Published September 21, 2026 by National Electric NM
Flickering lights range from a minor annoyance to an early warning of a dangerous connection. Where and when the flicker happens tells you most of what you need to know.
One light flickers
Start with the simple things: a loose bulb, a failing LED, or a dimmer that is not compatible with LED bulbs. A new LED-rated dimmer usually cures dimmer flicker.
One room or circuit flickers
This points to a loose connection somewhere on that circuit, often at an outlet where wires were pushed into the back instead of secured under the screws. Loose connections create heat, so have it checked.
Lights dim when something starts
A brief dip when the air conditioner, cooler, or well pump starts is common. A deep or lasting dim suggests an overloaded circuit or an undersized service. A panel upgrade or a dedicated circuit may be the answer.
The whole house flickers
Take this seriously. If lights get brighter in some rooms while dimming in others, the neutral connection at the panel, meter, or utility line may be loose. That can damage electronics and start fires. Call for troubleshooting right away, or our emergency line after hours.
Wind and weather
In New Mexico, flickering on windy days often comes from a worn overhead service connection moving in the wind. The utility owns part of that connection and you own part; an electrician can tell you which side the problem is on.