Amana Washer Won't Start: Troubleshooting Two Beep Error... | appliancefaults.com

Technical Background:

The MCU (Main Control Unit) is the brains of the washer. It monitors various sensors and components, including the door switch, motor, and water level. When the start button is pressed, the MCU checks if all conditions are met (e.g., door closed) before initiating the wash cycle. A 'two beep' error usually indicates a fault in one of these critical circuits. The MCU sends voltage to the door lock which tells it the door is locked before it allows power to the motor.

Symptoms:

The Amana washer won't start when the start button is pressed. Instead, it emits two beeps and remains unresponsive.

Possible Causes:

Door switch malfunction
Main Control Unit (MCU) failure
Lid lock/strike misalignment
Wiring harness damage (door switch circuit)
Power supply issue to the MCU
Motor control board failure

Solution:

1

Unplug the washer from the wall outlet.
2

Verify 120V AC power at the wall outlet using a multimeter.
3

Inspect the door switch and strike for damage or misalignment. Tighten the strike plate screws using a Phillips head screwdriver.
4

Check the wiring harness connecting the door switch to the MCU for any breaks or loose connections. Use a multimeter to test continuity.
5

Access the MCU (usually behind the control panel). Inspect for burnt components or water damage. Replace if necessary.
6

Use a wiring diagram to verify the correct voltage is reaching the MCU. A low voltage condition can cause the error.
7

Replace the door switch. They are prone to failure, even if they look OK.

Safety Warning:

Always disconnect the power supply (unplug the washer) before performing any repairs. High voltage is present inside the washer. Follow Lock Out/Tag Out (LOTO) procedures to prevent accidental energization during repairs.

Prevention:

Regularly inspect the door switch and strike for wear and tear. Avoid slamming the washer door. Ensure proper leveling of the washer to prevent excessive vibration, which can damage wiring harnesses. Use a surge protector to prevent damage from power surges.

Expert Tip:

Some Amana washers have a service mode that allows you to view error codes and run diagnostic tests. To enter service mode, simultaneously press and hold the Start/Pause and Cycle Signal buttons for approximately 3 seconds. Consult the service manual for specific button combinations and error code definitions.

Follow-up Questions:

Frequently Asked Questions

•How do I access the door switch to test it?

Typically, you'll need to remove the top panel of the washer. This usually involves removing screws at the back of the unit. Once the top is off, you can access the door switch and its wiring harness.

•What voltage should I expect to see at the door switch when the door is closed?

You should expect to see 120V AC at the door switch when the door is closed, indicating that the power circuit is complete. Use a multimeter to check the voltage across the switch terminals while carefully closing the door.

•Where can I find a wiring diagram for my Amana washer?

A wiring diagram is often taped to the inside of the washer cabinet, either on the back panel or near the control panel. You can also search online using the model number of your washer, or contact Amana customer support for assistance.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the door switch to test it?

•What voltage should I expect to see at the door switch when the door is closed?

•Where can I find a wiring diagram for my Amana washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: