Admiral Dryer Overheating and Burning Lint Smell:... | appliancefaults.com

Technical Background:

The dryer's Main Control Unit (MCU) regulates the heating element based on input from thermostats and moisture sensors. Voltage (240V AC) is supplied to the heating element via relays controlled by the MCU. Thermostats act as safety devices, interrupting the voltage path if the dryer overheats. A restricted exhaust vent or clogged lint filter reduces airflow, causing the dryer to overheat and potentially ignite lint.

Symptoms:

The homeowner reports that the Admiral dryer is getting excessively hot during operation and emitting a distinct burning smell, resembling burning lint.

Possible Causes:

Restricted exhaust vent
Clogged lint filter
Faulty heating element
Malfunctioning thermostat
Defective cycling thermostat

Solution:

1

Unplug the dryer from the outlet. Verify Lock Out Tag Out (LOTO) procedures are followed.
2

Inspect the exhaust vent for obstructions. Remove any lint or debris. Ensure the vent is no longer than the manufacturer's recommendation (typically less than 25 feet).
3

Clean the lint filter thoroughly. A clogged filter restricts airflow and causes overheating.
4

Locate the heating element. Disconnect the wires and test the element for continuity with a multimeter. A reading of infinity indicates a faulty element. Replace if needed.
5

Check the thermostats (operating and cycling). Use a multimeter to test for continuity. If either thermostat shows no continuity, replace it.
6

With the dryer reassembled and power restored, monitor the dryer's temperature during a drying cycle. Use a non-contact infrared thermometer to verify the temperature stays within the normal operating range (125-175°F).
7

Verify voltage at the outlet is 240V AC using a multimeter.

Safety Warning:

Disconnect power to the appliance before performing any repairs. Dryers operate on 240V AC, which can cause serious injury or death. Always verify LOTO before starting work.

Prevention:

Clean the lint filter after every load. Inspect and clean the exhaust vent at least annually. Consider using a dryer vent cleaning brush to remove accumulated lint. Ensure proper airflow around the dryer.

Expert Tip:

Many Admiral dryers have a service mode that allows you to run diagnostic tests. Consult the service manual for instructions on entering service mode and running specific tests on the heating element and thermostats.

Frequently Asked Questions

•How do I access the heating element in my Admiral dryer?

The heating element is typically located at the rear of the dryer, behind an access panel. You'll likely need a 1/4-inch nut driver to remove the panel screws. Disconnect the power before accessing.

•What is the acceptable resistance range for a dryer heating element?

Typically, a good heating element will measure between 8 and 12 ohms. An open circuit (infinity) indicates a faulty element.

•How can I tell if my dryer vent is too long?

Check the manufacturer's specifications for your dryer model, but as a general rule, a rigid metal vent should not exceed 25 feet, with each 90-degree bend reducing the maximum length by 5 feet. Flexible vents should be avoided as they collect more lint.

Admiral Dryer Overheating and Burning Lint Smell: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the heating element in my Admiral dryer?

•What is the acceptable resistance range for a dryer heating element?

•How can I tell if my dryer vent is too long?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: