As far as I'm aware there is no additional fuse inside the machine apart from the usual thermal cut-out protection devices.
Have you considered that it may be the wall socket that could be causing the problem? Try plugging your machine into a totally different socket (use an extension lead temporarily to avoid moving the machine) and see if that helps. I've experienced this problem on several occasions where customer's washing machines and dryers have caused the socket to heat up and loosen the connection with the plug. Replacing the wall socket with a high quality brand fixed the issue.
Rupert, February 2020
