Easywider
Simple is the way
That cap sensor is finnicky for me too. I just turn off the cap sensor and pulse to pre-melt. If you want to keep using it, I find it seems to register much better in a specific cap orientation.
You can usually fix the cap sensor with a strong magnet. I use one of my anvil magnets it will flip the switch when it gets the sensors reversed. The one time the magnet didn't work for me, I pulled the tub gasket and found oil on the sensors underneath. A quick wipe and back in action.
Do note: the gasket requires a certain amount of patience to work it back in place properly.