Drainage issues can be caused by a blocked filter, drain hose, pump or another fault. Inspection is needed to identify the cause.
Ask About This ProblemRecord when the problem happens, any unusual sounds and any error code shown on the display.
Follow only the basic checks recommended for your exact model. Do not dismantle electrical or water-connected components.
If the problem persists, share the brand, model, location and symptoms to check service availability.