A15
Fondital
Control Board Communication / Internal Fault
Display shows A15, often after a power surge or lightning event.
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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
Damaged electronic control board, Faulty internal communication between main and display boards, Incorrect grounding
How to Fix / Troubleshooting
Safety: Disconnect power before accessing electronic components.
- Power cycle: Turn off the main switch, wait 30 seconds, and turn it back on. Sometimes transient faults clear.
- Check grounding: Ensure the appliance earth connection is secure and that the supply polarity is correct.
- Inspect boards: Look for obvious burn marks, swollen capacitors, or water ingress on the main and display boards.
- Board replacement: If A15 persists, the control board assembly will likely need replacement by a Fondital service technician, followed by parameter configuration.
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Repair Difficulty
Professional Required
5/5
Required Part
Electronic Control Board
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