My washer won't complete the final spin cycle. It

My washer won't complete the final spin cycle. It goes through the wash and drain OK but won't spin, clothes are soaking wet. I removed the drain pipe and made sure it was not blocked, also removed and checked the other drain pipes, nothing was blocking them. When I set the cycle to "Drain/Spin" some water drains out but the washer does not spin, the indicator lights are "No spin" and "Door Lock." Any ideas?