Once the "light wash" option is selected and the wash cycle begins, what is the time duration of this cycle? Because we selected light wash and the cycle continued for more than 20 minutes, and we manually depressed the "reset" selection. So, we do not know if the dishwasher timer is malfunctioning or if this normal. Because we did not continue beyond the 20 minutes, we do not know if we have a malfunctioning timer or something else needs to be repaired.