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LG•ThinQ Dryer

Analysis by Lukas & Team

LG ThinQ Dryer Ozone Smell Troubleshooting

Troubleshoot ozone smells from your LG ThinQ dryer. Diagnose high voltage issues and prevent future occurrences. Get expert tips for Canadian homes.

Frequently Asked Questions

•How do I safely check the heating element resistance?

Disconnect power and use a multimeter set to ohms. Measure across the heating element terminals. Refer to the LG service manual for the expected resistance range.

•What are the signs of a failing inverter board?

Burnt components, unusual noises (buzzing or crackling), erratic temperature control, error codes related to voltage or current.

•Can static cling cause the ozone smell?

Static cling itself doesn't produce ozone, but it can exacerbate the perception of the smell by attracting more dust and lint to the heating element.

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About Lukas & Team

Lukas leads the technical research department at Digital Home Faults. Together with a team of systems analysts, he specializes in translating complex manufacturer error codes into actionable diagnostic steps for the Canadian market.

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Safety Warning:

Disconnect power before any inspection or maintenance. High voltage is present within the dryer, creating a risk of electric shock. Do not operate the dryer if you smell ozone or notice any unusual noises. Contact a qualified technician for repairs. Ensure the dryer is properly grounded to prevent static electricity build-up. Always follow Canadian Electrical Code guidelines.

Solution:

1

Disconnect the dryer from the power supply by turning off the corresponding breaker in the electrical panel. Verify with a multimeter that no voltage is present at the outlet.
2

Thoroughly clean the dryer's lint trap and exhaust ducting. Inspect for blockages.
3

Carefully remove the dryer's back panel to access the internal components.
4

Visually inspect the heating element, inverter board, and wiring for signs of damage, arcing, or overheating. Use a flashlight for better visibility.
5

Use a multimeter to check the resistance of the heating element. An open circuit indicates a faulty element. Refer to the LG service manual for the correct resistance range.
6

Inspect the wiring connections for tightness and corrosion. Clean or replace as needed. Use appropriate wire connectors.
7

If the inverter board is suspected, consult a qualified appliance repair technician for diagnosis and replacement. This component involves high-voltage circuits and specialized knowledge.

Symptoms:

Detection of a distinct ozone-like odour emanating from the dryer during or immediately after operation. Visual inspection may reveal no obvious physical damage. The ThinQ app may not display any error codes, or display generic overheating errors. Verify the voltage rating on the dryer's nameplate matches the electrical outlet (240V in most Canadian homes).

Possible Causes:

High voltage arcing due to dust or lint accumulation on the heating element or wiring.
Deterioration or failure of the inverter board, leading to voltage irregularities.
Heating element failure, causing localized overheating and ozone creation.
Motor commutator arcing (if applicable, older models).
Static electricity build-up in the drum due to synthetic fabrics, exacerbating ozone smell.
Loose wiring connections within the dryer's electrical system, increasing resistance and heat.

Technical Recommendation:

Before disassembling the dryer, take photos of the wiring connections for reference during reassembly. If the ThinQ app shows frequent disconnects, try assigning a static IP address to the dryer on your home network. Consult your router's manual (Bell Giga Hub or Rogers Ignite) for instructions. Confirm the breaker is fully seated and not loose which can cause an intermittent high resistance connection.

How It Works:

The LG ThinQ dryer employs a high-voltage system to generate heat. Ozone (O3) can be produced when high voltage electricity arcs across gaps or through failing components. The inverter board, heating element, and motor are potential sources. Firmware controls regulate heating cycles; failures can lead to uncontrolled heating and ozone production. The dryer communicates with the ThinQ app via Wi-Fi (2.4 GHz band typically) for remote control and diagnostics. Note the RSSI value of the dryer's Wi-Fi connection to assess network stability; values below -70 dBm can cause intermittent connectivity and firmware update failures.

Preventative Care:

Clean the lint trap after every load and inspect the exhaust ducting regularly (at least every 6 months) for blockages.
Periodically inspect the dryer's vent externally to ensure it is not blocked by snow or ice, especially during Canadian winters.
Avoid overloading the dryer, as this can increase drying time and stress the heating element.
Run the dryer on a lower heat setting for delicate fabrics to minimize static electricity build-up.
Ensure the dryer's firmware is up-to-date to address potential control issues (OTA updates through the ThinQ app). Ensure Wi-Fi signal strength is adequate.