Over 134,000 users have rated the LG ThinQ app 4.5 out of 5 stars. LG Smart Diagnosis has transformed the way we handle appliance problems.
Your washer might not spin or your dishwasher might not clean properly. The first solution isn’t always calling a technician. LG Smart Diagnosis allows us to troubleshoot appliance problems directly from our phones by sending data to the LG Customer Information Center.
The ThinQ app lets us control our smart home appliances from anywhere, which makes home management more convenient than ever before.
This piece covers everything you need to know about making LG Smart Diagnosis work. We’ll guide you through setting up the ThinQ app, running diagnostic tests, and understanding results with simple, applicable steps.
Let’s head over to make appliance troubleshooting easier!
What is LG Smart Diagnosis and How Does it Work

Smart Diagnosis is LG’s advanced technology that lets appliances share their operational status through the LG ThinQ app. This innovative system spots possible problems and gives you instant solutions without needing a service call.
Understanding Smart Diagnosis Technology
The technology uses a sophisticated data transmission system to connect LG appliances with smartphones. Smart Diagnosis sends detailed performance data to the ThinQ app once activated. The app analyzes this information to find potential problems quickly. WiFi or NFC technology handles the transmission of diagnostic data.
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Benefits of Using Smart Diagnosis
LG appliance owners get several advantages with Smart Diagnosis. The system gives quick answers to common problems and eliminates long phone calls. It also helps save time and money by letting users diagnose simple issues themselves. Service representatives can solve problems faster because they receive accurate diagnostic data that shows exactly what’s wrong.
Compatible LG Appliances
Smart Diagnosis works with these LG appliances:
- Refrigerators
- Washing machines
- Ranges and ovens
- Dishwashers
Users can spot supported products by looking for the Smart Diagnosis logo. The ThinQ app acts as a central hub to manage all compatible LG smart appliances. Users get monthly performance reports and maintenance reminders to keep their appliances running smoothly.
Setting Up LG ThinQ App for Smart Diagnosis

The LG Smart Diagnosis setup starts with the ThinQ app on your mobile device. This guide will help you connect your appliances and prepare them for smart diagnostics.
Installing and Configuring the App
The LG ThinQ app works best with specific system requirements. Android users need OS 7.0 or higher, while iPhone users should have iOS 11.0 or higher. Your device needs 2GB RAM and 150MB of free storage space.
Here’s how to set up:
- Download LG ThinQ from your device’s app store
- Create an LG account or sign in with existing credentials
- Accept the necessary permissions
- Complete email verification
- Set up your profile with a nickname
Connecting Your Appliance to WiFi
Your LG appliance needs to connect to your home network. The ThinQ app works only with 2.4GHz frequency routers and doesn’t support 5GHz connections. Keep your appliance within 30 feet of the router to maintain strong connectivity.
The connection process is straightforward. Turn on your appliance and enable its WiFi function. Launch the ThinQ app and select “Add Device.” You’ll see prompts to choose your home network and enter the password.
Common Connection Issues and Solutions
Network problems can pop up during setup. Here are some quick fixes:
A “network not connected” message means you should check your mobile device’s router connection. When you see “network not found” errors, look for special characters in your WiFi name.
Many connection issues resolve with a simple power cycle. Just unplug your appliance for 30 seconds, restart your phone, and try connecting again.
Your phone’s mobile hotspot can help pinpoint stubborn connection problems. This test shows whether the issue lies with your home router or the appliance.
Step-by-Step Guide to Running a Smart Diagnosis

Smart Diagnosis needs proper preparation and execution. This piece explains how you can diagnose your LG appliance to get the best results.
Preparing Your Appliance for Diagnosis
Your appliance must show the Smart Diagnosis logo. Make sure your wireless router works and you have the ThinQ app on your smartphone. The appliance should connect to WiFi and show up in your ThinQ app before you start.
Running the Diagnostic Test
These steps are the foundations of the diagnostic process:
- Open the ThinQ app on your mobile device
- Select the menu icon on the home screen
- Choose “Smart Diagnosis”
- Select your appliance type
- Press “Start” to begin the process
The app will guide you with specific instructions based on your appliance. To cite an instance, refrigerator owners should hold down the alarm/lock button for three seconds. Washer owners need to press the wash temp button.
Interpreting Test Results
The ThinQ app shows detailed information about your appliance’s performance when the test ends. Results point out problems that need attention, which helps you decide what repairs or maintenance you need.
Your ThinQ app is a great way to get tips and recommendations about LG product care. You can contact LG customer support through the app if you need professional help after checking the results.
Troubleshooting Common Smart Diagnosis Problems

Network connectivity problems create the first barrier when trying to make LG Smart Diagnosis work. These problems might look complex at first, but most solutions are straightforward.
Connection and Network Issues
The ThinQ app supports only 2.4GHz WiFi networks. Your appliance works best when it’s within 30 feet of the router. Weak signals might need an extra router between your main router and the appliance.
Common error messages include:
- “Network not connected” – Check your mobile device’s router connection
- “Network not found” – Remove special characters from your WiFi name
- “Smart Diagnosis not available” – Power cycle the appliance
App-Related Problems
The LG ThinQ app needs proper setup to work correctly. When you face connection problems, uninstall and reinstall the app. Non-WiFi device users can find the “Add non-WiFi devices here” button at the bottom of the device addition screen.
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Device Recognition Errors
Wrong setup or connectivity issues usually cause device recognition problems. Here are some solutions that help:
Make sure your appliance shows the Smart Diagnosis logo first. Your appliance needs a stable WiFi connection during diagnosis. The problems might need a power cycle of both your mobile device and appliance if they continue.
Router problems need a complete system reset:
- Unplug the router, TV, and modem
- Wait one minute
- Reconnect the modem first
- After two minutes, plug in the router
- Finally, reconnect your appliance
Conclusion
LG Smart Diagnosis makes appliance maintenance easier and more efficient. This piece explores everything from simple setup to advanced troubleshooting techniques that help users maximize their experience.
The Smart Diagnosis technology quickly identifies and resolves appliance problems while saving money on unnecessary service calls. LG’s ThinQ app acts as a central hub that manages smart appliances and provides instant solutions with valuable maintenance tips.
Note that Smart Diagnosis works best with uninterrupted WiFi connectivity and proper app configuration. Users can solve most connection problems easily by following our outlined steps.
Smart home technology advances rapidly, and LG Smart Diagnosis shows how simple appliance management can be. These diagnostic features bring the convenience of smart appliance management right to your fingertips.
FAQs
Q1. How do I set up LG Smart Diagnosis on my appliance?
To set up LG Smart Diagnosis, download the LG ThinQ app on your smartphone, create an LG account, and connect your compatible appliance to your home’s 2.4GHz WiFi network. Ensure your appliance is within 30 feet of the router for optimal connectivity.
Q2. What types of LG appliances are compatible with Smart Diagnosis?
LG Smart Diagnosis is compatible with various appliances, including refrigerators, washing machines, ranges, ovens, and dishwashers. Look for the Smart Diagnosis logo on your appliance to confirm compatibility.
Q3. How do I run a Smart Diagnosis test on my LG appliance?
Open the LG ThinQ app, select “Smart Diagnosis” from the menu, choose your appliance type, and press “Start.” Follow the app’s specific instructions for your appliance to complete the diagnostic test.
Q4. What should I do if I’m having trouble connecting my appliance to the ThinQ app?
If you’re experiencing connection issues, ensure your router is using a 2.4GHz frequency, remove special characters from your WiFi name, and try power cycling both your appliance and mobile device. If problems persist, attempt connecting using your phone’s mobile hotspot.
Q5. How can Smart Diagnosis help me save time and money?
LG Smart Diagnosis allows you to troubleshoot common appliance issues without immediately calling for service. It provides instant answers and solutions, potentially saving you the cost of unnecessary service calls and reducing downtime for your appliances.