Zanussi Dishwasher Error I30
⚡ Quick Answer: The Zanussi Dishwasher I30 error indicates a leak detected in the base of the appliance, activating the anti-flood protection system. This can cause t... ✅ DIY Fixable
What Does Error I30 Mean?
The Zanussi Dishwasher I30 error indicates a leak detected in the base of the appliance, activating the anti-flood protection system. This can cause the dishwasher to stop mid-cycle, trigger continuous draining, and display a flashing LED pattern. Possible causes include an internal water leak, over-foaming from incorrect detergent use, or blocked spray arms leading to water seepage. Immediate action is required to prevent further damage.
Common Symptoms:
- Dishwasher stops mid‑cycle
- Continuous drain pump running
- Beeping or LED flashing pattern (3 flashes)
- Water in the base pan/tray
- Error I30 displayed on control panel
Possible Causes
- Internal water leak detected by anti‑flood/float sensor (high)
- Over‑foaming from excess or incorrect detergent leading to water infiltration into base (medium)
- Blocked spray arms or improper loading causing water to be deflected onto seals and leak paths (medium)
How to Fix Error I30
DIY Fix Immediate user actions to diagnose/clear transient issues
- Turn off water supply to the dishwasher
- Disconnect dishwasher from power mains
- Check and clean filters, spray arms and sump area
- Ensure dishes are loaded correctly and do not block spray arms
- Leave dishwasher off and closed with water supply off overnight to allow moisture to evaporate
- After drying, reconnect water and power and attempt a new cycle
Technician Only Technician inspection and resolution
- Pull dishwasher out and inspect base pan for water accumulation
- Check and test flood safety float/ moisture sensor operation
- Inspect and replace door gasket/ seals if worn or damaged
- Check hoses, joints, sump and pump assembly for leaks or cracks
- Repair or replace defective internal components causing leak
- Test proper operation after repairs
Parts needed: Door gasket/seals, Float switch/moisture sensor, Hoses and connectors, Pump/sump components
- If water is found in the base pan on inspection
- If basic user actions do not clear the error
- If seals, sensors, or internal components are suspected faulty
Next step
Choose the next step for I30
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
Door Gasket
Creates a watertight seal around the door to prevent leaks during operation.
- Typical part-only price
- $45 - $110
- DIY difficulty
- Medium
- Estimated time
- 30-60 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.
Float Switch
Detects the maximum water level to prevent overflow and potential flooding.
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 I30 error mean on Zanussi Dishwasher?
The I30 error means a leak was detected, activating the anti-flood protection system.
Can I fix Zanussi Dishwasher I30 error myself?
Yes, you can turn off the water supply, disconnect power, and check filters and spray arms.
How much does it cost to fix I30 error?
The repair cost typically ranges from $150 to $500+, depending on parts and labor.
When should I call a technician for I30?
Call a technician if water is found in the base, or if user actions do not resolve the error.
Sources & References
Data last verified: 2026-07-31
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