LG ThinQ AC Displays Incorrect Heating/Cooling Mode -... | digitalhomefaults.org

Technical Background:

The LG ThinQ AC uses a Wi-Fi module (LGMxxx) to communicate with the LG cloud service. The mode setting is transmitted as a JSON payload. Potential issues include incorrect data serialization, transmission errors, or a mismatch between the cloud state and the local AC unit's state. Temperature sensor readings are used for both cooling and heating, potentially causing confusion if sensor calibration is off.

Symptoms:

The LG ThinQ AC unit displays 'Heating' mode in the mobile application while the physical unit is set to or actively running in 'Cooling' mode. No error codes are reported in the app's diagnostics section. The LED indicator on the AC unit may show the correct cooling indicator, contradicting the app display.

Possible Causes:

Firmware bug in the LG ThinQ AC Wi-Fi module (LGMxxx) causing incorrect mode reporting.
Communication timeout between the AC unit and the LG cloud server leading to stale data being displayed in the app.
Corrupted data in the AC unit's non-volatile memory storing the current mode setting.
Interference on the 2.4 GHz Wi-Fi band, causing packet loss and incorrect mode updates. Common interference sources include microwave ovens and cordless phones.
Temperature sensor drift causing the unit to misinterpret the desired mode based on target temperature.
LG cloud service outage or incorrect data processing on the server side.

Solution:

1

Power cycle the LG ThinQ AC unit by disconnecting it from the power outlet for 60 seconds, then reconnect. This resets the internal microprocessor.
2

Verify the Wi-Fi signal strength (RSSI) at the AC unit's location using a Wi-Fi analyzer app on your smartphone. Aim for an RSSI above -70 dBm. If the signal is weak, consider relocating the router or adding a Wi-Fi extender.
3

Check the LG ThinQ app for available firmware updates for the AC unit. Install any pending updates to address potential software bugs.
4

Reset the AC unit to factory settings through the LG ThinQ app, and then re-register the device to your account. Note: You may need to reconfigure your schedules.
5

If using a dual-band router (2.4 GHz and 5 GHz), ensure the AC unit is connected to the 2.4 GHz network, as it generally has better range and penetration. Check your Bell Giga Hub or Rogers Ignite settings.
6

Monitor the AC unit's behavior for 24 hours after implementing the above steps. If the issue persists, contact LG customer support with detailed symptom descriptions.
7

As a last resort, attempt to control the AC unit via the local control fallback (if available) to isolate cloud dependency.

Safety Warning:

Ensure the LG ThinQ AC unit is disconnected from the power supply before performing any physical inspection or maintenance. Do not attempt to disassemble the AC unit, as it may contain hazardous components and high voltage circuits. Protect your Wi-Fi network with a strong password and enable two-factor authentication to prevent unauthorized access to your smart home devices.

Prevention:

- Regularly check for firmware updates for the LG ThinQ AC unit through the mobile application. - Monitor the Wi-Fi signal strength near the AC unit to ensure a stable connection. - Avoid placing the AC unit near sources of electromagnetic interference, such as microwave ovens. - Schedule a professional HVAC technician to calibrate the temperature sensors annually.

Expert Tip:

Try creating a routine in the LG ThinQ app that sets the AC mode to cooling at a specific time. This may override any incorrect settings and force the unit into the correct mode. Monitor the unit's behavior after the routine is executed.

Frequently Asked Questions

•How do I check the firmware version of my LG ThinQ AC unit?

Open the LG ThinQ app, select your AC unit, go to settings, and look for 'Software Update' or 'Firmware Version'.

•What is the optimal Wi-Fi signal strength for the LG ThinQ AC unit?

An RSSI of -70 dBm or higher is recommended for reliable connectivity. Use a Wi-Fi analyzer app to measure the signal strength at the AC unit's location.

•How do I reset my LG ThinQ AC unit to factory settings?

In the LG ThinQ app, select your AC unit, go to settings, and look for an option like 'Remove Device' or 'Factory Reset'. Follow the on-screen instructions.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

Frequently Asked Questions

•How do I check the firmware version of my LG ThinQ AC unit?

•What is the optimal Wi-Fi signal strength for the LG ThinQ AC unit?

•How do I reset my LG ThinQ AC unit to factory settings?

Related Questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: