Amana Dryer Heating Element Glowing Red: Safety and... | appliancefaults.com

Technical Background:

The dryer's MCU (Main Control Unit) controls the heating element by energizing a relay on the control board. This relay allows 240V AC to flow to the heating element. Thermostats and thermistors act as safety devices, opening the circuit if the dryer overheats. Proper airflow is crucial for heat dissipation; restrictions cause the element to overheat.

Symptoms:

The homeowner reports that the heating element housing inside their Amana dryer is glowing red during operation, raising concerns about safety.

Possible Causes:

Restricted airflow in the dryer vent system.
Malfunctioning thermostat or thermistor.
Stuck or shorted heating element relay on the control board.
Grounded heating element coil.
Overloading the dryer with excessive laundry.

Solution:

1

Disconnect power to the dryer at the breaker panel using Lock Out Tag Out (LOTO) procedures.
2

Inspect the dryer vent for blockages. Disconnect the vent from the dryer and the wall, then clear any lint buildup using a vacuum or vent cleaning brush.
3

Use a multimeter to test the continuity of the thermostats and thermistors. Replace any that are open or out of specification.
4

Visually inspect the heating element for any signs of damage, such as breaks or shorts. Use a multimeter to test for continuity to ground; there should be none.
5

Check the heating element relay on the control board for proper operation. If the relay is stuck closed, replace the control board.
6

Confirm proper voltage (240V AC) to the dryer at the terminal block using a multimeter once power is restored.
7

After repairs, run a test cycle and monitor the heating element operation.

Safety Warning:

Always disconnect power to the dryer at the breaker panel before performing any repairs. Use Lock Out Tag Out (LOTO) procedures to prevent accidental re-energizing of the circuit. This appliance operates at 240V AC, which can be lethal. If you are not comfortable working with electricity, contact a qualified appliance repair technician.

Prevention:

Clean the lint filter after every load. Inspect and clean the dryer vent system at least annually. Avoid overloading the dryer with excessive laundry.

Expert Tip:

Many Amana dryers have a diagnostic mode. Refer to the tech sheet typically located behind the control panel for instructions on entering diagnostic mode and retrieving error codes. This can help pinpoint the source of the problem more quickly.

Frequently Asked Questions

•How do I test the thermostats and thermistors with a multimeter?

Set your multimeter to the ohms setting. Disconnect the thermostat/thermistor from the wiring harness. Place the multimeter probes on each terminal of the thermostat/thermistor. A properly functioning thermostat should show continuity (close to 0 ohms) at room temperature. A thermistor will have a specific resistance value that varies with temperature; compare your reading to the tech sheet specifications. An open reading indicates a faulty component.

•What is the proper way to clean the dryer vent?

Disconnect the dryer vent from both the dryer and the wall. Use a vent cleaning brush or vacuum to remove lint from the vent. Inspect the entire length of the vent for any cracks, kinks, or damage. Replace any damaged sections. Ensure the vent is properly connected and sealed after cleaning.

•What are the common signs of a failing heating element?

Common signs include: the dryer not heating, clothes taking longer to dry, a burning smell, or visible damage to the heating element coil (e.g., breaks or shorts). A continuity test with a multimeter can confirm if the heating element is faulty.

Amana Dryer Heating Element Glowing Red: Safety and Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the thermostats and thermistors with a multimeter?

•What is the proper way to clean the dryer vent?

•What are the common signs of a failing heating element?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: