How to Troubleshoot & Replace Whirlpool AP6017783 / WPW10249845 Water Level Pressure Switch

YouTube, water level sensor, cleaned drain basket 

I replaced the pressure sensor on the unit 

Replaced the switch and fixed the problem. 

I replaced the water inlet flowmeter and presently in three loads of washer has not presented the fault. The whole replacement process was less than 30 minutes. I have not replaced the switch-WI yet still waiting for the replacement part. 

I called looking for a replacement part after finding out that the store where the machine came from was unable to help me. The part was out of production but within twenty seconds the virtual help desk on this site found me a replacement part for the original. It installed easily and my problem is resolved. I am very pleased