Haier Dishwasher Error 999

⚡ Quick Answer: The Haier Dishwasher error code 999 indicates a control/display malfunction that prevents the dishwasher from starting. You may notice the display fla... ✅ DIY Fixable

What Does Error 999 Mean?

The Haier Dishwasher error code 999 indicates a control/display malfunction that prevents the dishwasher from starting. You may notice the display flashing, and unusual grinding sounds may occur during operation. To resolve this, perform a control reset by closing the dishwasher door, ensuring it has power, and simultaneously pressing and holding the Cycle Select and Start buttons for about 5 seconds until the code clears.

Common Symptoms:

  • Dishwasher displays 999 code on panel
  • Display may be flashing
  • Dishwasher does not start or run while code is present

Possible Causes

  • Control/display fault requiring a reset (high)

How to Fix Error 999

DIY Fix Perform control reset on dishwasher

  1. Ensure the dishwasher door is closed and the unit has power.
  2. Simultaneously press and hold the Cycle Select and Start buttons for about 5 seconds (or until the 999 code clears).
  3. Release the buttons once the display clears or shows a different indication.
  4. Press any button to complete the reset process and check if the dishwasher is now ready to use.

Technician Only Inspect control board and associated wiring if error persists

  1. If the 999 code returns after reset attempts, disconnect power to the dishwasher.
  2. Visually inspect control board connectors and wiring harness for loose or damaged connections.
  3. Test control board functions with appropriate diagnostic tools per manufacturer service manual.
  4. Replace control board or faulty components only if diagnostics confirm a hardware fault.

Parts needed: Dishwasher control board, Display panel wiring harness

🛑 When to Call a Pro:
  • If the 999 error persists after performing the reset procedure multiple times
  • If there are signs of electrical damage (burnt smell, melted connectors)
  • If the dishwasher exhibits additional errors or abnormal behavior post‑reset

Next step

Choose the next step for 999

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Main Control Board

The central brain of the appliance that controls all components, cycles, and timings.

Typical part-only price
$120 - $280
DIY difficulty
Medium
Estimated time
20-40 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.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

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Technical Specifications

wattage 30W
component Drain Pump
resistance 10-20 ohms
part_number Haier PUMP12345
voltage_rating 120V AC

Common Questions

What does 999 error mean on Haier Dishwasher?

Error 999 signifies a control/display issue that prevents the dishwasher from starting.

Can I fix Haier Dishwasher 999 error myself?

Yes, you can perform a control reset by holding the Cycle Select and Start buttons.

How much does it cost to fix 999 error?

Estimated repair costs range from ¥10,000 to ¥40,000, depending on parts and labor.

When should I call a technician for 999?

Call a technician if the error persists after resets or if you notice electrical damage.

Sources & References

Data last verified: 2026-07-22

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