PSU repairs, I have only had 3x warranty returns.
One unit repaired over 5 years ago, needed to be fixed again (full of dust and had overheated).
The re-repair was modest, about £25 I think...