The Fill Cap Assembly is an OEM part for GE dishwashers. This assembly includes the cap that covers the opening where rinse aid or other additives are poured into the dishwasher. It ensures that the additives are securely contained and properly dispensed during the wash cycles, contributing to effective cleaning and drying. Over time, the fill cap assembly can become damaged due to regular use, exposure to cleaning agents, or accidental mishandling. A compromised fill cap can lead to leaks or improper dispensing of rinse aid, affecting the dishwasher's performance. Symptoms of a bad fill cap assembly include: Rinse aid or additives leaking from the dispenser The cap not securing properly or coming off easily Improper dispensing of rinse aid Visible cracks or damage to the cap This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.This part fixes the following symptomsWill not dispense detergentPart Number WD12X10284 (AP4390010) replaces WD12X24238, 1472897, AH2351824, EA2351824, PS2351824, WD03X0654, WD12M0076, WD12M76, WD12X0119, WD12X0179, WD12X0234, WD12X0259, WD12X0261, WD12X0319, WD12X0323, WD12X0392, WD12X0400, WD12X0409, WD12X10024, WD12X10037, WD12X119, WD12X179, WD12X234, WD12X259, WD12X261, WD12X319, WD12X323, WD12X392, WD12X400, WD12X409, WD12X5040, WD3X654.