How to Open and Check the Impeller on the Mellif Cordless Water Transfer Pump

Introduction

If your Mellif Cordless Water Transfer Pump runs but does not move water properly, the impeller may be blocked or worn.

This guide will show you how to safely open the pump, check the impeller, and replace it if necessary. You can also follow the video tutorial below for a step-by-step demonstration.

Product
Mellif Cordless Water Transfer Pump

When Should You Check the Impeller

You may need to inspect the impeller if you notice:

• The pump runs but water flow is very weak
• The motor makes noise but no water is pumped
• The pump stops working after debris enters
• The impeller is difficult to rotate

Tools You May Need

• Screwdriver
• Needle-nose pliers (optional)
• Replacement impeller (if needed)

Video Tutorial

Watch the video below for a full step-by-step demonstration:

VIDEO LINK

https://drive.google.com/file/d/1erkYyLPBQ60O7LjnJleHMNHzkgBxSGZj/view

Step 1: Turn Off and Remove the Battery

Before opening the pump, always remove the battery to ensure safety.

Never attempt to disassemble the pump while the battery is installed.

Step 2: Open the Pump Cover

1. Locate the screws on the front pump cover.

2. Use a screwdriver to remove the screws.

3. Carefully lift off the cover to expose the impeller.

Be careful not to lose the screws during this process.

Step 3: Check the Impeller

Once the cover is removed, inspect the impeller carefully.

Check for:

• Dirt or debris stuck around the blades
• Damage or wear on the impeller blades
• Difficulty rotating the impeller

Try rotating the impeller gently by hand. It should rotate smoothly.

If debris is present, remove it carefully.

Step 4: Replace the Impeller (If Needed)

If the impeller is damaged or worn, it may need to be replaced.

1. Carefully remove the old impeller.

2. Install the new impeller in the same position.

3. Make sure it rotates freely before closing the pump.

Step 5: Reassemble the Pump

1. Place the cover back onto the pump.

2. Tighten the screws securely.

3. Reinstall the battery.

4. Test the pump to ensure it works normally.

Need Help?

If the pump still does not work after checking the impeller, please contact our customer support team with a short video of the issue. Our team will be happy to assist you.