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

Next step

Choose the next step for F20

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Main Control Board

The central brain of the appliance that controls all components, cycles, and timings.

Typical part-only price
$120 - $280
DIY difficulty
Medium
Estimated time
20-40 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Dishwasher parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.

Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Dishwasher Cleaner and Descaler

Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.

View maintenance supply
Maintenance supply

Braided Dishwasher Inlet Hose

For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.

View maintenance supply

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

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: 2026-07-25

User Comments (0)

Share your experience or solution below.

Be the first to comment!