The dimmer switch might be faulty or overloaded.
Solutions: Check the bulb wattage doesn't exceed the dimmer's maximum rating. If overloaded, reduce bulb wattage or install a higher-rated dimmer. There is such as thing as underloaded, especially if you've recently changed over to LED lamps. If neither of these are the case, consider replacing the dimmer switch.
It's not very often our dimmers don't work fantastically. We probably have a 95% success rate when we fit our dimmers, which gets the full range of dim that we know, love and share on our videos. Make sure your light fitting / bulbs are in fact dimmable, and we'll do the rest.
