How to replace fuses on Wadia S7i?

Has anyone done replacing the fuses inside the Wadia S7i or any Wadia product yourself? I have a S7i which stopped working one day. I'm suspecting it's the fuse that needs to be replaced but I'm not sure if I should send it to Wadia instead. I've contacted Wadia support but no reply for more than a week.

I'd be much appreciated if anyone can help, thanks
Pull your power cord out of the back of the S7i. The power switch, fuse holder and power cord connector are all together in the same piece. It's just a small rectangular piece that has a small hole to pry it open between the power switch and the power cord connector.