Washer-dryer hums but does not drain; water remains in drum and no error code appears.

Safety first: Unplug the appliance and prepare towels for water spillage.

• 1. Access and drain: Open the lower service flap, use the emergency drain hose if present, then remove the pump filter.
• 2. Clear obstruction: Reach into the pump cavity and remove any foreign objects. Ensure the impeller spins freely.
• 3. Inspect impeller: If the impeller is loose on the shaft or damaged, replace the drain pump.
• 4. Reassemble and test: Refit the filter securely and run a drain/spin cycle.