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Deanna MullinsAug 3, 2025
Why is my COLUMBIA VAC Air Conditioner not working?
- WwhitejenniferAug 3, 2025
If your COLUMBIA VAC Air Conditioner isn't functioning, first ensure it's properly connected to a power supply outlet and switched on. Also, if "D" is flashing on the display screen, it indicates that you need to drain the water.


