Hoover Washing Machine Error E21
⚡ Quick Answer: The Hoover washing machine error E21 indicates a drainage issue where the machine fails to pump out water effectively. Symptoms typically include wate... ✅ DIY Fixable
What Does Error E21 Mean?
The Hoover washing machine error E21 indicates a drainage issue where the machine fails to pump out water effectively. Symptoms typically include water remaining in the drum, unusual sounds during the spin cycle, and the program halting before completion. Common causes are a clogged drain pump filter or debris in the drainage system, a faulty drain pump impeller, or anomalies with the pressure switch or water level sensor.
Common Symptoms:
- Water not draining from the drum
- Error appears during or after a drain/spin cycle
- Program stops before completion
- Water remains in drum after cycle
Possible Causes
- Clogged drain pump filter or debris in drainage system (medium)
- Faulty or blocked drain pump impeller (medium)
- Pressure switch / water level sensor anomaly (low)
How to Fix Error E21
DIY Fix Check and clean drain pump filter and hoses
- Unplug the washing machine from mains power.
- Open the bottom front flap or access panel to locate the drain pump filter.
- Place a tray/towel to catch water and slowly unscrew the filter cap.
- Remove any debris, lint, coins or foreign objects from the filter.
- Inspect the drain hose for kinks or blockages and clear them.
- Reassemble the filter and panel, plug the machine back in and test a drain cycle.
Technician Only Inspect and test drain pump and sensor components
- Disconnect power and water supply.
- Remove the back or bottom panel to access the drain pump assembly.
- Manually check the pump impeller for blockage or damage; remove debris if found.
- Test the pump motor electrical continuity and operation; replace the pump if faulty.
- If drainage components are functioning and error persists, diagnose pressure switch/water level sensor and associated wiring.
- Replace defective parts as necessary (pump, sensor, or wiring harness).
Parts needed: Drain pump assembly, Pressure/water level sensor (if applicable), Hoses and clamps
- If you are unable to safely access or diagnose drainage components
- If the error persists after cleaning and replacing obvious parts
- If there is water leakage, electrical issues, or unusual noises during operation
Next step
Choose the next step for E21
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
- Typical part-only price
- $35 - $80
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Pressure Switch
Detects the water level inside the tub and signals when to start or stop filling.
Model-compatible Washing Machine parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Washing Machine Cleaner Tablets
Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.
Braided Washer Inlet Hoses
A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.
Washer Drain Hose Holder
Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does E21 error mean on Hoover washing machine?
The E21 error indicates a drainage issue where water fails to drain from the drum, often accompanied by unusual sounds.
Can I fix Hoover washing machine E21 error myself?
Yes, you can check and clean the drain pump filter and hoses by following simple DIY steps.
How much does it cost to fix E21 error?
Repair costs for the E21 error can range from ¥5,000 to ¥20,000+, depending on parts and labor.
When should I call a technician for E21?
Call a technician if you cannot access drainage components, the error persists after cleaning, or if you notice water leakage or electrical issues.
Data last verified: 2026-07-31
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