Replaced everything, Now what?

You know I really wouldn't use that repairman again. Ask him why he replaced the most expensive part. He did not leave the old part did he.

Show him a picture of a hole in the ground and your behind and see if he knows the difference.

Request a refund. If he doesn't give it to you, leave him a bad review on the internet.

This was my original answer to this problem and any competent repairman could find by just doing a web search:

The F35 error code indicates an analog pressure sensor error. The analog pressure sensor is the component that detects water level in the washer tub. This error can usually be cleared but it will occur again if the main control board still detects a problem with the signal from the analog pressure sensor. This error code can be caused by a problem with the air pressure tube between the bottom of the washer tub and the analog pressure sensor. If you are able to unplug the washer and check this air pressure tube, you may be able to resolve this problem. The analog pressure sensor can be accessed by pulling off the top panel of your washer. Remove the screws at the very back of the top panel and then pull it back slightly and then up and off of the washer. The analog pressure sensor is Key 38 in the first image below. With the washer unplugged, check the connection of the air pressure tube to this component. Check the entire air tube down to its connection to the bottom of the washer tub. You will likely need to remove the back panel of the washer to check the entire air pressure tube. If you find a kink, tear, hose or loose connection in the air pressure tube, then this is the likely cause of your F35 error code. If the air pressure tube appears to be okay, then you will likely need to replace the analog pressure sensor. If the problem still exists after replacing this component, then the main electronic control board for the washer will need to be replaced. If you are not completely confident in your technical ability to safely access and check these components, I recommend calling a service technician to diagnose and repair the washer.

Here is a very good answer on the SUD error which can involve the air pressure tube and/or sensor:

Why am I getting a SUD error message?

The F20 error code happens if the pressure switch has not tripped after 6 minutes.

Next time contact us before calling or repairing anything. The price is right, the site is manned by kind hearted volunteers who only want to help people.