F14
Bauknecht
Heater Relay / Control Board Heating Error
Dishwasher shows F14 and may not heat or dry properly.
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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
Burnt heater relay contacts on control board, Cold solder joints on PCB, Faulty main control board, Overheated wiring at heater terminals
How to Fix / Troubleshooting
Safety first: Disconnect power. The control board carries live mains voltage.
- Confirm heating issue: Run a hot program and check if the water heats. If not, and heater itself tests good, suspect control.
- Inspect control board: Remove the control module from the base or door (depending on model). Visually inspect for burnt areas, especially around the heater relay.
- Check connectors: Ensure heater connectors on the board and at the heater are tight and not discolored from overheating.
- Board repair or replacement: If the relay is visibly damaged or the PCB is burnt, replace the entire control board. Component-level repair should only be done by qualified technicians.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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