Amana Dishwasher Error Code 10-1: Spray Arm Diverter... | appliancefaults.com

Technical Background:

The Amana dishwasher uses a diverter valve to alternate water flow between the upper and lower spray arms. The main control unit (MCU) controls the diverter motor. error code 10-1 indicates that the MCU is not receiving the expected feedback from the diverter motor circuit, suggesting a fault in the motor, wiring, or the MCU itself. The MCU sends 120V AC to the diverter motor to change its position.

Symptoms:

The dishwasher displays error code 10-1. Dishes may not be cleaned effectively, particularly on the upper rack. The spray arms may not be rotating properly, or water pressure may seem low. The dishwasher cycle may be interrupted.

Possible Causes:

Failed diverter motor
Obstruction in the diverter valve path
Wiring harness damage to the diverter motor circuit
Faulty main control board (MCU)
Clogged spray arms restricting water flow
Low water pressure to the dishwasher

Solution:

1

Disconnect power to the dishwasher at the breaker panel.
2

Access the diverter motor assembly, usually located at the bottom of the wash chamber.
3

Visually inspect the wiring harness and connections to the diverter motor for damage or loose connections. Repair or replace as needed.
4

Use a multimeter to test the diverter motor windings for continuity. An open or shorted winding indicates a failed motor. Replace the diverter motor assembly.
5

Check for any obstructions in the diverter valve path. Remove any debris that may be blocking the valve from moving freely.
6

If the motor and wiring appear good, check the voltage to the diverter motor during the wash cycle. It should read approximately 120V AC. If voltage is absent, the main control board (MCU) may be faulty and need replacement.
7

Clear any clogs from the spray arm nozzles. Remove the spray arms and flush them thoroughly.

Safety Warning:

Disconnect power to the dishwasher at the breaker panel before performing any repairs. Label the breaker with a Lock-Out-Tag-Out (LOTO) procedure to prevent accidental re-energizing. High voltage is present in the dishwasher's electrical components.

Prevention:

Run the dishwasher regularly. Use a dishwasher cleaner monthly to prevent buildup. Check and clean the spray arms and filter regularly.

Expert Tip:

Many dishwashers have a diagnostic service mode. Consult the technical service manual or online resources to learn how to enter the service mode and run diagnostic tests on the diverter motor and other components. This can often pinpoint the exact cause of the error.

Frequently Asked Questions

•How do I access the diverter motor in my Amana dishwasher?

You typically need to remove the lower spray arm and the lower rack. Then, there's usually a cover plate that needs to be unscrewed to access the diverter motor assembly. Refer to your specific model's service manual for detailed instructions.

•What resistance reading should I expect on a functioning diverter motor?

The resistance reading varies by model, but typically falls between 20-60 ohms. Use your multimeter on the ohms setting and compare your reading to the manufacturer's specifications.

•If the diverter motor has power, but the error persists, is the MCU definitely faulty?

Not necessarily. It could still be a mechanical issue within the diverter valve assembly that's preventing proper movement, or an issue with the feedback circuit. Double-check for any obstructions and ensure the valve moves freely before replacing the MCU.

Amana Dishwasher Error Code 10-1: Spray Arm Diverter Fault Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the diverter motor in my Amana dishwasher?

•What resistance reading should I expect on a functioning diverter motor?

•If the diverter motor has power, but the error persists, is the MCU definitely faulty?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: