Ariston Dishwasher Error A05

⚡ Quick Answer: The Ariston dishwasher error A05 indicates a malfunction in the drain pump, often linked to a pressure switch issue. This error typically presents wit... ✅ DIY Fixable

What Does Error A05 Mean?

The Ariston dishwasher error A05 indicates a malfunction in the drain pump, often linked to a pressure switch issue. This error typically presents with symptoms such as the dishwasher stopping shortly after starting, failure to progress through the washing program, and abnormal water filling or sensing behavior. Checking and resetting the pressure switch may resolve the issue, but if symptoms persist, further inspection and testing may be necessary.

Common Symptoms:

  • Dishwasher stops soon after starting
  • Program doesn’t progress
  • Error code A05 displayed on panel
  • In some cases water sensing or filling behavior may be abnormal

Possible Causes

  • Pressure switch (hydrostat) has not been reset or is malfunctioning (medium)

How to Fix Error A05

DIY Fix Basic checks for pressure switch issue

  1. Turn off and unplug the dishwasher before inspecting.
  2. Ensure the dishwasher is properly leveled on the floor.
  3. Check for visible kinks or damage in the small hose connecting the pressure switch to the tub (if accessible).
  4. Clean any visible debris around the bottom of the dishwasher that could obstruct the hydrostat or float areas.

Technician Only Inspect and test pressure switch and hydrostat system

  1. Disconnect power and remove lower kick panel to access the pressure switch and its hose.
  2. Test pressure switch continuity with a multimeter according to service manual specs.
  3. Clean or replace the pressure switch hose if blocked or collapsed.
  4. Replace the pressure switch if testing indicates failure.

Parts needed: Pressure switch (hydrostat), Pressure switch hose

🛑 When to Call a Pro:
  • If basic hose/visual checks do not clear the error
  • If pressure switch tests fail or internal access is required.
  • If there is water leakage or electrical faults observed.

Next step

Choose the next step for A05

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

Check during diagnosis

Most relevant component to inspect

Pressure Switch

Detects the water level inside the tub and signals when to start or stop filling.

Typical part-only price
$25 - $65
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.

Find a part that fits my model

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.

Model number required

Model-compatible Dishwasher 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.

Find a part that fits my model

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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.

Maintenance supply

Dishwasher Cleaner and Descaler

Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.

View maintenance supply
Maintenance supply

Braided Dishwasher Inlet Hose

For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.

View maintenance supply

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 A05 error mean on ariston dishwasher?

The A05 error indicates a malfunction in the drain pump, often linked to the pressure switch not resetting or malfunctioning.

Can I fix ariston dishwasher A05 error myself?

Yes, you can perform basic checks like inspecting the pressure switch and ensuring hoses are clear and undamaged.

How much does it cost to fix A05 error?

The estimated repair cost for the A05 error is medium, covering both parts and labor.

When should I call a technician for A05?

Call a technician if basic checks do not resolve the error, or if internal access is required for further inspection.

Sources & References

Data last verified: 2026-07-31

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