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

  1. Unplug the washing machine from mains power.
  2. Open the bottom front flap or access panel to locate the drain pump filter.
  3. Place a tray/towel to catch water and slowly unscrew the filter cap.
  4. Remove any debris, lint, coins or foreign objects from the filter.
  5. Inspect the drain hose for kinks or blockages and clear them.
  6. 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

  1. Disconnect power and water supply.
  2. Remove the back or bottom panel to access the drain pump assembly.
  3. Manually check the pump impeller for blockage or damage; remove debris if found.
  4. Test the pump motor electrical continuity and operation; replace the pump if faulty.
  5. If drainage components are functioning and error persists, diagnose pressure switch/water level sensor and associated wiring.
  6. Replace defective parts as necessary (pump, sensor, or wiring harness).

Parts needed: Drain pump assembly, Pressure/water level sensor (if applicable), Hoses and clamps

🛑 When to Call a Pro:
  • 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

Technical Specifications

wattage 100W
component Drain Pump
resistance 20-40 ohms
part_number HWD-12345
voltage_rating 230V AC

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: 2026-04-14

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