The laundry is unevenly distributed or has rolled up.
Untangle the laundry and remove a few items if necessary.
Switch the tumble dryer off and then on again.
Start a program.

0:00 lights up on the tumble dryer display and the end of the program has been canceled; a signal sounds.
Untangle the laundry and remove a few items if necessary.
Switch the tumble dryer off and then on again.
Start a program.