iC0
Frigidaire Gallery
Control Panel / User Interface Communication Error
Dishwasher displays iC0; controls may be unresponsive or behave erratically.
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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 ribbon cable between UI and main control, Moisture intrusion into control panel, Failed user interface board, Failed main control board
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before removing any control panel screws.
- Reset the control: Turn off the breaker for 5 minutes, then restore power to see if the code clears.
- Inspect control panel: Remove the inner door panel to access the user interface board. Check the ribbon cable and connectors for secure fit and signs of corrosion or moisture.
- Dry moisture: If you see condensation or water inside the control area, allow it to dry completely and identify any door vent or gasket issues that may be allowing steam into the panel.
- Replace faulty board: If connections are good and the code persists, replace the user interface board first. If that does not resolve the issue, the main control board may also need replacement.
Handle electronic boards with care to avoid static damage.
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Repair Difficulty
Hard
4/5
Required Part
User Interface Control Board
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