E8
Blomberg
Main Control Board Failure
Wine cooler shows E8 and may shut down cooling or run at full power without proper control.
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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
Internal failure of main PCB, Power surge damage, Burnt relay contacts, Corrupted control firmware
How to Fix / Troubleshooting
Safety: Disconnect power before accessing the rear or top control compartment. Capacitors on the PCB can hold charge briefly after unplugging.
- Power reset: Unplug the unit for 10 minutes to discharge the board, then reconnect. If E8 returns immediately, proceed.
- Inspect PCB: Remove the rear or top access panel to reach the main control board. Look for burnt components, bulging capacitors, or darkened areas.
- Check connectors: Reseat all harness connectors to the board, ensuring no pins are bent or corroded.
- Surge protection: If the error followed a power outage or surge, consider installing a surge protector after repair.
- Replace main PCB: If visual inspection confirms damage or E8 persists after connector checks, replace the main control board with the correct Blomberg part number. Transfer any jumper settings or wiring exactly as on the original.
- Professional help: If you are not comfortable handling electronic boards, contact an authorized Blomberg service technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (PCB)
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