My lg washer is not letting out the water after washing

HI, you will need to check the following below to combat this issue.

1. Clogged drain line or water pump
Check to see if there's something stuck inside the pump or the drain hose connected to the pump (pump is usually located at the bottom and towards the back of the washing machine).

2. Water Pump
If the drain line isn't clogged, you may have a problem with the water pump such as a frozen pulley or a broken impeller. If that's the case replace the water pump. Note: if you have a belt driven washer, check the belt(s) for cracks, as this would be a perfect time to replace the belt(s) if needed.