Dishwasher displays F4 and may not drain properly at the end of the cycle.

Safety first: Unplug the appliance and protect the floor from water.

• Clean filters and sump: Remove and clean all filters and inspect the sump for debris.
• Check drain hose and siphon: Detach the hose from the sink siphon and flush it. Clean the siphon and ensure there is no grease blockage.
• Verify installation: Ensure the drain hose is installed at the correct height and is not submerged in standing water in the siphon.
• Test drain: Run a drain-only or cancel program and observe how quickly water leaves the tub.
• If F4 persists: The drain pump may be weak or failing and should be checked by a technician.