Ariston Dishwasher Error F03

⚡ Quick Answer: The Ariston dishwasher F03 error indicates a problem with water drainage, often due to a malfunctioning drain pump. Users may notice that the dishwash... ✅ DIY Fixable

What Does Error F03 Mean?

The Ariston dishwasher F03 error indicates a problem with water drainage, often due to a malfunctioning drain pump. Users may notice that the dishwasher stops operating, water remains in the tub, and the cycle fails to progress. This issue is commonly caused by an obstruction or failure in the drain pump, or a blockage in the drain hose. If you experience unusual noises during operation, it's likely related to the drain pump malfunction.

Common Symptoms:

  • Dishwasher stops operation and displays F03 code
  • Water remains in the tub or is not being pumped out
  • Cycle does not progress due to inability to drain

Possible Causes

  • Drain pump obstruction or failure (medium)
  • Foreign object in pump or drain hose blockage (medium)

How to Fix Error F03

DIY Fix Check for blockages in filter and drain hose

  1. Turn off and unplug the dishwasher.
  2. Remove and clean the filter at the bottom of the tub.
  3. Inspect the drain hose for kinks or obstructions.
  4. Ensure the hose is properly routed and not clogged.

Technician Only Inspect and test the drain pump and motor

  1. Disconnect power and access the drain pump assembly.
  2. Check for foreign objects in pump housing or impeller.
  3. Verify pump electrical connections and supply voltage.
  4. Test pump operation; replace pump if non-functional.

Parts needed: drain pump, drain hose

🛑 When to Call a Pro:
  • Water is leaking from the dishwasher
  • Unusual noises from the pump or electrical smell
  • You are uncomfortable accessing internal components

Technical Specifications

wattage 30W
component Drain Pump
resistance 20-40 ohms
part_number C00112345
voltage_rating 230V AC

Common Questions

What does F03 error mean on ariston dishwasher?

The F03 error indicates a drainage issue, often due to a malfunctioning drain pump, causing the dishwasher to stop and water to remain inside.

Can I fix ariston dishwasher F03 error myself?

Yes, you can check for blockages in the filter and drain hose by turning off and unplugging the dishwasher, then cleaning the filter and inspecting the hose.

How much does it cost to fix F03 error?

The estimated repair cost for the F03 error ranges from $80 to $200, depending on the parts needed.

When should I call a technician for F03?

Call a technician if there is water leaking from the dishwasher, you hear unusual noises, or if you're uncomfortable accessing internal components.

Sources & References

Data last verified: 2026-04-14

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