try unplugging the machine from the wall for 10 mins and start it again, make sure water is on and water pressure from tap is ok, if the error persists the evaporator sensor is out of order and will need to be replaced
try unplugging the machine from the wall for 10 mins and start it again, make sure water is on and water pressure from tap is ok, if the error persists the evaporator sensor is out of order and will need to be replaced