Only drains after power rest and leaving lid open

Your conclusion that the drain pump works is not substantiated by your statement that it takes an hour to drain. Rather it shows that the pump is not working and the drain may be partially clogged. Here are the things you need to look at:

Cause 1

Drain Pump

Sometimes, small objects or articles of clothing can get caught in the drain pump. To determine if anything is blocking the drain pump, remove the drain pump and check the pump for obstructions. If the drain pump is clear of obstructions, but is still noisy during the drain cycle, replace the drain pump.

Cause 2

Clogged Pump or Hose

Sometimes, socks and other small articles of clothing can get into the drain system and clog the pump hose or the pump itself. Remove the hoses from the pump and check for any obstructions.

Cause 3

Lid Switch Assembly

The lid switch assembly prevents the washer from spinning when the lid is open. If the lid switch assembly fails, the washer will not drain. To determine if the lid switch assembly is defective, use a multimeter to test each of the lid switches for continuity. If a lid switch does not have continuity, replace it.