James W Vevay , IN August 14, 2023 Appliance: Whirlpool Washer WFW9200SQ00 Whirlpool Washer Wfw9200sq00: F21 and suds code. How to replace Washer Drain Pump Assembly. Relatively easy repair, in a very awkward position. My dryer is stacked on top of the washer and could not be tilted back. I had to initiate repair laying on the floor. Factory hose clamps were impossible to reach until the electric wire bundle was removed and the pump was dislodged from its mount. During installation I strongly recommend discarding the factory hose clamps and using auto style hose screw clamps. There were NO installation instructions provided with the pump, however there are numerous videos available. MAKE SURE YOU ORDER THE CORRECT PUMP, THERE ARE SEVERAL VARIATIONS. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes