Whe using the washing machine of any cycle recently the door does not open at the end of the cycle. It gets to one minute to go but will not complete the cycle, it just stays on one minute to go. The only way to get it to open is to then set it to drain and it will open after two minutes. I've had the washer dryer for approx a year and had no problems with it until the last week or so. Any help or guidance would be appreicated if anyone else has also expereienced this problem. Thanks.