Hi.
The problem can be a defective timer control, but before replacing timer all the other parts must be tested. Timer is expensive and it is not easy to be tested directly.
Tell the technician to:
1) Open the control panel held by screws and look for the sealed envelope with the diagnostic tech sheet. If the tech sheet is in there you can run a diagnostic.
2) Check height and setting of the drain hose at the back to ensure that there is no siphoning because of hose incorrect elbow height (water will go back inside the tub and cause machine jamming if the hose is not set at the correct height specified in the manual- which is from 60 to 100 cm).See:
MARGHERITA3) Check drain and empty water from tub. Access the hose connected to drain pump (at the bottom of the washer), remove blockage and empty water).
4) Check inlet (this is the same as older machines). Check that inlet valve is opening, test valve using an Ohm meter to ensure that the solenoid inside the valve has continuity (low Ohms no infinity).
5) Test or replace the pressure switch. The part is tested reading Ohms on switch contacts with tub empty and full.
If the technician still does not find a problem after testing all that, then the timer may be defective. A definitive test on the timer is done reading voltages while machine cycle is on.
Regards.
Ginko.