Drain pump & check valve — standing water at end of cycle
The single most common Whirlpool dishwasher call. Drain pump motor failure or a stuck check valve in the sump on WDF, WDT, and WDTA units. Symptom: dirty water sitting in the bottom at the end of the cycle. We replace the OEM Whirlpool W11084655 / W10348269 drain pump and inspect the sump check valve in one visit.