Guess I need to pull off the hoses to check the water supply. Book said:

Shuts OFF During Final Rinses:
The machine control board is programmed to
allow a maximum continous fill time of six
minutes or an accumulated fill time of 8 minutes
for each full wash cycle. If the required
fill time exceeds the time limit, the washer will
shut down. This is to prevent flooding in the
event there is a loose hose clamp or damaged
air dome hose. Check the incoming water lines
for a minimum pressure of 20 psi. If lower,
the customer can use smaller clothes loads
and reduce the pressure to 10 psi. An alternative
solution would be to change the plastic
inlet screens to metal screened washers and
remove the nozzle extender found in the water
valve inlet hose near the dispener inlet