Bosch
Intermittent Control or Sensor Fault
Wine cooler cools intermittently, sometimes warm, sometimes correct temperature
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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
Loose sensor connector, Intermittent main control board, Failing compressor start relay, Overheating due to poor ventilation
How to Fix / Troubleshooting
Safety: Disconnect power before inspecting internal components.
Steps:
- Check installation: Ensure proper ventilation and that the unit is not exposed to direct sunlight or heat sources.
- Inspect connectors: Access the main control board and gently reseat all connectors, especially those from temperature sensors and the compressor.
- Observe operation: After reassembly, monitor the unit over 24–48 hours. Note if the compressor fails to start at times, which may indicate a failing start relay.
- Replace suspect parts: If tapping the control area causes the unit to start/stop, the control board may have cracked solder joints and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board
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