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

Technical Background:

The dryer's MCU (Microcontroller Unit) uses the start switch input to energize a motor relay on the control board. This relay provides continuous power to the motor. A thermal fuse and belt switch are in series with the motor circuit as safety cutouts. The motor itself also often contains a centrifugal switch.

Symptoms:

The Admiral dryer motor starts running only when the start button is held down. Once the button is released, the motor immediately stops. The drum does not turn unless the start button is actively pressed.

Possible Causes:

Faulty start switch (momentary contact).
Defective motor relay on the control board.
Open thermal fuse.
Broken belt switch or tensioner.
Issues with the centrifugal switch in the motor itself.
Wiring harness problem between the start switch and the motor.

Solution:

1

Unplug the dryer from the 120V AC outlet and verify there is no voltage.
2

Locate and test the start switch for continuity. Use a multimeter; it should show continuity only when pressed.
3

Check the thermal fuse for continuity with a multimeter. It's usually located on the blower housing. Replace if open (no continuity).
4

Inspect the belt and belt switch/tensioner. Ensure the belt is intact and the switch is properly engaged when the belt is in place. Bypass the switch temporarily for testing purposes only.
5

Access the control board and inspect the motor relay for burnt contacts or damage. If possible, test the relay with a multimeter while manually activating it.
6

Examine the wiring harness between the start switch, control board, and motor for any breaks or loose connections. Repair as needed.
7

If all other components test okay, the motor itself might have a faulty centrifugal switch. This usually requires motor replacement.

Safety Warning:

Always disconnect power to the dryer at the breaker panel before performing any repairs. Use proper Lock Out/Tag Out (LOTO) procedures. Be aware of high voltage components inside the dryer.

Prevention:

Regularly clean the lint filter after each load. Inspect the dryer vent for obstructions at least twice a year. Replace the dryer belt every 3-5 years or as needed. Check the blower wheel for lint buildup annually. Avoid overloading the dryer.

Expert Tip:

Some Admiral dryers have a diagnostic mode. To access it, press and hold the 'Start' and 'End of Cycle' buttons simultaneously for 5 seconds. Error codes may display to help narrow down the issue.

Frequently Asked Questions

•What is the exact location of the thermal fuse in this dryer model?

The thermal fuse is typically located on the blower housing, near the exhaust vent. It's a small, white, rectangular component with two wires attached.

•How can I bypass the belt switch for testing purposes?

Disconnect the wires from the belt switch and connect them together with a wire nut or a small jumper wire. This bypasses the switch and completes the circuit. ONLY do this for testing; a bypassed switch is a safety hazard.

•What type of motor relay is typically used on Admiral dryer control boards?

Admiral dryers typically use a 12V DC coil relay, rated for at least 10 amps at 120V AC for the motor circuit. Check the relay markings on the control board for the exact specifications.

Admiral Dryer Motor Starts Then Stops: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the exact location of the thermal fuse in this dryer model?

•How can I bypass the belt switch for testing purposes?

•What type of motor relay is typically used on Admiral dryer control boards?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: