Miele Washer Error Code F138

Miele Washer Error Code F138 is a common issue that signals water has been detected in the appliance’s drip tray. This is a built-in safety mechanism that prevents internal leaks from damaging your washer or surrounding area. Understanding this error, its causes, and how to resolve it can help you restore your washer’s performance quickly and effectively.

What Does Miele Washer Error Code F138 Mean?

When your Miele washer displays the F138 error, it means the machine’s sensor has detected excess water in the bottom drip tray. The washer immediately triggers a fault to stop further operation and reduce the risk of electrical or mechanical damage.

The drip tray collects leaking water from internal components such as hoses, seals, the detergent drawer, or the drain pump. If not addressed promptly, this water can affect electrical parts or result in repeated errors.

Common Causes of the F138 Error Code

Several factors may cause water accumulation in the drip tray:

• Leaking hoses or connectors inside the washer

• Faulty or worn door seal allowing water to escape

• Overflowing detergent dispenser during wash cycles

• Drain pump or pipe leaks due to clogs or cracks

• Blocked filters causing water to back up into the unit

Step-by-Step Troubleshooting Guide

1. Unplug the Washer

For your safety, always disconnect the appliance from the power supply before opening any panels or performing checks.

2. Access the Drip Tray

Remove the lower front panel of your Miele washer to reach the drip tray. Be cautious—there may be water inside.

3. Drain and Clean the Tray

If water is present, carefully absorb it using towels or a sponge. Once empty, clean the tray to remove any debris or soap buildup.

4. Inspect Internal Components

Look for visible leaks around hoses, the detergent drawer, water connections, and the drain pump. Tighten any loose connections or replace damaged parts.

5. Dry the Sensor Area

Use a cloth to dry the area around the drip tray sensor. Moisture in this area may cause the washer to continue displaying the F138 error, even after the leak is fixed.

6. Reset the Washer

Once everything is dry and secure, plug in the appliance and restart it. If the problem is resolved, the error code should disappear.

When to Call a Technician

If the F138 error code keeps returning after basic troubleshooting, you may be dealing with a hidden internal leak or a faulty sensor. In such cases, it’s best to contact a certified Miele repair technician to diagnose and fix the issue safely.

Final Thoughts

The Miele Washer Error Code F138 is a clear indicator that your washer has detected water in the drip tray—a problem that should not be ignored. By acting promptly, inspecting key components, and drying out the tray, you can often fix this issue yourself. But if the problem persists, expert help is recommended to prevent further damage.