Simpson Dishwasher Error i90

⚡ Quick Answer: The i90 error code on your Simpson Dishwasher indicates a potential malfunction in the drain pump, which may cause unusual noises during operation and... ✅ DIY Fixable

What Does Error i90 Mean?

The i90 error code on your Simpson Dishwasher indicates a potential malfunction in the drain pump, which may cause unusual noises during operation and prevent the dishwasher from draining water properly. To troubleshoot this issue, you can try performing a general reset by turning off the dishwasher, disconnecting it from power, waiting a few minutes, and then reconnecting it to see if the error clears. If the problem persists, further investigation may be required.

Possible Causes

  • Drain Pump
  • Clogged Drain Filter
  • Faulty Control Board

How to Fix Error i90

DIY Fix General Reset Attempt

  1. Turn off the dishwasher and disconnect from power (e.g., unplug or turn off the circuit breaker).
  2. Wait at least a few minutes.
  3. Reconnect power and run any program to see if the code clears.

Technician Only Model‑Specific Source Investigation

  1. Locate and download the exact user/service manual for the specific Simpson dishwasher model showing i90.
  2. Check error code definitions in that manual (if available).
  3. If no definition exists in the manual, contact Simpson technical support for clarification.
🛑 When to Call a Pro:
  • If the i90 code persists after power reset and normal function is impaired, contact Simpson authorised service.

Technical Specifications

wattage 50W
component Drain Pump
resistance 5-15 ohms
part_number SP123456
voltage_rating 240V AC

Common Questions

What does i90 error mean on Simpson Dishwasher?

The i90 error indicates a malfunction in the drain pump, affecting water drainage.

Can I fix Simpson Dishwasher i90 error myself?

Yes, you can attempt a general reset of the dishwasher to clear the error.

How much does it cost to fix i90 error?

Repair costs vary by model and region, so it's best to consult a technician for an estimate.

When should I call a technician for i90?

If the i90 code persists after a power reset and normal function is impaired, contact an authorized service.

Sources & References

Data last verified: 2026-04-23

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