E21
Zanussi
Drain Pump Blocked or Jammed
Washer-dryer attempts to drain but stops with E21; pump may be noisy or jammed, water remains in drum.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Foreign object in pump housing, Damaged pump impeller, Partially blocked sump hose, Faulty drain pump motor winding
How to Fix / Troubleshooting
Safety: Disconnect mains power and prepare for water spillage.
- Clean pump and sump: Remove the pump filter and inspect the pump chamber thoroughly with a torch. Check the sump hose from the tub to the pump for socks, coins, or fabric lodged inside. Remove the hose and flush it if necessary.
- Inspect impeller: Look for broken blades or excessive play on the impeller shaft. A loose or broken impeller requires pump replacement.
- Check wiring: Ensure the pump connector is firmly attached and wires are not burnt or corroded.
- Electrical test: Use a multimeter to measure pump coil resistance. Replace the pump if open circuit or shorted.
After reassembly, run a rinse and spin cycle to confirm proper drainage.
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Repair Difficulty
Medium
3/5
Required Part
Drain Pump Assembly
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