Vicks
No Power / Main PCB or Power Supply Failure
Humidifier will not power on at all; no lights or display.
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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
Faulty power cord, Blown internal fuse, Failed power supply board, Defective power switch
How to Fix / Troubleshooting
Safety first: Unplug the unit before opening any covers. Do not bypass safety fuses.
- Check outlet: Test the wall outlet with another device to confirm power is available.
- Inspect power cord: Look for cuts, kinks, or burn marks. If damaged, replace the cord set.
- Internal fuse: If you are experienced, open the base and locate the internal fuse on the PCB or near the power entry. Test with a multimeter and replace only with the same type and rating if blown.
- Power switch and PCB: Verify that the power switch has continuity when ON. If the switch is good and the fuse is intact but there is still no power, the main control PCB or power supply module likely needs replacement.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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