Freezer interior light works but the unit does not run at all; no compressor or fan noise.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Unplug the freezer before accessing the control board or thermostat.
Basic checks:
- Confirm the unit is not in demo or showroom mode (refer to user manual for your model).
- Verify the temperature setting is not at the warmest or OFF position.
Inspect control electronics:
- Access the main control board at the rear or the thermostat/control module inside the cabinet.
- Check for loose connectors, burn marks, or a blown thermal fuse on the PCB.
Corrective actions:
- Reseat connectors: Unplug and reconnect all harnesses to ensure good contact.
- Replace thermostat/control module: If your model uses a mechanical thermostat and it has no continuity when calling for cooling, replace it with a Blomberg-compatible part.
- Replace main PCB: If the board shows signs of failure or does not send power to the compressor or fan despite correct inputs, replace it.
Test: Restore power and verify that the compressor and fan start and that the freezer begins cooling.
Repair Difficulty
Required Part
We may earn a commission from links on this page.