AEG Washer Error Code CB

The CB error code on an AEG washer means the machine reached its safety water level five separate times, triggering a protective shutdown. This repeated occurrence points to a mechanical fault in either the pressure switch or the water inlet valve. The washer stops operation to prevent overflow or water damage. A component repair or replacement is required to clear this condition.

Start by inspecting and replacing the pressure switch, as this is the primary component identified for this fault. Also check the pressure switch hose for kinks, blockages, or loose connections. If the pressure switch checks out, inspect the water inlet valve for any mechanical defect preventing full closure. Both components are accessible after removing the washer's front or top panel depending on the model.

Repair costs depend on which component is at fault. A replacement pressure switch typically costs between $15 and $50 for the part, while an inlet valve generally runs between $20 and $80. If a technician performs the repair, labor costs will add to the total, bringing the complete repair estimate to a range of roughly $80 to $250 depending on your location and the specific parts needed.

A simple reset is unlikely to permanently clear the CB code because the fault requires five safety-level events before it appears, indicating an underlying mechanical problem. Even if a reset temporarily restores operation, the defective pressure switch or inlet valve will cause the condition to repeat. The root cause must be repaired for the code to stay cleared.

No, the washer should not be used while CB is active. The code indicates repeated high water level events caused by a faulty pressure switch or inlet valve. Continuing to run the machine risks water overflow, drum overfilling, or water damage to the appliance and your home. Repair the identified components before resuming use.