Miele Washing Machine Fault Code F138 Meaning and Possible Fixes
Miele Washing Machine Fault Code F138
If your Miele washing machine displays fault code F138, the appliance has detected water in the floor tray. A leak has been detected inside the machine and the safety system has stopped the programme as a precaution.
View all Miele washing machine fault codes
What the F138 Fault Code Means
The F138 fault code indicates that water has been detected in the base tray of the washing machine due to an internal leak. A float switch or sensor in the base tray triggers this fault when water accumulates, stopping the programme to prevent water damage. This is similar to the Aquastop system found on other premium brand machines.
Common Reasons This Fault Appears
Internal leak from a hose or connection
A leaking internal hose, pump seal, drum bearing seal or water connection can allow water to drip into the base tray over time.
Leaking door seal
A damaged or worn door seal can allow water to escape during the cycle and find its way into the base of the machine.
Overfilling
If the pressure sensor or water inlet valve is faulty, the machine may overfill and water can overflow into the base tray.
Excessive foam
Using too much detergent or the wrong type can cause excessive foam that seeps into the base of the machine and triggers the float switch.
Safe Checks You Can Try
Check for visible leaks
Turn off the machine and carefully pull it forward. Check underneath and around the sides and back for any signs of moisture or water pooling.
Check detergent usage
Ensure you are using the correct type and amount of detergent for Miele machines. Reduce the amount if you suspect excessive foam.
Allow the base to dry
Carefully tilt the machine slightly forward to allow any water in the base tray to drain towards the pump. Place towels on the floor first. Leave the machine to dry before attempting to restart.
If You Need Spare Parts
If you are confident carrying out the repair yourself, compatible Miele washing machine parts are available on Amazon with next day delivery.
Always check your model number before ordering to ensure compatibility.
When To Contact A Professional
Miele advises that fault F138 requires professional attention. An engineer will need to identify the source of the water ingress and carry out any necessary repairs before the machine can be used safely again.
Internal components should only be inspected or repaired by trained professionals.
Related Miele Washing Machine Fault Codes
You may also encounter related issues indicated by Miele Washing Machine Fault Code F131 and Miele Washing Machine Fault Code F139.
Fault codes may vary slightly between different Miele washing machine models, so always consult the manufacturer documentation for your specific appliance.
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