hOmeLabs
Unstable Power Supply / Voltage Drop
Display lights flicker or dim while unit is running
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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
Weak household circuit, Loose internal power connections, Failing control board power supply, Using long or undersized extension cord
How to Fix / Troubleshooting
Safety: Unplug before opening panels.
Steps:
- Use proper outlet: Plug directly into a dedicated, grounded wall outlet. Avoid extension cords.
- Check circuit load: Do not share the circuit with high-draw appliances (microwave, toaster, etc.).
- Inspect internal connectors: Tighten and reseat power connectors on the control board.
- Observe behavior: If flickering occurs only when the compressor starts, some dimming may be normal, but severe flicker suggests a power issue.
Persistent flickering with proper power supply indicates a failing control board power section that may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board
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