This is all sounds very familiar. I had a similar thing occur with an electric shower. It would trip the fuse at the fuse box intermittently for no apparent reason, even when there was no on else at home using any other electrical appliances. On these occasions there was no-one to yell at to reset the breaker at the fuse box while you dodged a jet of cold water.
But back to your spin dryer. The solution may be the contact breaker at the fuse box. With our shower, it turned out that it was drawing 29.6 amps on a 30 amp contact breaker.
If someone in another household on the same mains circuit went for shower at the same time, our shower would trip the fuse until they were done. The solution was to replace the 30 amp contact breaker with a larger 40 amp contact breaker.
However, consult a qualified electrician before messing with your mains fuse box.
But back to your spin dryer. The solution may be the contact breaker at the fuse box. With our shower, it turned out that it was drawing 29.6 amps on a 30 amp contact breaker.
If someone in another household on the same mains circuit went for shower at the same time, our shower would trip the fuse until they were done. The solution was to replace the 30 amp contact breaker with a larger 40 amp contact breaker.
However, consult a qualified electrician before messing with your mains fuse box.