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

  1. Turn off water supply to the dishwasher
  2. Disconnect dishwasher from power mains
  3. Check and clean filters, spray arms and sump area
  4. Ensure dishes are loaded correctly and do not block spray arms
  5. Leave dishwasher off and closed with water supply off overnight to allow moisture to evaporate
  6. After drying, reconnect water and power and attempt a new cycle

Technician Only Technician inspection and resolution

  1. Pull dishwasher out and inspect base pan for water accumulation
  2. Check and test flood safety float/ moisture sensor operation
  3. Inspect and replace door gasket/ seals if worn or damaged
  4. Check hoses, joints, sump and pump assembly for leaks or cracks
  5. Repair or replace defective internal components causing leak
  6. Test proper operation after repairs

Parts needed: Door gasket/seals, Float switch/moisture sensor, Hoses and connectors, Pump/sump components

🛑 When to Call a Pro:
  • 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

Technical Specifications

wattage 20W
component Water Inlet Valve
resistance 500-1500 ohms
part_number Zanussi 124000000
voltage_rating 230V AC

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: 2026-03-18

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