Guillermo S Chicago , IL March 06, 2017 Appliance: Maytag Washer- Horizontal Axis MAH4000AWW Maytag Washer Mah4000aww: Neptune mah4000 had a no spin but did pump water out but not all of it. How to replace Tub Displacement Switch (Pressure Sensor). I had the problem couple years ago I bypassed unbalance switch it worked fine for a couple years and had the same problem again so ruled out unbalanced switch. Door lock light on and checked made sure wax motor pushed out all the way too the second switch for spin check OK, so took a chance on displacement switch x2. My family loves to over load it and also replaced by passed unbalance switch and boom every thing went back to normal. Its also good to clean every thing when apart. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes