Siemens
User Interface Power / Backlight Issue
Dishwasher display or LEDs flicker or are very dim, but machine still runs.
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Safety Warning
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.
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Possible Causes
Loose connector to UI board, Failing LEDs or display module, Low voltage from power module to UI, Moisture ingress in control panel
How to Fix / Troubleshooting
Safety first: Disconnect power before removing the control panel.
- Step 1 – Check for moisture:
- Inspect the control panel area for signs of condensation or water ingress.
- Dry thoroughly if moisture is present and identify any leak paths from the door seal.
- Step 2 – Reseat connectors:
- Remove the inner door panel to access the user interface board.
- Unplug and replug the ribbon cable and connectors between the UI and main board.
- Step 3 – Visual inspection:
- Look for burnt or corroded components on the UI board.
- Step 4 – Replacement:
- If flickering persists, replace the user interface module or, if indicated, the power module supplying it.
While the dishwasher may still run, a failing display can make operation difficult; address the issue before it worsens.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Control Panel
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