Asko Dishwasher Error F20

⚡ Quick Answer: The Asko dishwasher F20 error indicates a malfunction in the water supply system, often preventing the dishwasher from filling properly or completing ... ✅ DIY Fixable

What Does Error F20 Mean?

The Asko dishwasher F20 error indicates a malfunction in the water supply system, often preventing the dishwasher from filling properly or completing its cycle. This issue may stem from a control board failure or incorrect configuration. If the error persists despite a simple reset, further investigation into the control board may be necessary.

Common Symptoms:

  • Dishwasher displays F20 error code and may not start or complete a cycle
  • Persistent fault even after power cycling

Possible Causes

  • Control board failure or incorrect configuration (medium)

How to Fix Error F20

DIY Fix Basic reset and visual checks

  1. Turn off power to the dishwasher at the breaker and leave off for at least 10 minutes
  2. Restore power and attempt to start a basic cycle to see if the error clears
  3. Visually inspect the dishwasher’s control panel for obvious signs of damage or moisture

Technician Only Verify control board and configuration

  1. Enter service mode (if supported by model) and verify correct model/configuration settings
  2. Inspect the main control board for burned components, corrosion, or moisture damage
  3. Replace the main control board with the correct Asko part number if confirmed defective

Parts needed: main control board

🛑 When to Call a Pro:
  • If error persists after reset and basic checks
  • When control board inspection reveals damage beyond user-level troubleshooting
  • If you are uncomfortable performing control board diagnostics safely

Technical Specifications

wattage N/A
component Water Inlet Valve
resistance 10-20 ohms
part_number ASKO 8050660
voltage_rating 120V AC

Common Questions

What does F20 error mean on asko dishwasher?

The F20 error indicates a problem with the water supply system, often due to control board issues.

Can I fix asko dishwasher F20 error myself?

Yes, you can perform basic resets and visual checks to troubleshoot the F20 error.

How much does it cost to fix F20 error?

Repair costs vary but are generally medium to high, especially if a control board replacement is needed.

When should I call a technician for F20?

Call a technician if the error persists after a reset or if the control board shows signs of damage.

Data last verified: 2026-07-07

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