DupTest Error Code 4E

Seeing error 4E on your DupTest EcoBubble washing machine? I totally get how frustrating that can be, especially when you just want to get your laundry done! This error usually means there's a water supply issue or that the water pressure is too low for your machine to fill up. Let’s walk through some simple steps to get your machine back in action.

First, let’s check your water supply. Is the water tap fully open? Sometimes, a simple turn can be all it takes! If that’s good, take a look at the hoses. Make sure they’re not kinked or bent, as this can block the water flow. If you're not sure, gently straighten them out and see if that helps.

Next, let’s check the water pressure. The ideal pressure for your washing machine is usually between 20-100 psi. If you have a pressure gauge, you can test it right at the tap. If you find it’s too low, consider checking with your water supplier or a plumber because it might be a bigger issue.

If everything seems fine but the error persists, you might need to inspect the inlet valve. This valve lets water into your machine, and if it’s faulty, it could be the culprit behind the 4E error. It’s not too complicated to replace, but you’ll need some basic tools. Here’s a step-by-step fix: 1. **Unplug your washing machine** and **turn off the water supply**. 2. Use a **screwdriver** to remove the back panel of the machine. 3. Disconnect the water hoses from the inlet valve—be prepared for some residual water. 4. Use **pliers** to remove the inlet valve and replace it with a new one (these usually cost around $25). 5. Reconnect everything, plug the machine back in, and turn the water supply back on. 6. Run a quick cycle to see if the error is resolved.

Overall, this is an **easy fix** for most DIYers, and you should be able to tackle it in about **30 minutes**. If you’re not comfortable with any of these steps, or if replacing the inlet valve doesn’t work, it might be time to call a pro, which could cost around **$150**. Remember, a little patience goes a long way, and you’ll be back to laundry day in no time!

Tools Required

• screwdriver
• pliers

Replacement Parts

Note: Professional service includes parts and labor. Cost: $150

Common Symptoms

• Washing machine not filling with water
• Error message displayed on screen

Technical Information

Root Cause: Water supply issue or low water pressure.

Related Error Codes

Document ID: duptest-ecobubble-4e-error-fix

Views: 30 | Last Updated: December 9, 2025