Zanussi Dishwasher Error I70

⚡ Quick Answer: The Zanussi Dishwasher error I70 indicates a fault with the temperature sensor (NTC) located in the sump or heater area. This error often manifests as... ✅ DIY Fixable

What Does Error I70 Mean?

The Zanussi Dishwasher error I70 indicates a fault with the temperature sensor (NTC) located in the sump or heater area. This error often manifests as the dishwasher displaying I70 on the control panel, accompanied by inadequate heating or failure to complete the heating cycle. Unusual noises during operation may also be present, suggesting issues with the drain pump.

Common Symptoms:

  • Dishwasher displays I70 on the control panel
  • Dishwasher may not heat correctly or complete heating cycle

Possible Causes

  • Faulty temperature sensor (NTC) in sump or heater area (high)
  • Loose/corroded wiring or connection to NTC sensor (medium)

How to Fix Error I70

DIY Fix Basic checks and reset

  1. Turn off and unplug the dishwasher from the power supply.
  2. Clean the filter and sump area to remove debris or foam that could affect sensors.
  3. Plug the dishwasher back in and start a normal cycle to see if the I70 clears.

Technician Only Inspect and test temperature sensor (NTC)

  1. Disconnect power to the dishwasher.
  2. Access the sump/heater assembly to locate the NTC temperature sensor.
  3. Inspect the sensor connector for corrosion or looseness and clean/resit if needed.
  4. Measure the NTC resistance with a multimeter and compare to the manufacturer’s specification; replace if open/short or out of range.

Parts needed: NTC temperature sensor, sensor wiring harness/connectors

🛑 When to Call a Pro:
  • If the error persists after basic cleaning and reset
  • If the temperature sensor tests indicate a fault requiring part replacement
  • If there are complex wiring issues beyond basic connector cleaning

Technical Specifications

wattage 50W
component Drain Pump Assembly
resistance 30-50 ohms
part_number Zanussi 1240000001
voltage_rating 230V AC

Common Questions

What does I70 error mean on Zanussi Dishwasher?

I70 error indicates a temperature sensor fault, resulting in heating issues and unusual noises.

Can I fix Zanussi Dishwasher I70 error myself?

Yes, you can perform basic checks, reset, and clean filters to attempt to resolve the issue.

How much does it cost to fix I70 error?

Repair costs range from $30–$120 for parts, plus additional service time.

When should I call a technician for I70?

Call a technician if the error persists after basic troubleshooting or if complex wiring issues arise.

Sources & References

Data last verified: 2026-03-18

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