Maytag Dryer Motor Starts Then Stops: Troubleshooting... | appliancefaults.com

Technical Background:

In many Maytag dryers, the start switch activates a latching circuit on the main control unit (MCU). When the start button is pressed, it provides initial voltage to the motor. Once the motor reaches a certain speed, a centrifugal switch closes, providing feedback to the MCU. The MCU then maintains power to the motor even after the start button is released. This requires both the start switch to initially close the circuit, and for the motor centrifugal switch and MCU latching relay to maintain it. 120V AC powers the components.

Symptoms:

US homeowner observation: My Maytag dryer motor starts and runs while I'm holding the start button down. However, as soon as I release the button, the motor stops completely.

Possible Causes:

Faulty start switch or push-to-start button
Defective motor centrifugal switch
Problem with the control board (MCU) latch circuit
Open thermal fuse
Wiring harness issue or loose connection

Solution:

1

Disconnect power to the dryer at the breaker panel. Verify no voltage is present at the dryer receptacle using a multimeter.
2

Locate and inspect the start switch. Use a multimeter to check for continuity when the button is pressed and released. Replace if faulty.
3

Access the motor. Locate the centrifugal switch on the motor. Use a multimeter to test its continuity when the motor is at rest. It should be closed. If open, the motor may need replacement or repair.
4

Check the thermal fuse, usually located on the blower housing. Use a multimeter to test for continuity. If there is no continuity, replace the thermal fuse.
5

Inspect the wiring harness and connectors, paying close attention to wires connected to the start switch, motor, and control board. Look for loose connections or damaged wires. Repair or replace as needed.
6

If the above steps don't resolve the issue, the control board (MCU) may be faulty. Replacement of the control board might be necessary. This may require a qualified technician.

Safety Warning:

Always disconnect power to the dryer at the breaker panel before attempting any repairs. Lock Out/Tag Out (LOTO) procedures should be followed to prevent accidental energization. High voltage is present inside the dryer; exercise caution.

Prevention:

Regularly clean the lint filter after each use. Annually, inspect and clean the dryer vent duct to ensure proper airflow. This prevents overheating and reduces stress on the motor and other components.

Expert Tip:

Many Maytag dryers have a diagnostic mode. Simultaneously press and hold the *MORE TIME* and *LESS TIME* buttons for 3 seconds to access the diagnostic menu and view any stored fault codes. Use this to narrow down the problem before disassembly.

Follow-up Questions:

Frequently Asked Questions

•How do I access the motor centrifugal switch on my Maytag dryer?

You typically need to disassemble the dryer cabinet, remove the drum belt, and then detach the motor from its mounting. The centrifugal switch is usually located on the motor end bell.

•Where is the thermal fuse located in my dryer?

The thermal fuse is typically located on the blower housing or near the exhaust duct of the dryer. It's a small, white, rectangular component with two wires connected to it.

•How can I test the start switch with a multimeter?

Disconnect the dryer from power. Set your multimeter to the continuity setting. Place the multimeter probes on the terminals of the start switch. Press the start button. You should see continuity (a reading close to zero ohms) when the button is pressed and no continuity (OL or infinite resistance) when the button is released.

Maytag Dryer Motor Starts Then Stops: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the motor centrifugal switch on my Maytag dryer?

•Where is the thermal fuse located in my dryer?

•How can I test the start switch with a multimeter?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: