LG Dryer Clicking Sound Troubleshooting - Smart Home | digitalhomefaults.org

Technical Background:

The LG dryer employs a direct drive motor with inverter control (if applicable) or a belt-driven system. Clicking can originate from the motor control circuit (triac or relay clicking), the drum support rollers, the idler pulley assembly, or the drive motor itself. Inverter models use Pulse Width Modulation (PWM) for motor speed control; faults in the PWM signal can trigger relay clicking. Wi-Fi module uses 2.4 GHz band. Firmware updates occur OTA.

Symptoms:

Audible clicking sound originating from the LG dryer unit, occurring approximately every 5 seconds. No error codes displayed on the LED panel. No connectivity issues reported via the LG ThinQ app. Drum rotation appears normal.

Possible Causes:

Defective drum support rollers causing uneven drum rotation and noise.
Worn or misaligned idler pulley assembly affecting belt tension.
Faulty motor start relay or triac on the motor control board.
Foreign object (e.g., coin, button) lodged within the blower housing or drum fins.
Damaged drive belt (if applicable) causing slippage and clicking.
Loose heating element mounting bracket causing vibration and noise during heating cycles.

Solution:

1

Disconnect power to the dryer by switching off the corresponding breaker in the electrical panel. Verify voltage absence using a multimeter (240VAC).
2

Access the dryer's internal components by removing the rear or front panel (refer to the service manual).
3

Inspect the drum support rollers for wear or damage. Replace as needed.
4

Examine the idler pulley assembly for proper tension and alignment. Replace if necessary.
5

Check the motor start relay or triac on the motor control board for signs of physical damage (burnt components). Replace the control board if necessary.
6

Inspect and clear any foreign objects from the blower housing and drum fins.
7

Test the heating element for continuity and shorts to ground using a multimeter. Replace the element if faulty.

Safety Warning:

Always disconnect power to the dryer before performing any maintenance or repairs. Exercise caution when working with electrical components. If you are not comfortable working with electrical appliances, contact a qualified appliance repair technician. Data privacy: secure your home Wi-Fi to avoid unauthorized dryer control.

Prevention:

- Regularly clean the lint filter after each drying cycle to maintain proper airflow and prevent overheating. - Inspect the dryer vent ductwork annually to ensure it is free of obstructions and properly sealed. Consider a rigid metal duct for fire safety. - Check and tighten all screws and connections on the dryer's internal components every six months. - Perform a visual inspection of the drum support rollers, idler pulley, and drive belt annually. - Ensure firmware is updated to the latest version via the LG ThinQ app to address potential software glitches.

Expert Tip:

If the clicking sound only occurs during the heating cycle, suspect a loose or vibrating heating element mounting bracket. Check the element's continuity and look for any signs of arcing with a thermal camera if available.

Frequently Asked Questions

•Is the dryer still under warranty?

Check your purchase receipt and LG warranty documentation. Contact LG customer support for warranty claims.

•What is the model number of the dryer?

The model number is typically located on a sticker inside the dryer door or on the rear panel. This information is needed to find compatible replacement parts.

•Do I need specialized tools to repair the dryer?

Basic tools such as a screwdriver set, socket set, multimeter, and pliers are typically sufficient. A dryer repair kit can be purchased online or at appliance parts stores.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

Frequently Asked Questions

•Is the dryer still under warranty?

•What is the model number of the dryer?

•Do I need specialized tools to repair the dryer?

Related Questions

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Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

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