Automatic mode fails
In case of you detect any strange behavior of the wrench, a new learning cycle could be performed to adapt the pump to the new working conditions (oil temperature, length of hoses etc.) or simply due to a microcontroller disprogramming. Simply unplug and plug the pump in again to reset the memory and perform the learning cycle again.
Also there is a power switch on the left side of the control box that can be operated to restart the controller instead of unplug/plug the pump:
