Using Too Much Detergent
More detergent does not necessarily mean cleaner clothes.
Excess detergent can leave residue in:
The drum
Hoses
Detergent drawer
Rubber gasket
Follow the detergent manufacturer’s dosage recommendations based on load size, soil level, and water hardness.
Using Too Much Fabric Softener
Fabric softener can also contribute to buildup, particularly when used frequently or in excessive amounts.
Almost Always Using Cold Cycles
Lower-temperature washing can save energy, but repeated washing without periodic machine cleaning may allow detergent, oils, and other residues to accumulate.
Closing the Door Immediately