How to Troubleshoot & Replace Whirlpool AP6023357 / WPW10605427 Drain Pump

Replaced with a new one, 

Change drain pump and water level sensor 

Installed new drain pump. 

Replaced level sensor & pump 

I replaced the pump. 

I checked the coin filter first, then cleaned out the drain hose, still no luck with the problem so replaced the pump. The part arrived within 36 hours from Appliance Parts Pro. The repair was completed later that day. Have run 3 loads and so far so good. 

Replaced the drain pump valve. ordered the whole assembly but only replaced the solenoid assembly. easy fix with immediate success. 

Cleaned all the hoses, and replaced drain pump assembly. Seems to be working fine now! Thanks to Appliance parts pros! 

Narrowed failure to one of two parts. Failed washer drain and/or failed water pressure sensor. This is after I cleaned all potential sources of drain blockage including drain filter, water sensor and tubing and drain hoses (from pump exit to wall drain). Purchased both a new pump and sensor. 

Replaced with this part