Touch controls behave erratically or are unresponsive; F7 appears on the display.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Disconnect the appliance from mains before removing the control panel. Glass edges can be sharp; wear cut-resistant gloves.
- Clean the surface: Wipe the touch glass thoroughly with a slightly damp cloth and mild detergent, then dry completely. Ensure no moisture is trapped around the edges.
- Power reset: Turn power off for 5 minutes, then back on. If F7 clears temporarily but returns when certain keys are pressed, the panel is suspect.
- Internal inspection: Remove the front control panel to access the touch PCB. Look for signs of liquid ingress, corrosion, or cracked tracks.
- Dry and clean: If moisture is present, dry the area gently with a hair dryer on low (no direct high heat) and clean corrosion with isopropyl alcohol.
- Replace panel or PCB: If specific keys remain stuck or the error persists, replace the touch control glass/PCB assembly.
Tip: Avoid using excessive water or aggressive cleaners on the control panel to prevent future failures.
Repair Difficulty
Required Part
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