Asko Dishwasher Error Code FB

The Asko Dishwasher Error Code FB is a specific fault indicating an issue with the spray arm divider system, more precisely related to the position contact being either continuously closed or open. Although this error does not immediately halt the dishwasher’s program, it appears in the service menu as a critical diagnostic signal, alerting users and technicians to potential mechanical or electrical faults within the spray arm divider mechanism.

What Does Error Code FB Mean?

Error Code FB points to a Spray Arm Divider Fault, which involves the position contact of the spray arm divider gearbox. The position contact acts as a switch to ensure the spray arm divider moves correctly between washing zones. When this contact is stuck either in a closed or open state, the dishwasher detects a malfunction, triggering the FB code.

Why Is This Important?

Even though the dishwasher continues its wash cycle despite the FB error, ignoring it can lead to poor cleaning performance or further mechanical damage. Detecting and addressing this error early helps maintain optimal dishwasher functionality and prolongs the appliance’s lifespan.

Causes of Error Code FB

The fault arises mainly from electrical or mechanical issues within the spray arm divider gearbox. Common causes include:

• Position Contact Stuck Closed: This means the contact never opens, disrupting the spray arm divider’s normal switching function.

• Position Contact Stuck Open: In this case, the contact remains open, preventing the proper signaling of spray arm position.

• Damaged or Faulty Gearbox Contacts: Worn or corroded contacts may fail to provide accurate position signals.

• Wiring Issues: Loose, damaged, or corroded wiring can interfere with signal transmission between the spray arm divider and the control board.

How to Diagnose and Fix Error Code FB

Proper diagnosis requires careful inspection of the spray arm divider system, focusing on:

1. Gearbox Inspection: Examine the gearbox mechanism for any signs of physical damage, wear, or obstruction that could affect movement.

2. Check Position Contacts: Use a multimeter to test the continuity of the position contacts and ensure they switch properly between open and closed states.

3. Inspect Wiring Harness: Look for damaged, frayed, or loose wires connecting the gearbox to the dishwasher’s control board.

4. Clean and Repair Contacts: Remove corrosion or debris that may interfere with electrical contact.

5. Replace Faulty Parts: If the gearbox or position contacts are defective, replacement is usually required for reliable operation.

Service Menu and Preventive Maintenance

The FB error code is displayed exclusively in the dishwasher’s service menu, making it less visible to everyday users. Regularly accessing the service menu during maintenance checks can help catch such errors early. Incorporating periodic inspections of the spray arm divider and its components into your maintenance routine will reduce the risk of this fault and improve dishwasher reliability.