Replacing the filter cartridge in your LG PuriCare Self-Service Tankless Water Purifier is a straightforward process. Here’s a detailed step-by-step guide to help you with the filter change, applicable for models WD216AN, WD516AN, and WD518AN:

1. Remove the Dispenser Tray:

   - Gently pull out the dispenser tray from the bottom of the purifier. This is where glasses or bottles are placed when dispensing water.

2. Open the Filter Cover:

   - Locate the filter cover on your LG PuriCare model. This is usually found on the front side of the purifier.
   - Open the cover by pulling the machine cover open.

3. Remove the Old Filter:

   - Identify the filter that needs replacement. It should be easily visible once the cover is open.
   - Twist the filter counterclockwise to unlock it from its housing. Then, gently pull it out. Be cautious as there might be some water in the filter.

4. Clean the Filter Joint:

   - Use a small brush to clean the joint where the filter was connected. This helps ensure a good seal and removes any debris that might impede the installation of the new filter.

5. Assemble the New Filter:

   - Remove any packaging or caps from the new filter.
   - Align the new filter with the housing and insert it.
   - Turn the filter clockwise to secure it in place. Ensure it’s snug and properly locked.

6. Close the Filter Cover:

   - Once the new filter is in place, close the filter cover securely. Make sure it snaps or clicks into place, indicating that it’s properly closed.

7. Place the Dispenser Tray:

   - Reinsert the dispenser tray at the bottom of the purifier.
   - Ensure it’s properly aligned and pushed in completely.

8. Flush the New Filter (Additional Step):


   - It's often recommended to run water through the new filter for a few minutes to remove any carbon fines or trapped air. This step might not be explicitly mentioned in your guide but is considered good practice. After placing the filter cover properly, the machine itself will start auto flusing the filter. It take about few minutes, once done it can be use as usual.

if your machine with cold function : Press and hold "Cold" button for 3 seconds for reset the filter 
if your machine without cold function : Press and hold "Cont" button for 3 seconds for reset the filter 

After completing these steps, your LG PuriCare Water Purifier should be ready to provide fresh, clean water again. If your model has a filter change indicator, remember to reset it following the instructions in your user manual. If you encounter any issues or are unsure about any step, refer to the user manual or contact LG customer support for assistance.

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