Er
Blomberg
Generic Control Error / Firmware Fault
Display shows Er or generic error; unit may beep and not respond to some controls.
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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
Temporary control lockup, Power surge or brownout, Corrupted control firmware, Internal main PCB failure
How to Fix / Troubleshooting
Safety: Unplug the unit before handling the control panel or PCB.
- Hard reset: Disconnect power for at least 10 minutes. Press and hold any control buttons for 10 seconds with power off to help discharge the board, then reconnect.
- Check power supply: Verify the outlet voltage is stable and within specification (typically 220–240V or 110–120V depending on region). Avoid using long, undersized extension cords.
- Inspect control board: If Er returns, remove the access panel and inspect the main PCB for visible damage. Reseat all connectors.
- Board replacement: If no external cause is found and Er persists, replace the main control board with the correct Blomberg part. This often resolves generic error conditions.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board (PCB)
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