My issues was i was getting enough water, but still getting the F/H error.
Tools I used were a torx head screwdriver, small flat head screwdriver and a pair of channel locks and a 5 gallon bucket
Disconnect the power. Using a small torx head screwdriver, Removed the top and the front control panel. I replace the front door boot too, so i had the bottom off as well. Plenty of you-tube videos on this.
Check the drain. i’ve had a sock in there before and got the same error.
Pull the hoses from the back of the unit and check water flow.
Check and clean (if needed) the screens at the intake valve. I used the small flat head screwdriver to get them out.
i disconnected the washer dispenser inlet hose from the intake valve and also pulled the nozzle from drawer assembly. There is a tab that holds it in place. i used the flat head to pry it up. Be careful not to break it. i also disconnected the wiring from the water intake valve and the flow meter and labeled them. Blow through the hose. you should be able to hear the flow meter spin freely. If not, something could be blocking it. Once it is all clear, i reconnected everything turned on the power and started a cycle. I left the dispenser drawer out and saw plenty of water coming out. have towel to kind of block the front from water coming out. '''HInd-sight, I would have done this first.'''
Since everything is good to this point. I looked to the water level pressure switch. Since i had the machine full of water, I turned on the drain cycle. I saw suds coming out of the water level pressure hose. there was a small hole in it. Since it was near the switch itself, i was able to cut out the hole and reattach the hose.
problem solved.