The dryer turns on but won't start, and the display shows error EH0 — what's the reason?

This could be due to a power supply problem — either over-voltage or under-voltage — probably caused by a power surge that has tripped the dryer into a safety lockout.

In the best case, leaving it unplugged for a couple of hours (we recommend half a day) may allow the machine to resume normal operation.

If not, the power surge may have damaged the electronic control board, which would then need replacing.