How to Clear LG Smart TV Cache? Guide for Faster Streaming

If your LG Smart TV is lagging, apps are freezing, or you're seeing glitches while streaming Netflix or YouTube, the TV cache might be the culprit. Over time, temporary data from apps and the WebOS system can slow your TV down.

In this comprehensive 2024 tutorial, you'll learn how to clear cache on an LG Smart TV, including all supported WebOS versions, so you can restore speed and fix app issues fast.

Why You Should Clear Cache on LG Smart TV​

Your LG Smart TV stores temporary data (aka cache) to help apps load faster. But when this cache becomes bloated or corrupted, it can cause:

• Sluggish menu navigation
• App crashes or freezing (like Netflix, Hulu, Disney+, etc.)
• Streaming buffering or lag
• Storage space issues on WebOS

Cleaning this cache helps free up memory and keep your TV running smoothly — just like clearing cookies on a browser.

How to Clear Cache on LG Smart TV: Step-by-Step​

There are three effective ways to clear cache on an LG Smart TV running WebOS (including older and newer versions).

Method 1: Perform a Power Cycle (Soft Reset)​

This is the easiest and fastest way to clear temporary system cache.


Steps:

1. Turn off your LG Smart TV using the remote.
2. Unplug the TV from the wall socket.
3. Wait for 60 seconds.
4. Plug it back in and turn it on.

This flushes background data and clears short-term memory — a “soft reboot” for your TV.

Method 2: Uninstall & Reinstall Problematic Apps​

If a specific app is acting up, such as buffering or crashing, reinstalling it can reset its cache.


Steps:

1. Press the Home button on the remote.
2. Navigate to the App List or LG Content Store.
3. Highlight the app you want to remove (e.g., Netflix).
4. Press the Up button and select Remove App.
5. Turn off and restart the TV.
6. Go back to the Content Store and reinstall the app.

Reinstalling apps removes all stored cache for that app, fixing most app-specific issues.

Method 3: Use Built-In Memory Optimizer (WebOS 6.0+)​

Newer LG Smart TVs have a “Memory Optimizer” tool for clearing cache and stopping background apps.


Steps:

1. Go to Settings > Support > TV Device Self-Care.
2. Select Memory Optimizer.
3. Choose Start to automatically clear unused cache and memory.

This is a safe, LG-recommended tool and should be used regularly for maintenance.

Additional Tips to Keep Your LG TV Fast​

• Regularly close background apps via the Recent Apps menu
• Keep your WebOS system updated to the latest version
• Delete unused apps to free up storage space
• Avoid overloading the TV with too many open apps

Frequently Asked Questions (FAQs)​

Q: Does LG Smart TV have a built-in “Clear Cache” button?​

A: Not exactly. While there's no single “clear all cache” button, clearing cache is possible via power cycling, app reinstalls, or the Memory Optimizer on newer models.

Q: Will clearing cache delete my app data?​

A: Reinstalling an app may remove login details or history. Use your account to log in again afterward.

Q: Why is my LG Smart TV so slow?​

A: Common reasons include cached data, too many background apps, low storage, or outdated firmware. Clearing the cache and updating your TV can help.

Q: Can I use a third-party cleaner app on LG Smart TV?​

A: LG WebOS doesn't support third-party cache cleaners. Use the built-in Memory Optimizer or manual methods above.

Final Thoughts​

If you're facing slow performance or streaming problems, now you know how to clear LG Smart TV cache the right way. Whether you're power cycling, reinstalling apps, or using the built-in cleaner, these quick steps will improve your smart TV's performance immediately.


Have a question or a cache-clearing tip? Share it below and help the LG community stay smooth and fast!