Repair guides and support for top and front loading Whirlpool brand washers.

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not draining properly SUD notification

My whirlpool DUET Steam front load washer suddenly will not drain properly. F21 prompt or SUD prompt is flashing.

any insight is appreciated!

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The Whirlpool washer error code F21 means the washing machine has a “water draining issue”, meaning the drain pump itself, or the drain hose is clogged and the washer is having problems draining the water out. In other words, the washer is taking too long to drain the water out of the tub.

This could be caused by using too much detergent or not using High Efficiency (HE) detergent. The washer will not be able to spin out water with the excess suds. When "Sud" or "Sd" is displayed, the washer automatically extends the rinse time to remove the excess suds

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