F48
Bauknecht
Cooktop Control to Power Module Communication Fault
Induction cooktop shows F48, multiple zones may be affected
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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
Faulty main control board, Damaged communication harness, Power module not powered correctly, Firmware incompatibility after board replacement
How to Fix / Troubleshooting
Safety first: Disconnect mains power before opening the cooktop.
- Power reset: Turn off power for at least 1 minute, then restore. Sometimes communication errors clear after a reset.
- Inspect harness: Access the underside and locate the low-voltage communication cables between the user interface board and the power modules. Check for pinched or damaged wires and reseat connectors.
- Check supply to modules: Verify that each power module receives mains voltage (qualified persons only).
- Replace faulty board: If wiring is intact, replace the main control/user interface board first. If the error remains, suspect a defective power module.
Warning: Incorrect replacement boards can cause further errors; always use the exact Bauknecht part number.
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Repair Difficulty
Professional Required
5/5
Required Part
Induction Main Control Board
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