F9 E4
Bauknecht
Drying Heater / Fan Control Fault
Dishwasher displays F9 E4, often with drying issues.
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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
Defective drying heater, Faulty fan control on PCB, Wiring fault to drying system, Overheat thermostat open
How to Fix / Troubleshooting
Safety first: Disconnect power.
- Check thermostat: Locate the drying heater thermostat and test for continuity. Replace if open.
- Inspect heater: Measure resistance of the drying heater; replace if open circuit.
- Check fan wiring: Ensure all connectors are secure.
- Replace board if needed: If components test good, the control board may be at fault.
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Repair Difficulty
Hard
4/5
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