When the printer UM2+ starts heating up the printbed OR printhead it shuts down and restarts.
Power supply is the Meanwell GST220A24-R7B (9.2A, 221W max (see pic added)
Next thing i tried:
raise temp for only the bed manually in the advanced menu it shuts down.
raise temp for only the nozzle manally in advanced menu it shuts down also.
When i raise the temperature by 2°C, wait utill it get this +2°C, raise it again in steps of 2°C it doen't shut down.
Also when it shuts down i hear a click in that small white box (relais?)