Maytag Washer: "Add Garment" Light Stays On -... | appliancefaults.com

Technical Background:

The 'Add Garment' light is controlled by the MCU. The MCU monitors the door switch. When the door is closed and locked, the door switch sends a signal (typically a voltage change) to the MCU. If the MCU doesn't receive the correct signal or receives an inconsistent signal, it keeps the 'Add Garment' light on.

Symptoms:

The 'Add Garment' light on the Maytag washer remains illuminated even when the door is securely closed and the wash cycle is running or paused. The washer may or may not start a cycle.

Possible Causes:

Faulty door switch/lock assembly.
Wiring harness issue between door lock and MCU (Main Control Unit).
Defective MCU (Main Control Unit).
Foreign object obstructing door lock mechanism.
Loose connection at the door switch or MCU.
Software glitch in the MCU.

Solution:

1

Unplug the washer from the 120V AC outlet.
2

Locate the door switch/lock assembly. Typically held in place with two screws (usually Phillips head).
3

Disconnect the wiring harness from the door switch.
4

Using a multimeter, check the continuity of the door switch when the door is closed. It should show a closed circuit.
5

Inspect the wiring harness for any damage, cuts, or loose connections. Use a wiring diagram to verify the correct wire colors and pin assignments.
6

If the door switch and wiring harness are okay, the MCU may be faulty. Replacing the MCU is best left to a qualified technician. Requires programming on some models.
7

Reassemble the door switch and plug the washer back into the outlet.

Safety Warning:

Disconnect power to the appliance at the breaker panel before attempting any repairs. Some components may retain a charge even after the power is disconnected. High voltage is present when the washer is plugged in.

Prevention:

Avoid slamming the washer door. Regularly inspect the door seal for damage and replace it if needed. Do not overload the washer, as this can stress the door lock mechanism.

Expert Tip:

Some Maytag washers have a diagnostic mode. Consult the service manual to access the diagnostic mode and retrieve error codes related to the door switch. This can help pinpoint the exact problem.

Frequently Asked Questions

•What is the resistance reading I should expect from a working door switch?

When the door is closed and locked, a working door switch should show near zero ohms (a closed circuit) on a multimeter. When the door is open, it should show infinite resistance (an open circuit).

•Where can I find the wiring diagram for my specific Maytag washer model?

The wiring diagram is often located inside the washer's control panel or sometimes taped to the inside of the cabinet. You can also find it in the service manual for your washer model, usually available online for purchase or download.

•If the door switch tests okay, how do I test the wiring harness to the MCU?

With the washer unplugged, use a multimeter to check the continuity of each wire in the harness between the door switch connector and the MCU connector. Refer to the wiring diagram for the correct pin assignments. Also, check for shorts to ground by measuring the resistance between each wire and the washer chassis. It should be a very high resistance (near infinite).

Maytag Washer: "Add Garment" Light Stays On - Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the resistance reading I should expect from a working door switch?

•Where can I find the wiring diagram for my specific Maytag washer model?

•If the door switch tests okay, how do I test the wiring harness to the MCU?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: