E14
Grünbeck
Real-Time Clock / Backup Battery Fault
Display shows E14 and the unit indicates a timekeeping or clock error
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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
Depleted backup battery on PCB, Power outages without backup, RTC chip failure, Incorrect time settings
How to Fix / Troubleshooting
Safety: Disconnect power before opening the control housing.
- Reset time: Enter the settings menu and correct the date and time. Save and observe whether the settings are retained after a short power interruption.
- Check backup battery: On some control boards, a small battery or supercapacitor maintains the clock. If accessible and allowed by Grünbeck, replace it with the specified type.
- Minimize outages: Ensure the unit is connected to a stable power source. Avoid frequent unplugging.
- PCB replacement: If the clock cannot keep time even with a new battery, the RTC circuit on the PCB is defective and the board should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Control PCB (RTC and Backup Battery)
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