Haier Dishwasher Error A20

⚡ Quick Answer: The Haier Dishwasher error A20 indicates a malfunction in the drain pump, preventing proper drainage. Symptoms include water remaining in the dishwash... ✅ DIY Fixable

What Does Error A20 Mean?

The Haier Dishwasher error A20 indicates a malfunction in the drain pump, preventing proper drainage. Symptoms include water remaining in the dishwasher after a cycle, unexpected stops mid-cycle, and failure to pump out water. This issue is often caused by clogged filters or blockages in the drain system, leading to unusual noises during operation.

Common Symptoms:

  • Water remains in dishwasher after cycle
  • Dishwasher stops mid‑cycle with A20 displayed
  • Water not pumping out

Possible Causes

  • Clogged filters or blockages in drain system (high)

How to Fix Error A20

DIY Fix Check and clear basic drain blockages

  1. Turn off and unplug the dishwasher (or power off at breaker).
  2. Remove bottom rack and access filter assembly.
  3. Clean filters thoroughly under running water, removing food debris.
  4. Inspect visible drain path for obstructions.
  5. Ensure drain hose is not kinked and free of debris.

Technician Only Inspect drain pump and internal drainage components

  1. Disconnect power and remove access panel.
  2. Inspect drain pump for blockage or damage.
  3. Test drain pump motor for proper operation with multimeter.
  4. Replace drain pump if defective.
  5. Verify proper routing and connection of drain hose and check valve.

Parts needed: Drain pump assembly, Drain hose, Check valve

🛑 When to Call a Pro:
  • If after clearing filters and checking hose the A20 error persists
  • If water still not draining and drain pump shows no operation or unusual noise
  • If there is visible water leakage or other errors accompany A20

Technical Specifications

wattage 50W
component Drain Pump Assembly
resistance 10-30 ohms
part_number Haier 302020
voltage_rating 120V AC

Common Questions

What does A20 error mean on Haier Dishwasher?

A20 indicates a drain pump malfunction, leading to improper drainage and water remaining in the dishwasher.

Can I fix Haier Dishwasher A20 error myself?

Yes, you can check and clean the drain filters and hose to resolve the A20 error before calling a technician.

How much does it cost to fix A20 error?

Repair costs range from $50 to $200 for parts, plus labor, depending on the issue.

When should I call a technician for A20?

Call a technician if the A20 error persists after cleaning filters or if the drain pump shows no signs of operation.

Sources & References

Data last verified: 2026-03-09

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