Amana Dishwasher Error Code 1-2: Software Configuration... | appliancefaults.com

Technical Background:

error code 1-2 typically indicates a software configuration error within the dishwasher's main control unit (MCU). This can be caused by corrupted firmware, memory issues, or incorrect settings. The MCU uses various voltage paths (5V DC, 12V DC) to operate correctly. Interruptions or fluctuations in these voltage levels can trigger software errors.

Symptoms:

The dishwasher displays error code 1-2 on the control panel. The dishwasher may not start, or it may stop mid-cycle. The control panel may be unresponsive.

Possible Causes:

Corrupted software in the control module.
Loose wiring harness connection to the MCU.
Voltage fluctuations from the power supply.
Failed memory chip on the control board.
Incorrect option settings in the configuration menu.
Electromagnetic interference affecting the control board.

Solution:

1

Disconnect power to the dishwasher at the breaker panel.
2

Inspect the wiring harness connected to the control module for loose connections or damage.
3

Use a multimeter to check the voltage at the power supply terminals (should read 120V AC).
4

Re-seat the control module in its housing to ensure proper contact.
5

Attempt to reset the dishwasher by holding the 'Start/Reset' button for 5 seconds.
6

If available, use the diagnostic mode to re-flash the control module software.
7

If the error persists, replace the control module.

Safety Warning:

Disconnect power to the dishwasher at the breaker panel before attempting any repairs. Lockout/Tagout (LOTO) procedures must be followed. High voltage is present when the dishwasher is connected to power. Wear appropriate safety gear, including safety glasses and insulated gloves.

Prevention:

Regularly check the power cord and wiring for any signs of damage. Use a surge protector to protect the dishwasher from voltage fluctuations. Avoid overloading the circuit the dishwasher is connected to.

Expert Tip:

Try entering service mode by pressing and holding the 'High Temp Wash' and 'Heated Dry' buttons simultaneously for 3 seconds. This may allow you to clear the error code or access diagnostic functions.

Frequently Asked Questions

•What is the part number for the control module replacement?

The part number varies depending on the specific Amana dishwasher model. Consult the model's parts diagram or a parts supplier with the model number of the unit.

•How do I access the diagnostic mode on this dishwasher?

The diagnostic mode access varies, check the tech sheet stored behind the lower access panel of the unit, or contact Amana customer support for the specific sequence for your model.

•What voltage readings should I expect at the control module's power connector?

You should expect to see approximately 120V AC input, and typically 5V DC and 12V DC outputs. Refer to the wiring diagram for the specific voltage requirements for your model.

Amana Dishwasher Error Code 1-2: Software Configuration Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the part number for the control module replacement?

•How do I access the diagnostic mode on this dishwasher?

•What voltage readings should I expect at the control module's power connector?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: