Simpson Dishwasher Error i50

⚡ Quick Answer: The i50 error code on your Simpson dishwasher indicates a drainage issue, often accompanied by a humming sound and water pooling at the bottom. This e... ✅ DIY Fixable

What Does Error i50 Mean?

The i50 error code on your Simpson dishwasher indicates a drainage issue, often accompanied by a humming sound and water pooling at the bottom. This error typically points to a malfunction of the wash motor or pump, leading to a halt in the washing cycle, lack of water circulation, and failure of the pump or motor to operate. If you encounter this error, it is essential to check and clean the filter and sump to remove any debris that may be obstructing the pump's operation.

Common Symptoms:

  • Dishwasher stops mid‑cycle
  • No water circulation
  • Pump/motor fails to run
  • Error code displayed on panel

Possible Causes

  • Drain Pump
  • Blocked Drain Hose
  • Faulty Control Board

How to Fix Error i50

DIY Fix Basic checks and reset

  1. Turn off the dishwasher and disconnect power at the mains or circuit breaker.
  2. Wait ~30–60 seconds and reconnect power to attempt a reset.
  3. Check and clean the filter and sump to remove debris that may hinder pump operation.
  4. Ensure no hoses are kinked or obstructed.

Technician Only Inspect wash motor/pump and control components

  1. Verify whether the circulation pump motor runs when a cycle starts.
  2. Inspect wiring harness and connectors to the pump for damage, corrosion, or loose connections.
  3. Test motor windings for open or shorted circuits with a multimeter.
  4. Inspect the main control board’s motor drive circuitry (triac/transistor) for faults.

Parts needed: Circulation pump/motor, Wiring harness/connectors, Control board motor drive components

🛑 When to Call a Pro:
  • If the error persists after reset and basic cleaning.
  • If you cannot safely access or test internal electrical components.
  • If there are signs of water leakage or electrical malfunction.

Technical Specifications

wattage 50W
component Drain Pump
resistance 10-30 ohms
part_number SP123456
voltage_rating 240V AC

Common Questions

What does i50 error mean on Simpson dishwasher?

The i50 error indicates a drainage issue, often linked to the wash motor or pump malfunction.

Can I fix Simpson dishwasher i50 error myself?

Yes, you can perform basic checks like resetting the dishwasher and cleaning the filter and sump.

How much does it cost to fix i50 error?

$150–$500+, depending on the parts required and service rates.

When should I call a technician for i50?

Call a technician if the error persists after reset, or if you notice water leakage or electrical issues.

Sources & References

Data last verified: 2026-04-23

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