Ariston Dishwasher Error A02
⚡ Quick Answer: The Ariston dishwasher error A02 indicates a malfunction related to the water filling and heating systems. This error often results in the dishwasher ... ✅ DIY Fixable
What Does Error A02 Mean?
The Ariston dishwasher error A02 indicates a malfunction related to the water filling and heating systems. This error often results in the dishwasher failing to fill with water or not heating the water to the set temperature. Users may notice the program stopping shortly after starting, accompanied by unusual noises during operation. Common causes include issues with the water inlet supply, such as a blocked valve or hose, and faults in the heating system's components like the heating element or thermostat.
Common Symptoms:
- Dishwasher fails to fill with water
- Dishwasher does not heat water to set temperature
- Program stops shortly after start
Possible Causes
- Water inlet supply issue (valve/hose/filter blocked) (medium)
- Heating system not reaching temperature (element/thermostat/thermistor fault) (medium)
How to Fix Error A02
DIY Fix Check water supply and inlet
- Ensure the kitchen water tap feeding the dishwasher is fully open.
- Inspect the inlet hose for kinks or bends that could restrict water flow.
- Clean the inlet hose filter and dishwasher water inlet valve filter screens.
DIY Fix Basic power reset
- Turn off the dishwasher using the control panel.
- Disconnect power (unplug or turn off breaker) for 5–10 minutes.
- Reconnect and restart to see if the error clears.
Technician Only Inspect and test heating components
- Test the heating element for continuity and proper operation.
- Check temperature sensor/thermistor and its wiring for faults.
- Verify control board heating circuit is functioning correctly.
Parts needed: heating element, thermistor/temperature sensor, control board
Technician Only Diagnose water inlet valve and fill system
- Use diagnostic tools to check inlet valve operation and signal.
- Inspect and possibly replace the water inlet valve if defective.
- Verify water pressure at connection meets dishwasher requirements.
Parts needed: water inlet valve, pressure sensor
- If after checking supply and basic reset the A02 error persists
- If internal component tests (valve, heating element, sensors) indicate faults
- If you are uncomfortable performing electrical diagnostics
Next step
Choose the next step for A02
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Heating Element
Heats the water or air inside the appliance to the required temperature.
- Typical part-only price
- $40 - $95
- DIY difficulty
- Medium
- Estimated time
- 30-45 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.
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.
Thermistor
Measures precise temperature changes and sends resistance feedback to the control board.
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
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.
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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.
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.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
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 A02 error mean on ariston dishwasher?
A02 indicates issues with water filling or heating, leading to program stoppage.
Can I fix ariston dishwasher A02 error myself?
Yes, check the water supply, inspect hoses, and perform a basic power reset.
How much does it cost to fix A02 error?
Estimated repair costs range from $80 to $250, depending on parts and labor.
When should I call a technician for A02?
Call a technician if the error persists after checking the supply or if internal components are faulty.
Sources & References
- Error codes for dishwashers Ariston (table) (community)
Data last verified: 2026-07-31
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