Susan O Blacksburg , VA January 31, 2017 Appliance: Whirlpool Washer WFW9200SQA12 Whirlpool Washer Wfw9200sqa12: The water pressure switch threw an error and water level was very low. How to replace Washer Water Level Pressure Switch. I first removed the old one by turning it 90° which enable it to snap out from the frame. Disconnected the hose and wiring harness. It was a very simple matter of reversing these steps to get the new one in place. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes