DUPLO DC10000s tower. Error E-3-1.

[Gintaris L]

Have the problem with my DUPLO DC10000s tower. Error E-3-1. After some minutes of shutdown it works for some time. Sometimes it works for 2-3 Hours, sometime for few minutes.
Main motor ?
Inverter ?
Power supply?
Have somebody solution for it?

 

[Gintaris L]

I found the problem.
Now its running as new one.

 

[Gintaris L]

Relay P.W.B. unit 96G-8010 near the main motor had 2-3 "cold "contacts.