LG ThinQ "Device already registered to another user":... | appliancefaults.com

Technical Background:

The LG ThinQ system relies on a cloud-based registration process. Each appliance is uniquely identified and linked to a specific user account. The MCU (Main Control Unit) stores registration information and communicates with LG's servers via your home Wi-Fi network. The registration process involves voltage paths for data transmission and secure key exchange.

Symptoms:

The LG ThinQ app displays the error message "Device already registered to another user" when attempting to connect an appliance. The appliance functions normally but cannot be controlled or monitored through the app.

Possible Causes:

Previous owner's account still linked.
Incorrect Wi-Fi network selection.
Faulty LG ThinQ app system.
MCU (Main Control Unit) glitch.
Server-side registration error on LG's end.
Using a different country/region setting in the app than the appliance.

Solution:

1

Power cycle the appliance: Unplug the appliance from the 120V AC outlet for 5 minutes.
2

Factory reset the appliance: Consult the user manual for the specific reset procedure for your model. This often involves holding down a specific button combination for 10-15 seconds.
3

Delete and reinstall the LG ThinQ app on your smartphone.
4

Check your Wi-Fi network: Ensure your smartphone is connected to the same 2.4 GHz Wi-Fi network as the appliance will use.
5

Create a new LG account using a different email address.
6

Re-register the appliance using the new account and following the app's instructions.
7

If the problem persists, contact LG customer support.

Safety Warning:

Always disconnect the appliance from the power source before performing any troubleshooting steps. Use proper lockout/tagout (LOTO) procedures to prevent accidental re-energization. Some components may retain a high voltage charge even after disconnection.

Prevention:

Before selling or disposing of an LG ThinQ appliance, perform a factory reset to remove your account association. This ensures the new owner can register the device without issues.

Expert Tip:

Try performing a 'network reset' on the appliance. Some LG models have a hidden service menu accessible by pressing and holding specific buttons (e.g., 'Start' and 'Temp') simultaneously for 5-7 seconds. The exact sequence varies by model; consult the service manual.

Frequently Asked Questions

•How do I perform a factory reset if I don't have the user manual?

Search online for the specific reset procedure for your LG ThinQ model. Many appliance repair websites and forums provide instructions. Alternatively, contact LG customer support with your model number.

•Will creating a new LG account erase my settings on my other LG appliances?

No, creating a new LG account will only affect the appliance you are registering with the new account. Your settings on other appliances registered with your old account will remain unchanged.

•If I still have the error, will LG charge me to fix this problem?

If the appliance is still under warranty, LG should cover the cost of repair or replacement related to this issue. If the appliance is out of warranty, you may be charged for diagnosis and repair. Contact LG customer support to inquire about warranty coverage and service options.

LG ThinQ "Device already registered to another user": Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I perform a factory reset if I don't have the user manual?

•Will creating a new LG account erase my settings on my other LG appliances?

•If I still have the error, will LG charge me to fix this problem?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: