Admiral Dryer: Check Lint Screen Light Stays On -... | appliancefaults.com

Technical Background:

The dryer's Main Control Unit (MCU) monitors the lint screen sensor. This sensor typically provides a voltage signal (usually 5V DC) to the MCU when the lint screen is clean. When lint accumulates or the sensor fails, the voltage signal changes or is interrupted, triggering the 'Check Lint Screen' light. The MCU interprets this change as a need for maintenance.

Symptoms:

The 'Check Lint Screen' light remains illuminated even after cleaning the lint screen and duct. The dryer may or may not be functioning normally otherwise.

Possible Causes:

Clogged lint duct
Faulty lint screen sensor
Defective control board (MCU)
Wiring harness issue (loose connection or damage)
Static electricity interference

Solution:

1

Disconnect power to the dryer at the breaker panel.
2

Thoroughly clean the lint screen and lint duct using a vacuum cleaner and lint brush.
3

Locate the lint screen sensor (usually near the lint screen housing). Check for continuity with a multimeter. An open circuit indicates a faulty sensor. A typical resistance reading for a good sensor is between 1k and 5k ohms.
4

Inspect the wiring harness connected to the lint screen sensor and the control board for any loose connections or damage. Repair or replace as needed. Use a 1/4-inch nut driver to remove the control panel for access.
5

Visually inspect the control board (MCU) for any signs of damage (burned components, bulging capacitors). Check the 5V DC supply voltage to the sensor.
6

If the sensor and wiring are good, and the lint duct is clean, replace the control board (MCU).
7

Reconnect power and test the dryer.

Safety Warning:

Disconnect power to the dryer before performing any maintenance or repairs. Lock out/tag out (LOTO) the breaker to prevent accidental energization. High voltage is present inside the dryer.

Prevention:

Clean the lint screen after every load. Periodically check and clean the lint duct (every 6 months) to prevent lint buildup. Ensure proper dryer venting to the outside.

Expert Tip:

Some Admiral dryers have a diagnostic mode. To access it, press and hold the Start/Pause and Cycle Signal buttons simultaneously for 3 seconds. This may allow you to clear the error code, though it will likely return if the underlying issue isn't addressed.

Follow-up Questions:

Frequently Asked Questions

•How do I access the lint duct for cleaning?

Typically, the lint duct can be accessed by removing a panel on the back of the dryer or by disconnecting the vent hose. Refer to your dryer's service manual for specific instructions.

•Where can I find a replacement lint screen sensor?

Replacement lint screen sensors can be purchased from appliance parts retailers online or at local appliance repair shops. Be sure to have your dryer's model number handy to ensure you get the correct part.

•How much does a replacement control board (MCU) cost?

The cost of a replacement control board can vary depending on the model and supplier. Expect to pay between $100 and $300. Consider the cost versus replacing the entire dryer.

Admiral Dryer: Check Lint Screen Light Stays On - Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the lint duct for cleaning?

•Where can I find a replacement lint screen sensor?

•How much does a replacement control board (MCU) cost?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: