Washer-dryer combo displays F70 and may be unresponsive or stuck.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose UI-CCU harness, failed user interface, failed CCU, oxidized connectors

Safety first: Unplug the appliance before removing the console or top panel.

Step-by-step checks:

Reseat UI and CCU connectors: Disconnect and reconnect all harnesses between the UI and CCU.
Inspect for corrosion: Look for green/white deposits on connector pins and clean if necessary.

When to replace: If wiring is good, replace the user interface board first. If F70 remains, replace the CCU.

Hard 4/5

User Interface Control Board

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