Error Code AL7

Error Code AL7 on your AEG, Electrolux, or Quelle-Privileg Dishwasher?

This critical error code, AL7, indicates a specific hardware malfunction associated with the circulation pump assembly in your dishwasher.

Understanding the Malfunction

The error specifically points to an electrical failure—a short circuit—within the tacho generator. The tacho generator is a crucial component integrated into the circulation pump motor. Its function is to monitor and regulate the motor’s rotational speed (RPM) and report this data back to the main control board.

When the tacho generator shorts out:

• The main control board cannot accurately determine if the pump motor is spinning at the correct speed required for effective washing.
• The system fails safe, often halting the cycle immediately and displaying the AL7 error code to indicate a fundamental operational failure.
• This failure confirms that the motor cannot perform its primary function of circulating water under pressure throughout the appliance tub.

Solution: Complete Pump Replacement

The design of the circulation pump in these models mandates a complete unit replacement:

The tacho generator is an internal, sealed component of the motor casing and is not available as a separate service part. It is physically impossible to access, test, or replace only the shorted tacho generator coil without dismantling and damaging the pump housing.

Therefore, the only permanent and effective remedy for the AL7 error code is the replacement of the complete circulation pump unit (which includes the new, functioning tacho generator).

What to do?

1. Verify the Error Code and Attempt a Reset:

   • Ensure that AL7 is the confirmed error displayed on your dishwasher’s screen, as similar numerical codes might exist for other models.
   • Before concluding that a part replacement is necessary, attempt a hard reset: Unplug the dishwasher from the power source (or switch off the corresponding circuit breaker) for a minimum of 5 minutes. Restore power and attempt to start a new cycle. If the AL7 error returns immediately upon power-up or shortly after initiating the wash program, the internal hardware fault is confirmed.

2. Contact a Qualified Service Professional:

   • Replacing the circulation pump is an extensive and complex repair. The procedure requires specialized technical knowledge, involves navigating confined spaces, handling internal plumbing and drainage (ensuring proper watertight connections), and dealing with high-voltage electrical connections.
   • We strongly advise against attempting this repair yourself. Contact a qualified, factory-authorized service technician or a certified appliance repair specialist.
   • A professional technician will have the necessary diagnostic tools to confirm the AL7 fault, ensure that the correct Original Equipment Manufacturer (OEM) replacement pump is sourced, and perform the installation safely and correctly. This professional intervention guarantees that the electrical integrity and water seals of your dishwasher are maintained, providing a lasting solution for the malfunction.