E10
Blomberg
Low-Voltage Power Supply Fault
Wine cooler displays E10 and interior light or other low-voltage features may not work correctly.
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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
Failed low-voltage regulator on main PCB, Shorted LED light module, Shorted fan or sensor circuit drawing down supply, Damaged wiring harness causing short to chassis
How to Fix / Troubleshooting
Safety: Unplug the unit before inspecting wiring or boards. Avoid touching exposed solder joints with power applied.
- Check for obvious shorts: Inspect interior LED light modules, fans, and wiring for burn marks or melted insulation. Disconnect suspect components one at a time and see if E10 clears after reconnecting power.
- LED module test: If the interior light flickers or never comes on, disconnect the LED module and test the unit. A shorted LED module can trigger E10 and must be replaced.
- Fan and sensor circuits: Disconnect evaporator fan and non-critical sensors temporarily to isolate a shorted component.
- Inspect main PCB: Look for burnt low-voltage components (small regulators, diodes, or resistors). If damaged, replace the main control board.
- Reassemble: Once the faulty component is identified and replaced, reconnect all harnesses, restore power, and verify that E10 is cleared.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (PCB) or LED Light Module
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