This is nothing more than a Duet machine in disguise. All failures can be traced using your tech sheet inside the lower panel taped to the wall. Most likely, you are having issues with the water level in the tub. If the pressure switch is not satisfied that water is filling due to a clogged airline tube etc., then the machine will not advance thru the wash. Procedures for checking this switch are in the tech sheet as well, but I usually open the top and blow back thru the airline to see if it is stopped up.
No error codes, such as ld?