Hello, i got an old edgebander
HOLZ-HER TRIATHLON 1424/360

Produced in 1999
I always use it as a backup machine
It was working fine 5-6 Months ago. Today i tried to start it and i got an error

"Trimmer #1 Overload"
Usually when a motor overloads i check the motor remove any sand or any garbage then i go to the electric bay and there must be an electrical switch that got turned off because the motor couldnt start, but sadly i do not see any electrical switch to Off right now, the machine is all clean.

Iam really sorry for my bad english
Please help me if you can