When your lights go out or flicker when you turn on your air conditioner (AC), it is likely due to a phenomenon called voltage drop. The AC unit draws a significant amount of power when it starts up, causing a temporary decrease in the voltage available for other devices on the same circuit. This voltage drop can cause lights to dim or momentarily go out.
To fix this issue easily and cheaply, you can try the following steps:
Check the circuit capacity: Ensure that the circuit supplying power to both the AC unit and the lights can handle the combined load. If the circuit is overloaded, it may cause voltage drops. You can consult an electrician to assess the circuit capacity and make any necessary adjustments, such as upgrading the circuit or redistributing the load.
Use a dedicated circuit: Consider installing a dedicated circuit for your AC unit. A dedicated circuit ensures that the AC unit is the only device connected to that circuit, reducing the chances of voltage drops affecting other devices.
Use a startup delay: Install a startup delay device or a time-delay relay specifically designed for air conditioning systems. These devices introduce a slight delay in the AC unit's startup, allowing the voltage to stabilize before the full power load is applied. This can help mitigate the voltage drop and prevent lights from flickering or going out.
Use LED lights: If you are using incandescent or CFL (compact fluorescent lamp) lights, consider replacing them with energy-efficient LED lights. LED lights typically require less power and are less susceptible to voltage drops, minimizing the impact on your lighting when the AC starts up.
Consult an electrician: If the issue persists or you are uncertain about handling electrical modifications, it is best to consult a qualified electrician. They can evaluate your specific electrical system, identify any underlying issues, and recommend appropriate solutions.
Remember, working with electricity can be dangerous, so it's crucial to prioritize safety and involve professionals when necessary.